01 lfs technical and product manual

Tel: 0044 (0) 1302 745838 Fax: 0044 (0)1302 745839 E-mail: [email protected] web: www.liftingandfixing.co.uk

1

PRODUCT GUIDE AND

PRECAST TECHNICAL MANUAL

The professional choice for all your precast

concrete anchors and accessories


2

LFS Product and Technical Manual

Contents

Page 3-4

Page 5-22

3—41

Page 46—62

Page 63

Precast Concrete Lifting Design

Capstan Transport Anchor Systems

Threaded Lifting Systems

Spread Anchor System

Plastic Accessories


3

Precast Concrete Lifting Design

The selection of lifting devices should be carefully made dependant on the type of lift or lifts that the unit will be subject to once manufactured. It is vitally important to ensure both safe lifting and that no damage to the

concrete occurs. When assessing the lifting of a unit the following factors must be considered.

The Weight of the Unit

The dead weight of a normal precast unit should be calculated using a concrete density of 2500kN/m2. The theoretical weight can be calculated either mathematically via the dimensions of the unit or through design packages. The adhesion to the mould must also be included in the calculation of forces dependant on the type

of mould that the unit is cast in. The following can be used as a guide:

Oiled steel mould = 1kN/m2

Varnished timber mould = 2kn/m2

Rough timber mould = 3kn/m2

The value of adhesion to the mould is calculated by multiplying the area of the concrete in contact with the

mould by the adhesion factor = Area x Mould Adhesion Factor

Double T Beam should be calculated using 2 x deadweight and Coffered units should be 4 x deadweight.

Dynamic Loads

These should be calculated in most lifts of precast units, they are controlled by both the velocity and quality

of lifting equipment and the terrain being transported across.

The following factors should be used:

Demoulding = x 1.1

Turning = x 1.3

Site Transportation = x 1.5 (With a stationary crane)

Site Transportation = x 1.65 (Over even ground)

These are based on using overhead or static cranes at speeds of <=90m/min. For rough ground or when the site

installation details are not known, always use a factor of Dynamic Load ≥ x 2.

The true mass of a precast unit for anchor specification is worked out as follows:

(Demoulding) Mass = (Deadweight +Adhesion Factor) x Dynamic Load

(Transportation) Mass = Deadweight x Dynamic Load

Sling Angle

The angle is dependant on the length of chains / cables that are used to lift the unit. The shorter the chains the greater the tensile load becomes on each anchor point. The following table show the factors by which the

pull factor should be calculated.

Angle β Pull Factor (z)

0º 1.00

15º 1.01

30 1.04

45º 1.08

60 1.16

90º 1.41

(Consult LFS for angles above 90º)

z

z

β


4

Calculation of Anchor Loads

It is imperative to ensure that the load is distributed as evenly as possible

when deciding on the number of anchors and lift design.

Thin walled panels and beams should be lifted and turned with two anchors either with angled chains (1) or a spreader beam (2). This ensures even load distribution across both anchors providing the anchors are set out symmetrically either side of the centre of gravity. Please ensure that for

turning units that the correct extra reinforcement is observed.

For slab type units it is always advisable to use four anchors and a spreader beam (3) to ensure even weight distribution. It is not possible to calculate anchor loads for four anchors in panels as the exact distribution of load cannot be guaranteed (4) . Where the unit necessitates such a lift it is essential to use an equalising device (5) that will distribute loads evenly across all four anchors. The use of such a system must not only be available at all areas that the unit is lifted, but also used only by trained and experienced persons. If any details of any part of the lift is not be available

then it should be taken that two anchors will be load bearing.

A three point lift as show in (6) will always provide an even distribution of load providing the anchors are spaced evenly and correctly around the

centre of gravity.

All demoulding should take place with a minimum concrete strength of 15N/mm2 and ensuring that any load reduction factors are taken into account. The safe working loads of all anchors are a minimum of three

times and two times for the concrete.

Anchor Loading

To establish the actual anchor loadings, the following calculations are used:

Demoulding

Force / Anchor = (Dead Weight + Adhesion) x Dynamic Load x Pull Factor

No. Anchors

Transportation

Force / Anchor = Dead Weight x Dynamic Load x Pull Factor

No. Anchors

Example – 5m x 1m x 1m Beam. Area = 5m2 Deadweight = 12500kg

Factory - Oiled steel mould, β = 15º, 2No. Anchors, Overhead Crane Only

Site Lift - β = 30º with Static Crane only

Demoulding = 12500kg + (5m x 1kN/m2) x 1.1 x 1.04 = 7436kg per Anchor

2

Transportation = 12500kg x 1.5 x 1.04 = 9750kg per Anchor

2

It is essential that the details in this literature are made available to all production staff and that they are aware of and understand the

installation instructions and safety regulations.

LFS offer a full technical support service including design calculations and

on site pullout testing. Please contact us for further details.

(3) 4No. Load

Bearing Anchors

β

z

z

z z

(4) 2No. Load

Bearing Anchors

β z z

(5) 4No. Load

Bearing Anchors

z z

z

z

β

(6) 3No. Load

Bearing Anchors

120º

β z

z

z

(2) 2No. Load

Bearing Anchors

z

z

(1) 2No. Load

Bearing Anchors

z z


5

Capstan Transport Anchor System

The Capstan Transport Anchor system is a simple and effective system for lifting most types of precast concrete

unit. The anchors are forged from high grade steel and, provided the anchor is specified and installed

correctly, provides safe and secure lifting, turning and transportation of units. Anchors are available in black,

zinc plated, galvanised, 304 and 316 stainless steel

Each anchor is stamped on the head with the manufacturers identification and maximum load rating of the

anchor. Anchors are tested to a safety factor of at least three times their safe working load and 2.5 times

concrete failure when installed to the guidelines that follow. Lifting Shackles are proof loaded to twice their

safe working load and are supplied with a test certificate that is valid for six months from date of purchase.

Capstan Anchors are designed for demoulding, transport and site fixing. They should not be used for repeated

lifting applications.

Capstan Transport Anchor

1.3t—32.0t load groups and are

suitable for large units such as

staircases, slabs, wall units, beams

and pipes.

Capstan Eye Anchor

1.3t—32.0t load groups and use with a

reinforcement tail in thin walled units.

Sandwich Panel Anchor

1.3t—20.0t load groups and are

suitable for large sandwich panels

allowing vertical lifting.

Capstan Rod Anchor

2.5t—15.0t load groups and are suitable

for very thin precast units.

Double Head Capstan Anchor

1.3t—7.5t load groups and have

been developed for automatic

installation in concrete pipe

manufacture. These have also

proved very effective for

Hollowcore production.

Capstan Plate Anchor

2.5t—10.0t load groups with a

welded plate for production of

thin slabs and demoulding

horizontally cast wall panels.

Anchor Types


6

Capstan Rubber Recess Former

1.3t—32.0t load groups and are for

attaching the anchor to the mould

before casting. The former creates

a void in the precast to accept the

Shackle and to allow lifting through

360o.

Capstan Fixing Screw

1.3t—32.0t load group and are for attaching

the former through the mould. The screw

holds the anchor tightly to the formwork

when fastened with a washer and nut.

Capstan Magnetic Recess Former


attaching the anchor to steel

moulds before casting. The former

creates a void in the precast to

accept the Shackle and to allow

lifting through 360o.

Capstan Steel Recess Former and

Grommet


attaching the anchor to steel moulds

before casting. The former creates a void

in the precast to accept the Shackle and

to allow lifting through 360o. This part

requires a hole in the mould through

which a fixing screw is inserted and

fastened with a washer and nut.


Capstan Anchor Accessories

Double Head Capstan Magnetic Recess Former

1.3t—10.0t load groups and are for attaching the anchor to the mould. The

former creates a void in the precast to accept the Shackle and to allow lifting

through 360o. They are available with either three or six magnets dependant on

the adhesion required. A rubber version for use in wooden moulds or for quick

release floating applications such as hollow core flooring is also available.

Capstan Lifting Shackle

1.3t—32.0t load groups and are for lifting and turning concrete units with

corresponding anchors cast in. The shackle head surrounds the anchor and can rotate

through 360o. Only the correct shackle for the anchor load group will fit.


7


Anchor Use and Specification Considerations

The LFS range of Capstan Transport Anchors are a simple and effective system for lifting most types of precast

concrete units. The anchors are manufactured from high grade steel and, provided the anchor is specified and

installed correctly, provides safe and secure lifting.

The anchors are designed as a method of demoulding, transportation and installation of precast units and

should not be used for repeated lifting. All anchors are tested by an independent institution to at least three

times safe working load and are supplied with batch numbers and certification on request. All shackles are

individually proof loaded to twice safe working load and supplied complete with certification on delivery. All

load table data is based upon a safety factor of 2.5 to 1 against concrete failure.

Anchor Operation

The Capstan Transport Anchor works by the distribution of load into the concrete via the tapered foot as shown

below, this provides high load values with short embedments in the concrete. The forces can even be

transferred into thin walled panels and safely lifted with the correct reinforcement.

Load Direction

Load transfers into the concrete in a cone

pattern and will breakout in this manner if

overloaded

It is essential to specify the correct length of anchor relevant to

the unit being lifted and the compressive strength of the

concrete at the time of lifting. This is a very important

consideration as reduced anchor loadings are experienced in low

strengths .

Installation

The anchors are installed in the formwork using one of a variety

of recess formers. These hold the anchors securely during

concrete pouring and create a void in which the shackle fits

after removal and once the concrete has cured. The anchor and

the recess will only accept the corresponding shackle rendering

mismatching load groups impossible.

The anchors are available in various lengths for use dependant on the application required. In general, longer

anchors are to be used in thin panels or low strengths whereas short anchors are best in slabs and stronger

concrete.

It is essential that consideration is taken to ensure that the anchors are equally positioned around the centre of

gravity and that loads are distributed evenly between each anchor.

LFS offer a full technical support including calculations and on site pullout testing.

Please contact LFS for further details.


8


Installation Instructions for Panels and Beams

For vertical lifting of panels and beams the minimum edge distance required is as follows:

Edge Distance F = (Anchor Length A + Recess Depth E) x 3

These dimensions assume that the concrete is un-reinforced. Smaller edge distances are possible with suitable

reinforcement.

Walls and beams that contain only standard reinforcement shown overleaf should only be lifted at angles of

β ≤ 30o. If the loading on the anchors is reduced then the amount of reinforcement can be reduced.

F

A

E C

B

D

Load Group Length A

mm

Shank Dia.

B mm

Foot Dia. D

mm

Head Recess

Depth E mm

Edge Distance F

mm

1.3t 120 10 25 10 390

1.3t 240 10 25 10 390

2.5t 140 14 35 11 450

2.5t 170 14 35 11 450

5.0t 240 20 50 15 765

5.0t 340 20 50 15 765

5.0t 480 20 50 15 765

7.5t 300 24 60 15 945

7.5t 540 24 60 15 945

7.5t 680 24 60 15 945

10.0t 340 28 70 15 1100

10.0t 680 28 70 15 1100

15.0t 400 34 85 15 1250

20.0t 500 39 98 15 1550

20.0t 1000 39 98 15 1550

32.0t 700 50 130 23 2150

32.0t 1200 50 130 23 2150

Head Diameter

C mm

19

19

26

26

36

36

36

47

47

47

47

47

70

70

70

85

88

Anchor Dimensions and Edge Spacing Required

All other length variations have the same shank, foot and head dimensions. Special lengths are available to

order on request.


9

Load Capacities for Angled Lifting in Panels and Slabs

The table below is the permissible loads for axial or angled lifting in panels or slabs using Capstan Transport

Shackles. The maximum angle of lift is β = 30o.

10kn = 1 tonne of force

z

z

β

A B

10mm Min.

The table below assumes no edge reinforce-

ment and the edge distances can be reduced

in reinforced concrete.

Other lengths of anchor are available.

Slabs should be designed to accommodate

lifting moments during transportation.

Main reinforcement is not required.

C

Load Direction

Load Group Length A mm Min. Unit

Thickness B mm Edge Distance C

mm Maximum Load

15N/mm2 Maximum Load

25N/mm4

1.3t

40 60 150 5 8

50 70 180 8 10

65 85 225 13 13

85 105 285 13 13

2.5t 85 106 288 20 25

5.0t

85 110 300 24 36

95 120 330 29 44

120 145 405 50 50

7.5t

100 125 345 32 46

120 145 405 50 67

140 165 465 68 75

165 190 540 75 75

10.0t

115 140 390 44 65

135 160 450 62 77

150 175 495 70 84

170 195 555 80 100

15.0t

140 165 465 68 88

165 190 540 78 111

200 225 645 113 150

20.0t 200 225 645 113 150

240 265 765 145 180

32.0t

200 225 699 127 171

250 283 819 180 210

280 313 909 220 240

2.5t 120 155 393 25 25


10

Reinforcement Required for Axial Lifting

Minimum concrete strength = 15N/mm2

Load Group

Mesh Reinforcement Both Sides mm2/m

Insert Stirrup Edge Reinforcement Diameter mm

No. Diameter L1 mm

1.3t A142 Consult LFS

2.5t A142

5.0t A142 6 8 700 8

7.5t A252 6 10 1160 8

10.0t A252 6 10 1160 12

15.0t B503 8 10 1240 12

20.0t B503 8 10 1240 12

32.0t 2 x B503 8 12 1400 16

Please Note:

Where possible lifting angle should not exceed

30o.

Where mesh reinforcement is specified, an

equivalent amount of reinforcement steel or

smaller mesh with additional steel can be used.

Edge reinforcement steel should be 460 grade

1.3t and 2.5t anchors only require one layer of

mesh when minimum panel thickness is 60mm

15º Max.


11

Load Group Length B

mm

Min. Unit Thickness

d mm

Maximum Load 15N/mm2



1.3t 120

60 13

13 13 70 13

80 13

2.5t 170

80 21 24

25 100 24 25

120 25

5.0t 240

100 43 49

50 120 50 50

140 50

7.5t 300

120 60 69

75 140 67 75

160 75

10.0t 340 140 100 100 100

15.0t 400

160 128 148

150 180 142 150

200 150

20.0t 500

160 166 191

200 180 182

200 200 199

220 200

32.0t 700

200 191 221 247

220 211 243 272

240 231 267 298

260 253 292

320 280 275 318

300 299 320

320 320

Load Capacities for Axial Lifting for Panels and Beams



12


Reinforcement Required for Angled Lifting

Minimum concrete strength = 15N/mm2

Load

Group

Mesh Rein-forcement Both Sides

mm2/m

Diagonal Lift

Reinforcement Insert Stirrup

Edge Reinf.

Diameter mm Diameter

ds mm B mm L mm No. Diameter L1 mm a mm

1.3t 142 10 40 1900 8 10 680 100 10

2.5t 142 10 40 1900 8 10 680 100 10

5.0t 142 10 48 2100 8 10 940 125 12

7.5t 257 12 64 2100 8 10 1160 125 12

10.0t 257 16 140 2200 8 10 1160 125 12

15.0t 513 20 140 3900 8 10 1240 125 14

20.0t 513 20 140 3900 8 10 1240 125 16

32.0t 1026 25 175 4500 8 12 1400 125 16

Please Note:

Where possible lifting angle should not exceed 30o.

Where mesh reinforcement is specified, an equivalent

amount of reinforcement steel or smaller mesh with

additional steel can be used.

Edge reinforcement steel should be 460 grade

1.3t and 2.5t anchors only require one layer of mesh

when minimum panel thickness is 60mm

45º Max.


13

Load Group Length B mm Min. Unit

Thickness d mm

Maximum Load

15N/mm2

Maximum Load

20N/mm3

Maximum Load

25N/mm4

1.3t 120 95 13 13 13

2.5t 170 100 25

25 25 120 25

5.0t 240

120 38 44 49

140 42 48

50 160 46 50

180 50

7.5t 300

140 42 48 54

160 47 54 60

180 52 60 67

200 59 69

75 220 66

75 240 71

260 75

10.0t 340

140 58 67 75

160 65 75 84

180 72 83 92

200 79 92

100

220 84 98

240 90

100 260 95

280 100

15.0t 400

160 79 91 102

180 88 102 113

200 97 112 125

220 107 124 138

240 118 136

150 260 129 149

280 141 150

300 150

20.0t 500

160 128 147 165

180 140 162 181

200 154 177 198

220 168 194

200 240 182

200 260 198

280 200

32.0t 700

200 147 170 190

220 167 187 209

240 178 206 230

260 195 225 251

280 212 245 247

300 230 266 297

320 249 288

320

340 269 311

360 290

320 380 312

400 320

Load Capacities for Angled Lifting for Panels and Beams

For angles greater than 30o please contact LFS. 10kn = 1 tonne of force


14

Capstan Eye Anchor

The Capstan Eye Anchor is for use when the transfer of load is not possible through the foot of a standard

anchor. This is usually for thin reinforced units or lightweight concrete. Reduced bond stress may need to be

considered for lightweight concrete.

The re-bar tail must be in close contact to the bottom of the hole to prevent concrete breakout when lifting.

30o

I

J

A B

C

D

E

F

G

H

Load

Group

Length

A mm

Shank Dia.

B mm

Head Dia.

C mm

Foot Dia.

D mm

Re-Bar Hole

E mm

Anchor Embedment

F mm

Overall Embedment

G mm

Anchor Recess

H mm

1.3t 65 10 19 19 10 45 75 10

2.5t 90 14 26 27 13 64 101 11

5.0t 120 20 36 42 20 88 135 15

10.0t 180 28 47 57 25 136 195 15

20.0t 250 39 70 76 37 185 265 15

Load Group

Min. Unit Thickness

mm

Mesh Reinforcement

Each Side

Reinforcement Specification

Re-Bar Dia. J mm

Unbent Re-bar Length I mm

Concrete Compressive Strength

15N/mm2 25N/mm2 35N/mm2

1.3t 80 A142 8 900 700 550

2.5t 80 A142 10 1350 1050 850

5.0t 100 A252 12 1900 1500 1200

10.0t 140 A252 20 2650 2050 1700

20.0t 160 A252 28 3750 2950 2400


15

Capstan Plate Anchor

The Capstan Plate Anchor is designed for reinforced concrete slabs too thin for a standard Capstan Anchor

which are lifted at right angles to its greatest dimension and for de-moulding panels.

The minimum panel thickness (J) is determined by the unit design by combining the anchor length, anchor head

recess and the specified cover. It is essential that not only the cover is observed but that the concrete can flow

freely under the base of the anchor to ensure corrosion resistance.

A

B

C

D x E

F

G

H

I

J A

Cover

J

L

Load

Group

Length

A mm

Shank Dia. B

mm

Head Dia. C

mm

Plate Size D x E x F

mm

Overall Embed-ment

G mm

Anchor Embed-ment

H mm

Anchor Recess

I mm

Reinforcement Bars Permissible

Loads kN

Dia. J mm Length K

mm

15N/

mm2

25N/

mm2

2.5t 55 14 26 70 x 70 x 6 66 29 11 Dia. 8 x 4 200 10 15

2.5t 120 14 26 70 x 70 x 6 131 94 11 Dia. 10 x 4 300 25 25

5.0t 55 20 36 90 x 80 x 8 70 23 15 Dia. 12 x 4 450 30 40

5.0t 65 20 36 90 x 80 x 8 80 33 15 Dia. 12 x 4 450 40 50

5.0t 110 20 36 90 x 80 x 8 125 78 15 Dia. 12 x 4 450 50 50

10.0t 115 28 47 90 x 90 x 10 130 71 15 Dia. 16 x 4 600 80 100


16

Curved Capstan Transport Anchor

The Curved Capstan Transport Anchor is specifically designed for lifting, pitching and transporting sandwich

panels.

After installing the anchor head is positioned in the centroidal axis of the panel with the foot being central in

the load bearing layer which ensures a proper load transference. Spalling of the concrete during erection and

lifting is avoided with Curved Capstan Transport Anchors. A tilting table should be used to pitch units if

produced with only a front layer on top. Using connector pins close to the anchor is advisable.

These anchors should be used in conjunction with a spreader beam.


A

B

Load Direction Load Direction

Load Group Length A mm Offset B mm Permissible

Load Kn

Min.Unit Thickness C

mm

1.3t 277 50 13 80

2.5t 268 50 25 100

5.0t 466 60 50 100

7.5t 664 70 75 120

10.0t 667 70 100 140

15.0t 825 70 150 180

20.0t 986 90 200 200

C


17

Capstan Rod Anchor

The Capstan Rod Anchor is designed to pitch and lift very thin wall panels, reinforced girders or similar types of

unit as well as masonry wall units.

The anchor consists of a ribbed steel bar with a forged Capstan lifting head. The load is transferred into the

concrete by the ribs of the steel bar.

For special fabrications the bar can be bent in an offset manner to fit units such as sandwich panels.


C

D

A

B

E F

G

Load

Group

Length

A mm

Total Embedment

B mm

Rod Embedment

C mm

Bar Diameter

D mm

Anchor Head

Dia. E mm

Minimum Panel

Thickness

F mm

Anchor Recess

G mm

Permissible

Load kN

Mesh Reinforcement Both Sides mm/

m2

2.5t 400 411 374 14 26 100 11 25 188

2.5t 520 531 494 14 26 100 11 25 188

5.0t 580 595 548 20 36 140 15 50 257

5.0t 900 915 868 20 36 140 15 50 257

7.5t 750 765 706 24 46 140 15 75 257

7.5t 1150 1165 1106 24 46 140 15 75 257

10.0t 870 870 885 28 46 160 15 100 257

10.0t 1300 1315 1256 28 46 160 15 100 257

15.0t 1080 1095 1015 34 69 200 15 150 257

15.0t 1550 1565 1485 34 69 200 15 150 257


18

Double Head Capstan Transport Anchor

The Double Head Capstan Transport Anchor has been specifically developed for use in pipe production where

anchor installation is automated. This permits high volume production by eliminating the manual operation of

fixing anchors.

The second head of the anchor assists accurate positioning and ensures perpendicular installation as it sits

tightly in the hollow of the former.

This feature also benefits the production of high volume flooring where large amounts of anchors are installed

on a regular basis. The rubber former is hard wearing and has a thread which allows quick removal and cleaning

with no requirement to remove excess concrete in the void. This anchor is lifted with the same shackle as

standard anchors.

B

A C

Load Rating 1.3t 2.5t 4.0t 5.0t

Length (A) mm

40 85 95 95

50 120 170 100

65 - - 180

100 - - -

Head Diameter (B) mm 19 26 36 36

Shank Diameter (C) mm 10 14 18 20

Load Group Length (A) mm 25N/mm2 35N/mm2 45N/mm2

1.3t

40 0.7t 0.9t 1.0t

50 1.0t 1.0t 1.0t

65 1.3t 1.3t 1.3t

100 1.3t 1.3t 1.3t

120 1.3t 1.3t 1.3t

2.5 85 2.5.t 2.5.t 2.5.t

120 2.5.t 2.5.t 2.5.t

4.0t 95 4.0t 4.0t 4.0t

170 4.0t 4.0t 4.0t

5.0t

95 4.0t 5.0t 5.0t

100 4.0t 5.0t 5.0t

180 5.0t 5.0t 5.0t

Permissible Loads for Double Head Capstan Transport Anchor

The concrete strength is for the time of first lifting.

Recess Formers

There are steel, magnetic and rubber formers available for Double Head Anchors. The steel formers are

designed for welding to the mould and have a magnetic insert to keep the anchor in place when casting.

Magnetic formers are also steel and have magnets in the base to securely attach to the formwork.

Rubber formers work in the same manner but have a metric screw thread in the base to attach through wooden

formwork for quick removal from cured concrete with a floating application.

Magnetic Former The second head sits

flush with the base of

the former.


19

Double Head Capstan Transport Anchor

Use with Hollowcore Flooring Manufacture

The Double Head Capstan Transport Anchor is a very effective method of demoulding, lifting and installation of

most types of Hollowcore flooring panels.

The anchors are installed in extruded or slip formed Hollowcore by collapsing the cores at the required lifting

points and back filling with a suitably wet mix of the same concrete to the top of the panel. Larger sizes of

cores may require the use of a Slab Cap or semi-dry mix inside the core either side of the lifting point. The

concrete should be compacted well without damaging the webs, taking care that the recess is completely

filled.

The anchor should be worked down in the poured concrete until the former is flush with the top of the panel

ensuring no possibility of air gaps and trowel around the former for a neat finish.

It is recommended that, where possible, demoulding Hollowcore should be carried out using clamps or ensuring

that the concrete is sufficiently cured to support the load required for the lift.

With most Hollowcore applications, the edge distances that are achievable are less than would be expected for

obtaining full lifting loads in unreinforced concrete. However, as the deadweight of the units are greatly

reduced by the cores or polystyrene, the loads on each anchor is reduced resulting in effective lifting with

relatively small edge distances.

Because there are large variations in the concrete mixes, reinforcement

strand patterns and lifting intentions, it is imperative to ensure that the

anchor and installation is correct for each application. LFS offer a

complete design and technical support service for customers wishing to

implement the Double Head Anchor system into their production. This

service includes load calculations, anchor specification, training and an

on-site service to test the load capabilities in concrete panels. Our test

unit has a 25.0t capacity for both proof and destructive loading of

anchors. This testing includes both initial set up and periodically

arranged visits to monitor the continuity of achievable loads. This test-

ing is backed up by a full report of results and technical support for

customers working in partnership with LFS.

Lifting with Double Head Anchors

The Double Head Anchor uses the same shackle as standard Capstan Anchors. LFS recommend that clients using

this system should fully convey the permitted lifting design to their customers, for example, many installations

are intended for final positioning only. It is imperative that the installation teams are fully aware of such

arrangements.

When all site lifting requires use of Double Head

Anchors, the use of a Safety Lifting Rig is

recommended. The rig is constructed as shown

opposite and is designed to offer complete

security with safety chains under the panels and

exact load distribution between each anchor by

use of an equalising plate.

Safety Lifting Rigs are designed for panels up to

10.0t and can be manufactured specific to

customer requirements. These are supplied with

test certificates and are available for both sale

and hire at daily and weekly rates.

Please contact LFS for all sale, hire and technical

information.


20

Capstan Lifting Shackles

The Capstan Shackle is the attachment used for lifting, turning and transportation of concrete units with the

corresponding anchors cast in. This is a manually operated device which is available in 1.3t—32.0t load groups.

Each shackle is proof loaded to twice safe working load at a recognised independent test institution and

supplied certified and index numbered for traceability when supplied new. All health and safety regulations

and suitable risk assessments should be observed when using LFS lifting shackles and site lifting equipment.

Load Group Overall Length (mm) Crane Hole Width

(mm)

Crane Hole Height

(mm)

Anchor Aperture

(mm)

1.3t 188 40 68 11

2.5t 230 50 86 16

4.0t - 5.0t 283 70 88 21

7.5t - 10t 401 90 115 30

15.0t - 20.0t 506 140 135 41

32.0t 680 160 189 52

Using Capstan Lifting Shackles

Engaging

Select the correct shackle and place the head opening over the anchor

and lower the weighted lip down onto the concrete as show in Fig. 1.

The shackle will now be ready for use.

Lifting

Once the shackle is engaged the unit can be lifted. The direction of lip

must always be in the direction of the lift as this locks the shackle under

load. The shackle is suitable for axial / angled lifting, turning, pitching

and swivelling of units providing the anchors have been suitably

reinforced. Please observe the maximum lifting angles per the design

which should be supplied by the manufacturer or engineer.

Lift Direction

Lift Direction

Weighted lip

must always

be in the load

direction

Fig

Releasing

Once the lift has been completed and the load has been removed the

shackle can be released by moving the lip towards the handle. Always

ensure that the shackle is clear of the recess before withdrawing the

crane.

Maintenance

Shackles should be checked for damage prior to each lift and inspected

by a qualified engineer every six months and recorded appropriately.

The maximum life of a shackle under constant use is seven years

provided the limited dimensions are not exceeded. Any modifications or

repairs are strictly prohibited.

Load Group Max Aperture

Width (mm)

Min. Aperture

Thickness (mm)

1.3t 13 5.5

2.5t 18 6

4.0t - 5.0t 25 8

7.5t - 10t 32 12

15.0t - 20.0t 46 18

32.0t 58 24


21

Capstan Recess Formers

The Capstan Anchor must be installed in the unit using the correct former for the anchor and application. This

will provide quick and secure installation and form a recess for the shackle. Only the correct former will fit the

anchor and the load group is marked on each one. The former can be used by floating in the concrete or by

bolting through the formwork or by magnets. The formers are available in recyclable rubber and steel in load

groups from 1.3t to 32.0t.

Rubber Formers

The rubber former is resistant to oil and retains its shape in temperatures up to 120 oC. The former is reusable

many times if correctly used and cleaned after each use. Mould oil should be applied to the former before the

anchor is inserted.

Short sided formers are also available and are for use when lifting thin panels.

Floated Installation

With this application the concrete is poured first and the anchor is installed once the fill level has been

achieved. The anchor is inserted into the concrete until the bottom of the former is touching the concrete

which should then be vibrated until the top is flush with the concrete. At its final position the anchor much be

perpendicular to the base of formwork. It is advisable to use a fixing screw and a wooden block to ensure the

former is tightly shut to prevent any concrete ingress.

Removal of Former

When the concrete has cured the former is simple to remove. If a fixing screw has been used, remove this first

and, with two pieces of reinforcement bar, use a scissors action to release the former from around the anchor

and lift the former clear. If there is any excess concrete in the recess this should be removed before lifting.

Installation with Fixing Screw

When installing through wooden formwork a fixing screw or nut is required. If the

sides of formwork can be removed in a horizontal direction then a fixing screw

can be used. When this is not possible then a separate fixing nut and screw is

required. These are available in all load groups.


22

Steel Recess Formers

The Capstan Anchor can be installed in metal formwork by the use of a steel formers.

These is used where the lifting anchors are not accessible when casting. They are

available in load groups from 1.3t to 20.0t. All steel formers are zinc plated for

corrosion resistance.

Using Steel Formers

The former is first attached to the mould by either its thread or by welding. The

anchor is then placed in the centre of the former and the rubber sleeve put around

the shank and pushed into the void, holding it tightly in position. The former and

sleeve should be coated in mould oil before casting. When the unit is struck the

former remains on the mould with the anchor and sleeve coming away with the unit.

The sleeve should then be removed and cleaned for reuse.

When installing using steel formers, particularly when the anchors are horizontal to the formwork, provisions

should be made to ensure it remains fixed during pouring. This can be done by tying the anchor to the form-

work or by using spacers.

Magnetic Formers

The steel formers are also available with magnets installed in the base to allow the attachment of anchors at

any required point in a steel mould. These have either three or six magnets in the base and should be chosen

dependant on the adhesion required when casting. Larger units with a heavy concrete flow should use the

higher adhesion. The rubber sleeve should be used in the same manner as standard steel formers.

Anchor Load

(t) Adhesion (kp) Ø (mm)

Concrete

Cover (mm)

1.3 50 60 10

2.5 50 74 11

3.5 100 74 11

5.0 50 94 15

5.0 100 94 15

5.0 120 94 15

5.0 180 94 15

10.0 50 118 15

10.0 100 118 15

10.0 120 118 15

10.0 180 118 15


23

Utility Anchors

The Utility Anchor is designed for reinforced or unreinforced concrete units and are especially useful for cover

slabs, pipes and culverts or any application where the construction site can benefit from an approved and

tested lifting anchor that can be used with a crane hook and no other special lifting device.

Benefits of Utility Anchors

• Economical alternative for de-mould, handling and installing precast units.

• Versatile system that can be used for most types of precast unit.

• Lifting capacity of up to 7500kg.

• Easy to install.

Utility Anchor Components

Fixing Screw Wet Setting Plate


24

Utility Anchors

Installation Instructions for Precast Units

Placement of Utility Anchors

This can vary dependant on the structural shape of the units

and the manufactures or engineer’s preferences. Utility

Anchors are not designed for thin edge applications. Always

ensure that the minimum edge distances are maintained and

that lifting design takes into consideration the minimum

strengths as noted in the capacity chart along with any other

dynamic forces.

It is recommended that the formers should always be placed in

line with the load direction of lifting chains.

Typical Installations

Wet Setting

1) Assemble the anchor, former and

either a Fixing Screw or Wet

Setting Plate

2) If required, use grease or duct

tape for an extra seal for the

cavity in the former.

3) Work the assemble into the wet concrete until the top surface of the former is flush to the concrete.

Ensure that any air bubbles are removed before setting is complete.

Fixing Screw Setting

1) Assemble the anchor and former.

2) If required, use grease or duct tape for an extra seal for the cav-

ity in the former.

3) Drill a hole in the formwork at the installation point and attach

the assembly with the fixing screw and the thread cast into the

former.

4) Ensure that any air bubbles are removed before setting is

complete via vibrating poker or similar method.

Fixing Plate Setting

1) Assemble the anchor and former.

2) If required, use grease or duct tape to seal the cavity in the

former.

3) Screw or nail the fixing plate to the formwork at the installation

point and place the assembly on the pins and push firmly into

place.

4) Ensure that any air bubbles are removed before setting is

complete via vibrating poker or similar method.


25

Utility Anchors


Product

Code A B C

Tension

SWL Kg

Shear SWL

Kg

Min Panel Thickness

mm

Min Edge Distance

mm

LF01UA08135 80 134 11 800 1300 102 160

LF01UA20095 95 152 11 1800 2500 114 190

LF01UA25120 120 181 11 2000 3000 140 240

LF01UA35170 170 238 11 2500 3500 203 340

LF01UA14080 80 135 17 1400 1800 102 160

LF01UA35095 95 173 17 3500 5000 114 190

LF01UA50120 120 188 17 5000 7000 140 240

LF01UA75170 170 254 17 7500 8500 203 340

Utility Anchor Former

Product Code C D E

UAF200 203 76 89


26

Utility Anchors


Angled Lifting

The safe working load figures on Page 25 are based on straight chains providing a pure tension lift. For angled

lifting applications, please reduce the design lifting capacity by the figures quoted in the table below. Dynamic

factors for transport will also apply as detailed on Page 3 of this manual.

Sling Angle Load Factors

Sling Angle β 120o 105o 90o 75o 60o 45o 30o 15o

Load Factor 2 1.64 1.41 1.26 1.16 1.08 1.04 1.01

Adjusting Loads for Concrete Strength

The safe working loads detailed on Page 25 are based on a concrete compressive strength of 25N/mm2 and is

quoted for tensile applications. Please consult LFS for any special requirements in shear below this strength.

To convert the allowable load in tension for an unreinforced anchor from a concrete strength of 25N/mm2 to a

greater or lesser concrete strength, multiply the safe working load at 25N/mm2 by the applicable factor listed

below.

Concrete Strength Adjustment Factors

Increased Concrete Strength

30N/mm2 Multiply SWL by 1.13


Increased Concrete Strength




27

Lifting Sockets and Inserts

Flat End and Cylindrical Lifting Sockets provide simple lifting and transporting for most kinds of precast concrete units, particularly when casting into thin concrete panels. Flat End Lifting Inserts are available in both high grade zinc plated carbon steel and 303 grade stainless with metric threads. Cylindrical Sockets are also available in both materials and also Rd and metric type threads. All installation instructions are based on a 2:1 concrete safety factor at a strength of 15N/mm2 and 3:1 for steel inserts and are tested for by a recognised institution. Flat End and Cylindrical Lifting Sockets can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site.

Plastic Stopper Caps are also available to protect threads from weathering.

Please contact LFS with any technical queries.

F

E

G

H

Cylindrical Lifting Sockets Flat End Lifting Sockets

Axial Load

Rating

Size (Thread x

Length A)

Overall Diameter

(B)

Rebar Hole

Size (C)

Usable Thread

Length (D) Load Rating

Size (Thread x

Length E)

Overall Diameter

(F)

Rebar Hole

Size (G)

Usable Thread

Length (H)

500kg M/Rd 12 x 40 15 8 22 500kg M12 x 60 15 10 22

500kg M/Rd 12 x 48 18 10 25 1200kg M16 x 80 21 13 27

1200kg M/Rd 16 x 58 21 13 27 1200kg M16 x 100 21 13 27

2000kg M/Rd 20 x 70 27 16 35 2000kg M20 x 95 27 16 35

2500kg M/Rd 24 x 80 31 17 43 2500kg M24 x 110 31 18 43

4000kg M/Rd 30 x 101 39 22 56 4000kg M30 x135 39 22 56

6300kg M/Rd 36 x 125 47 25 69 4000kg M30 x150 38 22 56

8000kg M/Rd 42 x 140 54 30 80 - - - -

12500kg M/Rd 52 x 170 72 40 97 - - - -

Anchor Spacing

The following should be observed for all anchor installations and should also have sufficient

reinforcement as detailed on the next page. C/L

A

B/2

B

A 3xA

B

B/2

Axial Load

Rating Size

Edge Distance

A mm

Edge Distance

B mm

500kg M/Rd 12 37 300

1200kg M/Rd 16 40 400

2000kg M/Rd 20 50 550

2500kg M/Rd 24 60 600

4000kg M/Rd 30 70 650

6300kg M/Rd 36 100 800

8000kg M/Rd 42 120 1000

12500kg M/Rd 52 138 1200

A

Plastic Stopper to

prevent concrete

ingress

D

C

B


28


Axial Lifting

All Sockets and Inserts must be reinforced for lifting with BSt500s reinforcement bar as per the table and sketches below. Reinforcement around the anchor can be in the form two layers of mesh or a re-bar cage befitting the unit as specified by the design engineer. The socket reinforcement can be in the form of a 60º angled bar (1) or with parallel ‘U’ bars (2). For slab type units the reinforcement can be cranked down from the ‘U’ bar to fit the thickness of the panel (3), straight bars must not be used and extra bars must be laid

across the flats of the bar. Mesh reinforcement is essential.

Axial Load

Rating Size

Leg Length

(L1) mm

Leg Length

(L2) mm

Bar Diameter

(BD) mm

Internal Diameter

(ID1) mm

Min. Mesh Reinforcement

(Two Layers)

500kg M/Rd 12 230 190 6 24 Q131

1200kg M/Rd 16 320 280 10 40 Q131

2000kg M/Rd 20 440 380 12 48 Q131

2500kg M/Rd 24 475 410 12 56 Q188

4000kg M/Rd 30 650 570 16 64 Q188

6300kg M/Rd 36 820 720 20 140 Q188

8000kg M/Rd 42 850 730 25 175 Q188

12500kg M/Rd 52 1200 1020 25 196 Q188

60º

L1

BD ID1

(1)

(3)

L3

For angled lifts it is essential to reinforce the socket to ensure the load is distributed into the concrete unit, for angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel as in (5) with a re-bar hanger as detailed in (3). If this pattern is used straight bars should be laid over the

cranked bars at right angles. The axial pull reinforcement must be in contact with the base of the socket (6).

Axial Load

Rating Size

Leg Length

(L3) mm

Internal Diameter

(ID2)

Bar Diameter

(BDH) mm

500kg M/Rd 12 150 24 6

1200kg M/Rd 16 200 32 10

2000kg M/Rd 20 300 32 12

2500kg M/Rd 24 300 40 14

4000kg M/Rd 30 400 48 16

6300kg M/Rd 36 550 56 20

8000kg M/Rd 42 600 64 25

12500kg M/Rd 52 750 140 28

(5)

20º

10mm B β

(6)

(2)

ID1

BD

L2

30º

ID2

BDH L3

(4)


29


Pitching / Turning

Lifting Sockets and Inserts are designed to be used in thin panel applications for turning through 90º from horizontal to upright. All Sockets and Inserts must be reinforced for lifting with BSt500s reinforcement bar as

per the table and must include the extra reinforcement as detailed below.

Axial Load

Rating Size

Leg Length

(L1) mm

Leg Length

(L2) mm

Bar Diameter

(BD1) mm

Bar Diameter

(BD2) mm

Internal Diameter

(ID1) mm

Internal Diameter

(ID2) mm

Height

(h) mm

500kg M/Rd 12 270 280 6 8 24 24 35

1200kg M/Rd 16 350 400 8 12 32 32 49

2000kg M/Rd 20 500 500 10 14 40 40 64

2500kg M/Rd 24 520 560 12 14 48 48 75

4000kg M/Rd 30 580 590 12 16 48 48 92

6300kg M/Rd 36 700 700 14 16 56 56 118

8000kg M/Rd 42 850 860 16 20 64 64 143

12500kg M/Rd 52 950 1000 20 20 140 140 174

Lift Direction

BD2

BD1

ID1

15º

ID2

L2

H

L1

For turning or erecting units through 90º as detailed below, only half the weight of the unit is being lifted and therefore there is no reduction in the safe working load of the anchor and the same permissible loads and standard sling angle reduction factors apply. However, for lifting at these angles the permissible load per anchor is half the axial load rating. Sling angle factors apply to the chains in the same manner as axial lifting.

Combination Lifting Loops or Swivel Eyes should always be used for turning or pitching units.

z

z

β

Load Direction


30

Wavy Tail Lifting Anchors

Wavy Tail Anchors are a quick to install and versatile anchor for lifting most types of precast units. The

anchor can be used to lift at compressive strengths of 15N/mm2 and above without any further reinforcement providing the unit has sufficient BSt 500 mesh or re-bar cage befitting the unit as specified by the design engineer. The body of the insert is available in high grade carbon steel with either yellow zinc plated for Rd threads or white zinc plated for metric threads. They are available with 12mm to 52mm threads with the re-

bar tail swaged to the socket. Stainless Steel sockets and re-bar tails are available to special order.

All installation instructions are based on a 2:1 concrete safety factor at a strength of 15N/mm2 and 3:1 for

steel inserts and are tested by a recognised institution.

Wavy Tails can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are also available to protect threads from weathering. There are two standard lengths of rebar tail available, both anchors are designed for axial and angled lifts of β ≤ 60º (1) and the long anchors also permit the turning of units with the correct

reinforcement. Please contact LFS with any technical queries

D

A

B

C

E

F

Axial Load

Rating Size Type

Length A

(mm)

Socket

Length (B)

Usable Thread

Length (C)

Overall Diameter

(D) mm

Wave Diameter

(E) mm

Bar O/D

(F) mm

500kg M/Rd12 Short 108 40 22 15 20 8

Long 137 40 22 15 20 8

1200kg M/Rd16 Short 167 58 27 21 30 12

Long 216 58 27 21 30 12

2000kg M/Rd20 Short 187 70 35 27 35 16

Long 257 70 35 27 35 16

2500kg M/Rd24 Short 240 80 43 32 40 16

Long 360 80 43 32 40 16

4000kg M/Rd30 Short 300 101 56 38 50 20

Long 450 101 56 38 50 20

6300kg M/Rd36 Short 380 110 69 48 62 25

Long 570 110 69 48 62 25

8000kg M/Rd42 Short 450 140 80 54 70 28

Long 620 140 80 54 70 28

12500kg M/Rd52 Short - - - - - -

Long 880 170 100 70 80 28

Installation – Long Wavy Tails

To ensure a safe lift, the following edge distances and mesh requirements must be observed.

Axial Load

Rating Size

Edge Distance

(A) mm

Edge Distance

(B) mm

Anchor Spacing

(C) mm

Min. Mesh

Req.

500kg M/Rd 12 37 150 300 Q131

1200kg M/Rd 16 40 200 400 Q131

2000kg M/Rd 20 50 275 550 Q131

2500kg M/Rd 24 60 300 600 Q188

4000kg M/Rd 30 70 325 650 Q188

6300kg M/Rd 36 100 400 800 Q188

8000kg M/Rd 42 120 500 1000 Q188

12500kg M/Rd 52 140 600 1200 Q188

C/L

A

C

B

β

(1)


31

Installation – Long Wavy Tails

For angled lifts it is essential to reinforce the socket to ensure the load is distributed into the concrete unit, for angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel as in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be reinforced with BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum

of β = 30º (1).

Axial Load Rating Size Hanger Diameter

(BDH) mm (2) Leg Length (H) mm (2)

Internal Diameter

(ID) mm (2)

500kg M/Rd 12 6 150 24

1200kg M/Rd 16 8 200 32

2000kg M/Rd 20 8 300 32

2500kg M/Rd 24 10 300 40

4000kg M/Rd 30 12 400 48

6300kg M/Rd 36 14 550 56

8000kg M/Rd 42 16 600 64

12500kg M/Rd 52 20 750 140

β

20º

(1)

10mm

30º

ID

BDH

H

Pitching / Turning

Long Wavy Tails can be used in thin panel applications for turning through 90º from horizontal to upright.

Anchors must be reinforced for lifting with BSt500s reinforcement bar hangers as per the table below.

BD2

BD1

ID1

15º

ID2

L2

L1

H

Axial Load

Rating Size

Leg Length

(L1) mm

Leg Length

(L2) mm

Bar Diameter

(BD1) mm

Bar Diameter

(BD2) mm

Internal Diameter (ID1)

mm


mm Height (h) mm

500kg M/Rd 12 270 280 6 8 24 24 35

1200kg M/Rd 16 320 400 8 12 32 32 49

2000kg M/Rd 20 490 490 10 12 40 40 64

2500kg M/Rd 24 520 550 12 14 48 48 75

4000kg M/Rd 30 570 580 12 16 48 48 92

6300kg M/Rd 36 690 700 14 16 56 56 118

8000kg M/Rd 42 830 850 16 20 64 64 143

12500kg M/Rd 52 930 1000 20 20 140 140 174


32

Pitching / Turning (Cont…)

For turning units through 90º, as detailed below, only half the weight of the unit is being lifted and therefore there is no reduction in the safe working load of the anchor. The same permissible loads and standard sling angle reduction factors apply. However, for lifting at these angles the permissible load per anchor is half the

axial load rating. Sling angle factors apply to the chains in the same manner as axial lifting.

z

z

β

Installation - Short Waved Anchors

For angled lifts is it is essential to reinforce the socket to ensure the load is distributed into the concrete unit, for angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be reinforced with BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum

of β = 30º (1).

Axial Load

Rating Size

Edge Distance

(A) mm

Edge Distance

(B) mm

Anchor Spacing (C)

mm

Min. Panel

Depth (D) mm

Min. Mesh

Req.

Hanger Diameter

(BDH)

mm (2)

Leg Length (H)

mm (2)

Internal Diameter (ID)

mm (2)

500kg M/Rd 12 95 100 200 125 Q131 6 150 24

1200kg M/Rd 16 135 140 260 190 Q131 8 200 32

2000kg M/Rd 20 170 170 350 215 Q131 8 300 32

2500kg M/Rd 24 220 220 440 270 Q188 10 300 40

4000kg M/Rd 30 275 275 550 335 Q188 12 400 48

6300kg M/Rd 36 300 300 600 420 Q188 14 550 56

8000kg M/Rd 42 400 400 800 490 Q188 16 600 64

B

C

A

D 30º

ID

BDH

H

(2)

β

20º

(1)

10mm


33

LFS Stab Anchor

LFS Stab Anchors are especially suitable for installation in slender concrete units with thin walls such as garages, transformer stations, shaft rings etc. The anchor can be used to lift at compressive strengths of 15N/mm2 and above without any further reinforcement providing the unit has a sufficient BSt500 mesh or re-bar cage befitting the unit as specified by the design engineer. The body of the insert is available in either yellow zinc plated for Rd threads or clear zinc plated for metric threads and is supplied with 12mm to 52mm threads with the re-bar tail swaged to the socket. Stainless Steel sockets and re-bar tails are available to special order. All installation instructions are based on a 2:1 concrete safety factor

at a strength of 15N/mm2 and 3:1 for steel inserts and are tested for by a recognised institution.

Stab Anchors can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are also available to protect threads from weathering. The standard length of rebar tails available are detailed below, however special lengths and bent bars are available on request. The anchors designed are for axial and angled lifts of

β ≤ 60º (1) and the turning of units with the correct reinforcement.


Axial Load Rating Size

Overall Length (A)

mm

Socket Length

(B) mm

Usable Thread

(C) mm

Overall Diameter (D)

mm

Re-Bar Diameter (F)

mm

500kg M/Rd 12 190 40 22 16 8

1200kg M/Rd 16 250 58 27 21.5 12

2000kg M/Rd 20 350 70 35 27 16

2500kg M/Rd 24 400 80 43 32 16

4000kg M/Rd 30 500 101 56 38 20

4000kg M/Rd 30 900 101 56 38 20

6300kg M/Rd 36 650 110 69 48 25

6300kg M/Rd 36 900 110 69 48 25

8000kg M/Rd 42 800 140 80 54 28

12500kg M/Rd 52 900 170 90 70 32

A

F

D

B

C

Installation – Stab Anchors


Axial Load

Rating Size

Edge Distance

(A) mm

Edge Distance

(B) mm

Anchor Spacing

(C) mm Min. Mesh Req.

500kg M/Rd 12 30 150 300 Q131

1200kg M/Rd 16 40 200 400 Q131

2000kg M/Rd 20 55 275 550 Q131

2500kg M/Rd 24 62.5 300 600 Q188

4000kg M/Rd 30 70 350 650 Q188

6300kg M/Rd 36 100 400 800 Q188

8000kg M/Rd 42 120 500 1000 Q188

12500kg M/Rd 52 140 600 1200 Q188

C/L

A C

B

β

(1)


34

Installation – Stab Anchors (Cont…)

For angled lifts is it is essential to reinforce the socket to ensure the load is distributed into the concrete unit, for angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel as in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be reinforced with BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum

of β = 30º (1).

Axial Load Rating Size Hanger Diameter (BDH) mm (2) Leg Length (H) mm (2) Internal Diameter (ID) mm (2)

500kg M/Rd 12 8 150 24

1200kg M/Rd 16 8 200 32

2000kg M/Rd 20 12 300 32

2500kg M/Rd 24 12 300 40

4000kg M/Rd 30 12 400 48

6300kg M/Rd 36 16 550 56

8000kg M/Rd 42 16 600 64

12500kg M/Rd 52 20 750 140

β

20º 10mm

(1)

30º

ID

BDH

H

Pitching / Turning

For turning units through 90º, as detailed below, only half the weight of the unit is being lifted and therefore there is no reduction in the safe working load of the anchor and the same permissible loads and standard sling angle reduction factors apply. However, for lifting at these angles the permissible load per anchor is

half the axial load rating. Sling angle factors apply to the chains in the same manner as axial lifting.

BD2

BD1

ID1

15º

ID2

L2

L1

H

z z

β

Axial Load

Rating Size

Leg Length

(L1) mm

Leg Length

(L2) mm

Bar Diameter

(BD1) mm

Bar Diameter

(BD1) mm

Internal Diameter

(ID1) mm


mm Height (h) mm

500kg M/Rd 12 270 285 6 8 24 24 35

1200kg M/Rd 16 350 400 8 12 32 32 49

2000kg M/Rd 20 500 500 10 14 40 40 64

2500kg M/Rd 24 520 560 12 14 48 48 75

4000kg M/Rd 30 580 590 12 16 48 48 92

6300kg M/Rd 36 700 700 14 16 56 56 118

8000kg M/Rd 42 850 860 16 20 64 64 143

12500kg M/Rd 52 950 1000 20 20 140 140 174


35

Ripped Foot Anchor

Ripped Foot Anchors are especially suitable for slab type panels or beams. The anchor can be used to lift at compressive strengths of 15N/mm2 and above without any further reinforcement providing the unit has sufficient BSt500 mesh or re-bar cage befitting the unit as specified by the design engineer. The body of the insert is available in either yellow galvanized for Rd threads or clear galvanized for metric threads. They are supplied with 12mm to 52mm threads and the re-bar tail is swaged to the socket. Stainless Steel sockets and re-bar tails are available to special order. All installation instructions are based on a 2:1 concrete safety

factor at a strength of 15N/mm2 and 3:1 for steel inserts and are tested for by a recognised institution.

Ripped Foot Anchors can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are also available to protect threads from weathering. The standard lengths of rebar tails available are detailed below however special lengths and bent bars are available on request. The anchors designed are for axial and angled lifts of β ≤ 60º

(1) and the turning of units with the correct reinforcement.


Axial Load Rating Size Overall Length

(A) mm

Socket Length

(B) mm

Usable Thread

(C) mm

Overall Diameter

(D) mm

Re-Bar Diameter

(E) mm

500kg M /Rd12 70

40 22 16 8 500kg M /Rd12 100

500kg M /Rd12 136

500kg M /Rd12 174

1200kg M /Rd16 70

58 27 21.5 12 1200kg M /Rd16 150

1200kg M /Rd16 195

1200kg M /Rd16 260

2000kg M /Rd20 90

70 35 27 16 2000kg M /Rd20 190

2000kg M /Rd20 235

2000kg M /Rd20 300

2500kg M /Rd24 105

80 43 32 20 2500kg M /Rd24 210

2500kg M /Rd24 260

2500kg M /Rd24 335

4000kg M /Rd30 125

101 56 38 20 4000kg M /Rd30 270

4000kg M /Rd30 390

4000kg M /Rd30 510

6300kg M /Rd36 330

110 69 48 25 6300kg M /Rd36 490

6300kg M /Rd36 640

8000kg M /Rd42 450

140 80 54 28 8000kg M /Rd42 590

8000kg M /Rd42 770

12500kg M /Rd52 730 170 90 70 28

12500kg M /Rd52 360

C/L

A C

B

β

(1) B C

D

A

E


36

Installation - Ripped Foot Anchors

For angled lifts is it is essential to reinforce the socket to ensure the load is distributed into the concrete unit. For angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be reinforced with BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum

of β = 30º (1).

B

C

A D

30º

ID

BDH

(2) 20º 10

mm

β (1)

Pitching / Turning

For turning units through 90º, as detailed below, only half the weight of the unit is being lifted and therefore there is no reduction in the safe working load of the anchor and the same permissible loads and standard sling angle reduction factors apply. However, for lifting at these angles the permissible load per anchor is

half the axial load rating. Sling angle factors apply to the chains in the same manner as axial lifting.

Axial Load

Rating Size

Leg Length

(L1) mm

Leg Length

(L2) mm

Bar Diameter

(BD1) mm

Bar Diameter

(BD1) mm

Internal Diameter

(ID1) mm

Internal Di-ameter (ID2)

mm Height (h) mm

500kg M/Rd 12 270 285 6 8 24 24 35

1200kg M/Rd 16 350 400 8 12 32 32 49

2000kg M/Rd 20 500 500 10 14 40 40 64

2500kg M/Rd 24 520 560 12 14 48 48 75

4000kg M/Rd 30 580 590 12 16 48 48 92

6300kg M/Rd 36 700 700 14 16 56 56 118

8000kg M/Rd 42 850 860 16 20 64 64 143

12500kg M/Rd 52 950 1000 20 20 140 140 174

Axial Load

Rating Size

Edge Distance

(A) mm

Edge Distance

(B) mm

Anchor Spacing

(C) mm

Min. Mesh

Req.

Hanger Diameter

(BDH) mm (2)

Leg Length

(H) mm (2)

Internal Diameter

(ID) mm (2)

500kg M/Rd 12 30 200 300 Q131 8 150 24

1200kg M/Rd 16 40 250 400 Q131 8 200 32

2000kg M/Rd 20 45 300 550 Q188 12 300 32

2500kg M/Rd 24 50 350 600 Q188 12 300 40

4000kg M/Rd 30 60 400 650 Q211 12 400 48

6300kg M/Rd 36 100 450 800 Q211 16 550 56

8000kg M/Rd 42 120 500 1000 Q211 16 600 64

12500kg M/Rd 52 140 600 1200 Q211 20 750 140

BD2

BD1

ID1

15º

ID2

L2

L1

H

z z

β

Minimum thickness of precast unit:

D = Anchor Length + Cover to Anchor Foot + Specified Concrete Cover


37

Hex Foot Anchor

Hex Foot Anchors are especially suitable for slab type panels. The anchor can be used to lift at compressive strengths of 15N/mm2 and above without any further reinforcement, providing the unit has sufficient BSt500 mesh or a re-bar cage befit-ting the unit as specified by the design engineer. The product is manufactured from a solid steel blank and provides both effective transmission of lifting forces and extremely high torque loads when used as a fixing socket . Stainless Steel sockets are available to special order. All installation instructions are based on a 2:1 concrete safety factor at a strength of 15N/mm2 and 3:1 for steel inserts and are tested by a

recognised institution.

Hex Foot Anchors can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps to protect threads from weathering are also available. The anchors designed are for axial and angled lifts of β ≤ 30º (1) and the turning of certain units with the correct reinforcement. Hex Foot Anchors can also be used in beams with

additional reinforcement.


A

C

B

Axial Load Rating Size Length (A) mm Usable Thread (B) mm Overall Diameter (C) mm

500kg M/Rd 12 60 29 17

1200kg M/Rd 16 80 37 21

2000kg M/Rd 20 100 50 27

2500kg M/Rd 24 115 65 31

4000kg M/Rd 30 150 75 39

Installation - Hex Foot Anchors

For angled lifts it is essential to reinforce the socket to ensure the load is distributed into the concrete unit. For angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel as in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be

BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum of β = 30º (1).

Axial Load

Rating Size

Edge Distance

(A) mm

Edge Distance

(B) mm

Anchor Spacing

(C) mm

Min. Mesh

Req.

Hanger Diameter

(BDH) mm (2)

Leg Length (H)

mm (2)


mm (2)

500kg M/Rd 12 105 200 300 Q131 8 150 24

1200kg M/Rd 16 120 260 400 Q131 8 200 32

2000kg M/Rd 20 190 350 550 Q188 12 300 32

2500kg M/Rd 24 210 440 600 Q188 12 300 40

4000kg M/Rd 30 250 400 650 Q211 12 400 48

30º

ID

BDH

H

(2)

20º 10mm

β (1)

B

C

A D


38

Flat Steel Anchors

Flat Steel Anchor provide simple lifting and transporting for many kinds of precast concrete units, particularly when casting into thin concrete slabs. Flat Steel Anchors are available in both high grade zinc plated carbon steel and 304 Grade Stainless Steel with both Metric and Rd type threads. All installation instructions are based on a 2:1 concrete safety factor at strength of 15N/mm2 and 3:1 for steel inserts which are tested by a

recognised institution.

Flat Steel Anchors can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are available to protect threads from

weathering. Please contact LFS with any technical queries

Axial Load

Rating

Thread

Size

Overall Height (A)

mm

Socket Height (B)

mm

Plate Width (C)

mm

Plate Width

(D) mm

Plate Thickness

(E) mm

Socket Diameter

(F) mm

500kg M/Rd 12 30 22 25 35 3 16

1200kg M/Rd 16 35 27 35 50 3 21

2000kg M/Rd 20 47 35 45 60 5 27

2500kg M/Rd 24 54 43 60 80 5 32

4000kg M/Rd 30 72 56 80 100 6 38

6300kg M/Rd 36 80 69 100 130 6 48

8000kg M/Rd 42 98 80 130 130 8 54

12500kg M/Rd 52 120 97 130 150 8 70

A

C

B

D

E

F

Installation Instructions

The following should be observed for all anchor installations and should also have the specific pattern of

reinforcement as detailed in (1) and dimensioned per the table below.

Axial Load

Rating Size

Edge Distance (A)

mm

Edge Distance (B)

mm

Anchor Spacing (D)

mm

Min. Panel Depth (D)

mm

Min. Mesh

Req.

Reinf. Dim.

(A)

Reinf. Dim.

(B)

Reinf. Dim.

(C)

Bar Diameter

(D)

500kg M/Rd 12 180 180 350 70 Q131 250 60 60 6

1200kg M/Rd 16 250 250 500 85 Q131 420 90 70 8

2000kg M/Rd 20 300 300 600 100 Q188 640 90 80 8

2500kg M/Rd 24 400 400 800 115 Q188 640 90 80 10

4000kg M/Rd 30 500 500 100 140 Q221 830 90 100 12

6300kg M/Rd 36 650 650 130 160 Q221 1140 140 120 14

8000kg M/Rd 42 650 650 130 175 Q513 1250 140 120 16

12500kg M/Rd 52 750 750 150 215 Q513 1530 140 150 20

The minimum panel thickness is determined by taking the conditions of use as a basis, according to DN 0145 Table 10, line 1 and section 13.2. For other applications and environmental conditions, the concrete cover must be increased and hence enlarging the panel thickness as shown in Fig. 3 (D). When making a recessed installation with the Plastic or Magnetic Nailing Plate (4) the minimum panel thickness must be increased by

the depth of the recess.

Important – Crossed bars (2) are required for M/Rd 24 threads and above and reinforcement should be wired

either side of the socket to ensure close contact with the plate for all sizes.

Recess

Concrete

Cover

(2)

30º

A

B

C (1)

D

B

C

D

A

(3)

(4)


39

Angled Lifting

For angled lifts is it is essential to reinforce the socket to ensure the load is distributed into the concrete unit. For angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel as in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be reinforced with BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum

of β = 30º.

Axial Load

Rating Size

Edge Distance

(A) mm

Edge Distance

(B) mm

Anchor Spacing

(C) mm Min. Mesh Req.

Hanger Diameter (BDH)

mm (2)

Leg Length (H)

mm (2)


mm (2)

500kg M/Rd 12 30 200 300 Q131 8 150 24

1200kg M/Rd 16 40 250 400 Q131 8 200 32

2000kg M/Rd 20 45 300 550 Q188 12 300 32

2500kg M/Rd 24 50 350 600 Q188 12 300 40

4000kg M/Rd 30 60 400 650 Q211 12 400 48

6300kg M/Rd 36 100 450 800 Q211 16 550 56

8000kg M/Rd 42 120 500 1000 Q211 16 600 64

12500kg M/Rd 52 140 600 1200 Q211 20 750 140

30º

ID

BDH

H

(2)

Position of

Reinforcement.

Close contact is

essential

β (1)

20º

Pitching / Turning

When lifting or turning in shear force it is essential to reinforce with mesh, crossed bars and angled lifting reinforcement bars as detailed below. The safe working load of the anchor in this pattern is half that of the

safe working load.


40

Accessories for Threaded Inserts

When using the LFS Threaded Insert system they must be correctly fixed to the formwork to ensure they are

held firmly and in the correct position when pouring concrete.

Plastic Nailing Plates

For use with wooden formwork and are simply nailed to the mould in the

correct position and the anchor screwed on. For security when pouring, it is

advisable to tie the anchor into the mesh or re-bar cage. These are a short

term re-usable item and provide a cost effective solution. They are

available in M12 to M52 threads.

Steel Nailing Plates

For use with wooden formwork and are simply nailed to the mould in the

correct position and the anchor screwed on. For security when pouring, it is

advisable to tie the anchor into the mesh or re-bar cage. These should be

removed from the unit, and cleaned for re-use. They are available in M12 to

M52 threads.

Magnetic Nailing Plates

For use with steel formwork and are attached by magnetic adhesion to the

mould. The magnetic former is placed in the correct position and the anchor

screwed on. For security when pouring, it is advisable to tie the anchor into

the mesh or re-bar cage. These should be removed from the unit, and

cleaned for re-use. They are available in M12 to M52 threads.

Plastic Sealer Caps

These are used to protect threads from corrosion when units are being

stored. These are available in M12 to M52 threads.

The formers create a recess depths of 10mm for M12—M20 threads, 12mm for M24-M36 and 15mm for M42 and

M52. All metric threaded formers are compatible with Rd threaded inserts.

Removal Tool for Steel Formers

The steel formers are removed from the mould using a square headed tool.


41

Lifting Loops

Lifting Loops are a cost effective method of lifting most types of precast concrete units with all types of

threaded lifting devices.

They are manufactured from high grade steel wire swaged onto a steel ferrule providing a strong and reliable

lifting device that can be re-used subject to being checked for damage prior to each lift.

Each loop is marked with the thread size, safe working load, manufacturer’s mark and an individual index

number which can be found on the test certificate supplied with each loop.

The loops are available in either Metric or Rd threads.

z z 90o

Axial Load Rating Size Length (A) mm Useable Thread (B) mm

500kg M/Rd 12 155 22

1200kg M/Rd 16 155 27

2000kg M/Rd 20 215 35

2500kg M/Rd 24 255 37

4000kg M/Rd 30 300 50

6300kg M/Rd 36 340 65

8000kg M/Rd 42 425 70

12500kg M/Rd 52 480 80

A

B

Instructions For Use

Prior to each loop being used to lift, it should be threaded fully into the socket until it bottoms out, this should be at least one and a half times the thread diameter. If dirt or

ingress prevent this then the threads should be cleaned and the loop re-inserted.

Loops can be used to lift at angles of up to β = 90°. Combination Lifting Loop or Swivel Eye should be used for pitching and turning applications. Using Lifting Loops at angles greater than β = 90° can cause damage at the ferrule and excess strain on the wires

causing breakages.

All loops must be replaced at the first sign of any broken strands, wire breakage, crushing, kinking, thread damage, corrosion, sharp bends or any other damage that could affect the strength or operation of the item. Lifting Loops should be assessed by a

competent person every six months and re-tested annually.

The radius of

the crane hook

must be at least

the diameter of

the wire rope.

Loops must not be used for

pitching and turning units


42

Combination Lifting Loops

These are manufactured from high grade steel wire swaged onto a forged steel eye providing a strong and reliable lifting device that allows safe turning and erecting of precast units. The loops can be re-used subject to being checked for damage prior to each

lift.

Each loop is marked with the thread size, safe working load, manufacturer’s mark and an individual index number which can be found on the test certificate supplied with each

loop.

Combination Loops are available in either Metric or Rd threads with or without a centre

swage.

Axial Load Rating Size Length (A) mm Useable Thread (B) mm

500kg M/Rd 12 355 22

1200kg M/Rd 16 385 27

2000kg M/Rd 20 470 35

2500kg M/Rd 24 550 37

4000kg M/Rd 30 590 50

6300kg M/Rd 36 780 65

8000kg M/Rd 42 860 70

12500kg M/Rd 52 1080 80

A


Prior to each loop being used to lift it, should be threaded fully into the socket until the face of the eye is flush to the face of the concrete. If dirt or ingress prevent this then the

threads should be cleaned and the loop re-inserted.

Loops can be used to lift in axial loads and right angles for pitching / turning units.

All loops must be replaced at the first sign of any broken strands, wire breakage, crushing, kinking, thread damage, corrosion, sharp bends or any other damage that could affect the strength or operation of the item. Lifting Loops should be assessed by a compe-

tent person every six months and re-tested annually.

The radius of

the crane hook

must be at least

the diameter of

the wire rope.

The face of the eye must be flush with the concrete

Load Direction

Once the concrete units have been pitched to

an upright position Combination Lifting Loops

are suitable for axial and angled lifting

providing the correct reinforcement has been

installed and that the correct angle limits are

observed.


43

Swivel Lifting Eyes

Swivel Lifting Eyes are a cost effective method of lifting most types of precast concrete units with all types of threaded lifting sockets. They are especially useful for pitching and turning units and for high volume lifting on site or in the factory where loops can wear out

quickly.

They are manufactured from high grade steel which provides a strong and reliable lifting device that can be re-used repeatedly subject to being checked for damage prior to each

lift.

Each eye is marked with the safe working load, manufacturer’s production marks, angle guides and an individual index number which can be found on the test certificate supplied

with each item. The eyes are available in either Metric or Rd threads.

A

B

C D

E

F

Spanner

Width

Thread

Size SWL

A

mm

B

mm

C

mm

D

mm

E

mm

F

mm

O

mm

Spanner Width

mm

M/Rd12 700kg 32 55 48 41 18 36.5 13 34

M/Rd16 1400kg 32 55 48 41 20 36.5 13 34

M/Rd20 2500kg 34 70 67 57 30 52 16 46

M/Rd24 4000kg 45 85 75 63 30 57 18 50

M/Rd30 6700kg 45 85 94.5 78 35 70 20 65

M/Rd36 10000kg 60 115 106 86 50 81 23 75

M/Rd42 12500kg 70 140 111 92 60 88 28 80


Prior to each Swivel Lifting Eye being used to lift it should be threaded fully into the socket until the face of the eye is flush to the face of the concrete and hand tightened with a spanner. If dirt or ingress prevent this

then the threads should be cleaned and the loop re-inserted.

Swivel Lifting Eyes can be used in axial loads and at angles of up to 90o for pitching / turning units. The base of

the eye rotates freely through 360o under load.

Swivel Lifting Eyes should be examined for damage before each lift, paying particular attention to the threads, crane hook eye, and general wear and tear. Wear on the ball bearings can be easily recognised by the

indication ring as shown in the diagram below, replace worn out eyes as soon as this is visible.

Swivel Eyes must be assessed by a competent person every six months and re-tested annually.

Replace Swivel Eyes when the wear

indicator ring is visible

Load Direction

Axial load

permitted

when turned


44

A

B

Polypropylene Cast In Loops

LFS Polypropylene Cast In Loops are a cost effective method of lifting lightweight concrete units and provide a

crane hook attachment that can be cut off once used.

Product Details

These are produced from polypropylene rope with a swaged aluminium

ferrule to create a loop which is individually marked with the

appropriate load rating. These are designed for use for de-moulding,

transportation and fixing only and should not be used more than once

such cycle.

The loops are available in load ratings from 150kg to 1200kg and should

be selected according to the lifting design considerations detailed in

pages one and two of this catalogue.

These items can be used with concrete strengths above 15N/mm2 for

axial or angled lifts and for pitching at 20N/mm2 and above. These have

the advantage that the rope does not corrode and stain the concrete.

Installation

Cast In Loops should be installed in the direction of the load with the ferrule in the opposite direction. They

should be positioned around the centre of gravity in a manner that will give a balanced load making sure that

the minimum dimensions are observed as set out in the table below. It may be necessary to use reinforcement

bar for thin units and should be looped as shown below.

When lifting it is essential that the curvature of crane hook is at least the diameter of the loop.


Direction of Load

Load Rating (kg)

Exposed Height A (mm)

Cast In Height B (mm)

Rope Dia. (mm) Edge Distance

C (mm) Edge Distance

D (mm)

Min Edge Distance E

(mm)

150 100 160 6 200 100 40

250 100 160 8 200 100 50

360 100 200 10 300 150 60

500 100 200 12 300 150 70

875 120 240 14 400 200 80

1200 120 240 16 450 225 100

For thin units reinforcement bar

should be used as shown above. C D

E

E


45

Cast-In Concrete Lifting Loops

Cast-In Concrete Lifting Loops are a cost effective method of lifting many types of precast concrete units quickly and safely. They provide a quick installation when casting and can easily be cut off once in position and concealed. However, it should be noted that the

remaining ends can rust and hence stain if not properly concealed.

Providing the following reinforcement details are observed, no further reinforcement is required under normal circumstances. For any angles greater than β =60º, please contact Lifting and Fixing Solutions Ltd. The sling angle reduction factors do not apply to Cast-In Loops. All installation instructions are based on a 2.5:1 concrete safety factor at a

strength of 15N/mm2 and 3:1 for wire rope and are tested for by a recognised institution.

The Loops are manufactured from galvanised steel wire with identification tags showing the manufactures name and load rating. This product is not designed for repeated use and

should only be used for lifting from factory to site and final installation.

Loops should be selected correctly dependant on the size of the concrete unit, taking all lifting factors into account. Please contact Lifting and Fixing Solutions Ltd should

calculations be required.

Loops should be installed in the lift direction as follows. The swage should in opposites to the load with the exposed portion the correct height and the identification tag clear of the poured concrete. When setting the loops there should be 1/3 of the loop remaining proud

of the concrete. Anchors are also available in higher capacities up to 99.0t on request.



Axial Load

Rating (kg)

Length (L)

mm

Wire Diameter

mm

Necessary Mesh

Reinforcement

Length Reinforcement

(A) mm

Height of Reinforcement

Stirrups (B) mm

800kg 200 6 Q131 40 23

1200kg 220 7 Q131 45 25

1600kg 235 8 Q131 50 30

2000kg 255 9 Q188 55 35

2500kg 280 10 Q188 65 45

4000kg 330 12 Q188 70 50

5200kg 385 14 Q188 80 55

6300kg 385 16 Q188 95 60

8000kg 430 18 Q221 105 70

10000kg 470 20 Q221 120 80

12500kg 510 22 Q221 130 90

16000kg 560 26 Q221 150 100

20000kg 610 28 Q377 170 115

25000kg 670 32 Q377 195 130

A

B

When lifting it is essential that

the curvature of crane hook is at

least the diameter of the loop.


46

Installation Instructions (Cont…)

Prior to installation it is essential to check each loop carefully for broken strands, corrosion, pinched wire or any other damage that could compromise the strength of the product. Discard any such damaged loops

immediately.

For most applications the loops should be installed parallel to the face of the unit as detailed in (1) with the minimum edge distances and anchor spacings adhered to. They can be installed at right angles to the face as

in (2) but the panel thickness must be increased accordingly.

Axial Load Rating Embedment

(A) mm

Exposed Distance

(B) mm

Anchor Spacing

(C) mm

Edge Distance

(D) mm

Panel Thickness Parallel Instalation

(E) mm

Panel Thickness Right Angled

Installation (E) mm

800kg 150 50 540 270 70 135

1200kg 160 6 620 310 90 140

1600kk 175 60 690 350 120 170

2000kg 195 65 830 420 140 175

2500kg 205 75 890 450 160 180

4000kg 250 80 1000 500 220 220

5200kg 285 100 1030 520 290 290

6300kg 285 100 1150 580 320 320

8000kg 320 110 1290 650 400 400

10000kg 350 120 1460 730 440 440

12500kg 380 130 1620 810 560 560

16000kg 420 140 1860 930 620 620

20000kg 460 150 2120 1060 680 680

25000kg 510 160 2410 1210 750 750

A

B

Lift Direction

30º 30º

D C D

E

(1) Parallel Installation

30º 30º

Lift Direction

A

B

D D C

E

(2) Right Angled Installation


47

Fixing Inserts with Cross Hole

Fixing Inserts provide a cost effective threaded fixing system in cast concrete with compressive strength of 30N/mm2 and above. They are effective for a single point fixing where no tolerance for attaching is required.

They are manufactured from either zinc plated high grade carbon steel or stainless steel tube.

Fixing Inserts can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are also available to protect threads from

weathering. Please contact LFS with any technical queries

Axial Load

Rating Thread

Length

(A) mm

Rebar Hole Size

(B) mm

Usable Thread

Length (C)

mm

Edge Distance

(D) mm

Edge Distance

(E) mm

Edge Distance

(F) mm

Edge Distance

(G) mm

Re-Bar Diameter

mm

Min Unbent Re-Bar

Length mm

150kg M6 35 6 10 60 60 80 80 5 320

200kg M8 40 8 15 60 60 80 80 6 320

350kg M10 50 10 17 75 75 100 100 8 540

500kg M12 60 12 23 90 90 120 120 10 540

500kg M12 70 12 33 105 105 140 140 10 540

700kg M16 70 12 20 105 105 140 140 10 650

800kg M16 80 12 30 120 120 160 160 10 650

800kg M16 100 12 50 150 150 200 200 10 650

800kg M16 120 12 70 180 180 240 240 10 650

1250kg M20 100 14 40 150 150 200 200 12 770

1250kg M20 120 14 60 180 180 240 240 12 770

1800kg M24 120 14 40 180 180 240 240 12 880

2750kg M30 150 16 65 225 225 300 300 14 1100

A

C

B

C/L

D E

(1)

G F

(2)


For all sizes above M6 a BSt500s reinforcement bar tail must be used to ensure anchorage in the concrete and should be fitted inside a re-bar cage befitting the unit as specified by the design engineer. All bar sizes and minimum edge distances in the table above should be observed. The pattern of reinforcement bar bending can be tailored to the unit, examples of suitable patterns are shown below. Permissible safe working loads are based upon a safety factor approximately three times the safe working load. Loads in shear are taken as

approximately half the safe working load.


48

Fixing Inserts With Cross Pin

Fixing Inserts with Cross Pins provide a cost effective threaded fixing system in cast concrete with compressive of 30N/mm2 and above where either the unit or speed of installation required does not permit the use of a reinforcement bar tail. They are effective for a single point fixing where no tolerance is required for attachment. They are manufactured from either high grade zinc plated mild or stainless steel tube for light duty and solid bar for heavy duty use dependant on the application required. Fixing Inserts can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are also available to protect threads from weathering.


Light Duty Fixing Inserts with Cross Pin

Axial Load

Rating Thread Length (A) mm

Usable Thread

Length (B) mm

Bar Diameter

(C) mm

Bar Length (D)

mm

200kg M8 40 10 6 40

350kg M10 50 17 6 40

500kg M12 60 23 8 50

800kg M16 80 30 10 80

800kg M16 100 50 10 80

1250kg M20 100 40 12 100

1800kg M24 120 60 12 100 D

A

B

C

Heavy Duty Fixing Inserts with Cross Pin

Axial Load

Rating

Shear Load

Rating Thread

Length

(A1) mm

Usable Thread

Length (B2)

mm

Diameter

(C1) mm

Bar Length

(D1) mm

Bar Diameter

(E1) mm

600kg 400kg M10 60 35 16 50 6

900kg 560kg M12 50 20 20 75 10

900kg 560kg M12 75 40 20 75 10

1700kg 1100kg M16 75 40 22 75 10

1700kg 1100kg M16 100 40 22 75 10

2300kg 1700kg M20 75 35 25 90 12

3000kg 2400kg M24 100 55 35 100 16

6000kg 3800kg M30 125 60 50 120 25

A1

B2

D1

C1

E1

Right Angled Fixing Insert

Axial Load Rating Thread Length (A2) mm

Thread Embedment

(B2) mm

Angle Length (C2)

mm

300kg M8 50 8 20

600kg M10 60 17 25

500kg M12 45 23 25

800kg M12 70 23 30

800kg M16 60 24 35

800KG M16 100 32 35

1250kg M20 70 40 30

1200kg M20 100 40 35

1600kg M24 120 80 35

A2

C2

B2


49

Fixing Inserts Without Cross Hole


All Fixing Inserts with Cross Pin or Angled Fixing Inserts should be fitted inside a re-bar cage befitting the unit as specified by the design engineer and should observe the edge distances as detailed in the table below. The safe working loads are based upon a 2.5:1 provided a minimum concrete strength of 30N/mm2 has been achieved. The following edge distances should be observed. For tubular inserts used in shear, safe load limit

is half axial load.

Light Duty Fixing Inserts with Cross Pin (1)

Axial Load

Rating Thread Anchor Length

Edge Distance (A)

mm

Edge Distance (B)

mm

200kg M8 40 60 60

350kg M10 50 75 75

500kg M12 60 90 90

700kg M16 80 120 120

800kg M16 100 150 150

1250kg M20 100 150 150

1800kg M24 120 180 180

Heavy Duty Fixing Inserts with Cross Pin (2)

Axial Load

Rating Thread

Anchor Length

(mm)

Edge Distance

(A) mm

Edge Distance

(B) mm

Minimum Anchor

Spacing (C)

mm

600kg M10 75 75 75 150

900kg M12 75 75 75 150

1700kg M16 75 75 75 150

2300kg M20 100 75 75 150

3000kg M24 100 100 100 200

6000kg M30 125 125 125 250

Shear Load

Rating

400kg

560kg

1100kg

1700kg

2400kg

3800kg

Light Duty Fixing Inserts with Cross Pin (3)

Axial Load Rat-

ing Thread

Anchor Length

(mm)

Edge Distance

(A) mm

Edge Distance

(B) mm

300kg M8 50 60 60

600kg M10 60 75 75

500kg M12 45 90 90

800kg M12 70 90 90

800kg M16 60 120 120

800KG M16 100 120 120

1250kg M20 70 150 150

1200kg M20 100 150 150

1600kg M24 120 180 180

B A C

(1)

B A

(3)

B A

C

(2)


50

Spread Anchor Lifting System

The LFS range of Spread Anchors are a simple and effective system for lifting most types of precast concrete

units. The anchors are manufactured from high grade steel and, providing the anchor is specified and installed

correctly, it provides safe and secure lifting.

Anchor Selection

The following anchors are available:

Spread Anchors

The most versatile of the anchors and is suitable for lifting most types of beams, wall panels

and slabs. The second hole provides the option to use extra reinforcement where required.

These are available in safe working loads from 0.7t to 26.0t

Two Hole Anchors

Two Hole Anchors are suitable for use where load distribution is not possible through the foot

of a spread anchor and is done so by use of a reinforcement bar tail. They are particularly

useful in thin wall panels and trusses or where concrete strength is low. These are available

in safe working loads from 0.7t to 22.0t

Plate Anchors

These anchors are used for thin slabs and reinforcement is essential. They are available in

safe working loads from 1.4t to 10.0t.

Erection / Unilateral Erection Anchors

These anchors are specifically designed for pitching and turning concrete units. They have

a specially designed head which takes the load rather than the concrete which prevents

spalling and is notched to easily install the extra reinforcement required for pitching. They

are particularly useful for turning thin walled units and are available in safe working loads

from 1.4t to 22.0t

Flat Foot Anchors

These anchors similar in use to the Plate Anchor. They are used for thin slabs and

reinforcement is essential. They are available in safe working loads from 1.4t to 22.0t.

Universal Anchor

These are for light duty applications and combine the benefits of Two Hole, Erection and

Spread Anchors. They are available in 1.25t only and use a smaller Ring Clutch specific to this

load group. They are suitable for small precast units or where a small recess is required.

Sandwich Panel Anchor

These anchors are specifically designed for sandwich panel manufacture. When installed the

anchor head is close to the unit’s centre of gravity allowing it to be lifted in a straight and

upright position. These are available in safe working loads from 2.5t to 17.0t


51

A

B

C

D

Spread Anchor Installation Instructions

Anchor Specifications

Axial Load Rating (t) Anchor Length

(A) mm

Anchor Width

(B) mm

Anchor Thickness

(C) mm

Re-Bar Hole Dia.

(D) mm

Cover to Anchor

Head (E) mm

0.7 110 30 5 14 10

1.4 110 30 6 14 10

1.4 160 30 6 14 10

2.0 130 30 8 14 10

2.0 160 30 8 14 10

2.0 210 30 8 14 10

2.5 150 30 10 14 10

2.5 200 30 10 14 10

2.5 250 30 10 14 10

3.0 160 40 10 18 10

3.0 200 40 10 18 10

3.0 280 40 10 18 10

4.0 180 40 12 18 10

4.0 240 40 12 18 10

4.0 320 40 12 18 10

5.0 180 40 15 18 10

5.0 240 40 15 18 10

5.0 400 40 15 18 10

7.5 260 60 16 26 15

7.5 300 60 16 26 15

7.5 420 60 16 26 15

10.0 300 60 20 26 15

10.0 370 60 20 26 15

10.0 520 60 20 26 15

14.0 370 80 20 35 15

14.0 460 80 20 35 15

22.0 500 80 26 35 15

22.0 620 80 26 35 15

E

Anchors are available in black, zinc plated, galvanised steel or stainless steel. Special sizes and hole positions

are available to order.


52

Spread Anchor Installation Instructions

Load capacity and installation dimensions for large-area (slabs) or thick-walled precast units

Load Rating (t)

Anchor Length d

(mm)

Axial Load Capacity Fzul

(t)

Minimum Edge Distances

er

Min. Spaces Between Centres

ez (mm)

for ßw

≥ 15 N/mm2 (mm)

for ßw

≥ 25 N/mm2

(mm)

for ßw

≥ 35 N/mm2 (mm)

0.7 110 0.7 35 35 35 280

1.4 110 1.4 70 50 40 380

2.0 130 2.0 90 60 50 455

2.0 160 2.0 70 50 40 665

2.0 210 2.0 65 45 35 570

2.5 150 2.5 100 75 60 525

2.5 200 2.5 75 55 45 700

2.5 250 2.5 75 50 40 920

3.0 160 3.0 110 80 60 560

3.0 200 3.0 85 60 50 700

3.0 280 3.0 85 60 50 1025

4.0 180 4.0 150 100 80 630

4.0 240 4.0 100 75 60 840

4.0 320 4.0 110 75 60 1175

5.0 180 5.0 190 140 110 630

5.0 240 5.0 150 100 80 840

5.0 400 5.0 115 85 65 1480

7.5 260 7.5 220 170 125 910

7.5 300 7.5 190 140 110 1050

7.5 420 7.5 190 135 110 1540

10.0 300 10.0 275 200 175 1050

10.0 370 10.0 220 160 125 1295

10.0 520 10.0 225 160 130 1910

14.0 370 14.0 400 280 225 1295

14.0 460 14.0 300 220 175 1610

22.0 500 22.0 450 340 300 1750

22. 620 22.0 400 280 225 2170

t

≥ ez

≥ ez

≥ ez

≥ er

≥ er

Re-bar Links

Anchors to be installed in this direction only

When the load is

towards the narrow

edge of a unit angled

lift reinforcement must

be installed

≥ 0.5

e z

≥ ez

≥ er ≥ e

r


t = Anchor Length + Cover to Anchor Head + Specified Concrete Cover


53

Load Capacity and Installation Dimensions for Thin Walled Precast Units

(1) Angled lift at 30°< β ≤ 60° without angle pull reinforcement only allowed when:

bw ≥ 15N/mm2 + 3 times min. thickness of unit

bw ≥ 25N/mm2 + 2,5 times min. thickness of unit


(min thickness of unit e = 2 x er)

(2)Where concrete strength bw ≥ 23N/mm2 Fzul

can be taken as 100%

(3)Angle of b ≥ 60° due to cable spread is not permitted

Load Rating (t) Anchor length

(D) (mm)

Spacing Between

Anchor Centres

Min. Thickness of Precast Unit

(2 x er) 100% Fzul 80% Fzul

min. ez for ßw ≥ 15 N/

mm2 for ßw ≥ 25 N/

mm2 for ßw ≥ 35 N/

mm2

Pull

(ß ≤ 30°)

Angled pull

(ß > 30°)

(mm) (mm) (mm) (mm) (t) (t)

0.7 110 330 70 60 60 0.7 0.6

1.4 110 330 90 70 70 1.4 1.1

2.0 130 390 110 90 90 2.0 1.6

2.0 160 480 100 80 80 2.0 1.6

2.0 210 630 90 70 70 2.0 1.6

2.5 150 450 120 80 80 2.5 2.0

2.5 200 600 110 80 70 2.5 2.0

2.5 250 750 100 80 70 2.5 2.0

3.0 160 480 120 100 100 3.0 2.4

3.0 200 600 110 90 90 3.0 2.4

3.0 280 840 100 80 80 3.0 2.4

4.0 180 540 140 120 100 4.0 3.2

4.0 240 720 130 110 100 4.0 3.2

4.0 320 960 120 100 100 4.0 3.2

5.0 180 540 180 140 140 5.0 4.0

5.0 240 720 160 120 120 5.0 4.0

5.0 400 1200 140 100 100 5.0 4.0

7.5 260 780 240 160 120 7.5 6.0

7.5 300 900 200 160 120 7.5 6.0

7.5 420 1260 160 120 120 7.5 6.0

10.0 300 900 280 200 160 10.0 8.0

10.0 370 1110 240 160 160 10.0 8.0

10.0 520 1560 200 140 120 10.0 8.0

14.0 370 1110 300 250 200 14.0 11.2

14.0 460 1380 240 200 160 14.0 11.2

22.0 500 1500 400 300 250 22.0 17.6

22.0 620 1860 300 250 250 22.0 17.6

Load Capacity and Minimum Edge Distances

0.5 x A

100% F zul

80% (2)

(3)

30o 30o

er er (3)

80% (2) 80% (2)

100% F zul

30o 30o

0.5 x ez

D


54

Installation Instructions for Spread Anchors

Load capacity and installation dimensions for large-area (slabs) or thick-walled precast

units.

Concrete strength must be ≥ 15 N/mm2 with grade 460B reinforcement

(1) Angled lift at 30°< β ≤ 60° without angle pull

reinforcement only allowed when:




(min thickness of unit t = 2 x er)

Pull (ß<= 30°) Angled Pull (ß> 30°)

Mesh

Reinforcement

BST500M

Slot-in links BSt500S

n Ø..x A

Edge Reinforcement

BST500S

Mesh

Reinforcement

Slot-in links BSt500S

n d..x A

Edge

Reinforcement

BST500S

Angled Lift

Reinforcement BSt500S

n Ø x B

(t) (Both sides) (mm) (mm) (Both sides) (mm) (mm) (mm)

0,7 142 2 Ø 6x 400 Ø 6 A142 4 Ø 6 x 300 Ø 8 Ø 6 x 450

1,4 142 2 Ø 6x 400 Ø 6 A142 4 Ø 6 x 400 Ø 8 Ø 6 x 900

2,0 142 2 Ø 6x 500 Ø 6 A142 4 Ø 6 x 500 Ø 8 Ø 8 x 950

2,5 142 2 Ø 8x 600 Ø 8 A142 4 Ø 8 x 600 Ø10 Ø 8 x1200

3,0 142 2 Ø 8x 700 Ø 8 A142 4 Ø 8 x 700 Ø10 Ø10 x 1150

4,0 142 2 Ø 8x 800 Ø 8 A142 4 Ø 8 x 800 Ø12 Ø10 x 1500

5,0 142 2 Ø10 x 800 Ø10 A142 4 Ø10 x 800 Ø12 Ø12 x 1550

7,5 193 2 Ø10 x 800 Ø10 A193 4 Ø10 x 800 Ø12 Ø14 x 2000

10,0 193 4 Ø10 x 1000 Ø12 A193 6 Ø10 x 1000 Ø14 Ø16 x 2300

14,0 252 4 Ø10 x 1000 Ø14 A252 8 Ø10 x 1000 Ø14 Ø20 x 2600

22,0 252 4 Ø12 x 1200 Ø14 A252 8 Ø12 x 1200 Ø16 Ø25 x 3000

Load Rating

Angled Lift Reinforcement B = 2 x Leg Length Approx

The angled lift reinforcement must be

installed in the opposite direction of the load

Slot in links positioned as close to the anchor as possible

Area of slot in links should be ≥ 3 times anchor length

Edge Reinforcement

Mesh Reinforcement

A


55

Min. Distances From Edge / Centres for ßw ≥ 15 N/mm2 Maximun Permissable Load

er ez D L Axial Pull Angle pull Erection

(mm) (mm) (mm) (mm) (t) (t) (t)

0.7 100 700 8 600 0.7 0.56 0.35

1.4 100 700 10 700 1.4 1.12 0.7

2.0 100 800 10 750 2.0 1.6 1.0

2.5 100 875 12 800 2.5 2.0 1.25

3.0 150 950 12 850 3.0 2.4 1.5

4.0 150 1050 14 950 4.0 3.2 2.0

5.0 150 1435 16 1000 5.0 4.0 2.5

7.5 250 1470 20 1200 7.5 6.0 3.75

10.0 300 1820 20 1500 10.0 8.0 5.0

14.0 525 1800 25 1800 14.0 11.2 7.0

22.0 710 2200 28 1800 22.0 17.6 11.0

Load Rating (t)

Installation Instructions for Spread Anchors

Load capacity and installation dimensions for turning and erecting precast elements

Reinforcement Steel BST 500 S L = overall length, radius according to BS 8666

≤90o

L

D

Dependant on

unit thickness

The horizontal bars of the turning reinforcement

must be at least the minimum cover

Anchors must be installed in this direction only

≥ ez Spacing to the next anchor


56

A

B

C

D

Two Hole Anchor Installation Instructions


Load Rating

(t)

Anchor Length

(A) mm

Anchor Width

(B) mm

Anchor Thickness

(C) mm

Hole Diameter

(D) mm

1.4 90 30 6 14

2.0 90 30 8 14

2.5 90 30 10 14

3.0 120 40 10 18

4.0 120 40 12 18

5.0 120 40 15 18

7.5 160 60 16 18

10.0 170 60 20 26

14.0 240 80 20 29

22.0 300 80 26 35

26.0 300 120 30 65

Cover to Anchor Head

(E) mm

10

10

10

10

10

10

15

15

15

15

15

E

Anchors are available in black, zinc plated, galvanised steel or stainless steel. Special sizes and hole positions

are available to order.

Installation Instructions for Two Hole Anchors

Load capacities and installation dimensions

Position the angled pull reinforcement as closely to the

recess former as possible

(1) Angled lift at 30°< β ≤ 60° without angle pull

reinforcement only allowed when:





(2)Where concrete strength bw ≥ 23N/mm2 Fzul can

be taken as 100%

(3)Angle of β ≥ 60° due to cable spread is not

permitted

Load Rating (t) Anchor Length D

(mm)

Spacing Between Anchor Centres ez

(mm)

Min. Thickness of Precast Unit 2 x er

(mm)

100% Fzul Pul

ß<=30° (t)

1.4 90 500 80 1.4 1.1

2.0 90 600 90 2.0 1.6

2.5 90 600 100 2.5 2.0

3.0 120 650 100 3.0 2.4

4.0 120 700 110 4.0 3.2

5.0 120 750 120 5.0 4.0

7.5 160 1200 130 7.5 6.0

10.0 170 1200 140 10.0 8.0

14.0 240 1500 160 14.0 11.2

22.0 300 1500 180 22.0 17.6

26.0 300 1500 200 26.0 20.8

80% Fzul Angled Lift

ß>30° (t)


57

Load

Rating

Pull (ß<= 30°)

Angled (ß> 30°)

Mesh Reinforce-

ment

Both Sides of

the Anchor

Slot in links BSt500S

n d..xL1

Edge Reinforce-

ment

BST500S

2 Reinforce-ment tails BSt500S

n Ø x Lz

Mesh Rein-

forcement

Both Sides of

the Anchor

Slot in links BSt500S

n d..xL1

Edge Rein-forcement

BST500S

2Reinforce-ment Tails BSt500S

n Ø x Lz

1 Angled Lift Reinforce-

ment BSt500S

n Ø x Lr

(t) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)

1.4 A142 2 Ø 6 x 400 Ø 6 1 Ø10 x 650 A142 4 Ø 6 x 400 Ø 8 1 Ø10 x 650 Ø 6 x 900

2.0 A142 2 Ø 6 x 500 Ø 6 1 Ø12 x 800 A142 4 Ø 6 x 500 Ø 8 1 Ø12 x 800 Ø 8 x 950

2.5 A142 2 Ø 8 x 600 Ø 6 1 Ø12 x 1000 A142 4 Ø 8 x 600 Ø10 1 Ø12 x 1000 Ø 8 x 1200

3.0 A142 2 Ø 8 x 700 Ø 8 1 Ø14 x 1000 A142 4 Ø 8 x 700 Ø10 1 Ø14 x 1000 Ø10 x 1150

4.0 A142 2 Ø 8 x 700 Ø 8 1 Ø16 x 1200 A142 4 Ø 8 x 800 Ø12 1 Ø16 x 1200 Ø10 x 1500

5.0 A142 2 Ø 8 x 800 Ø 8 1 Ø16 x 1500 A142 4 Ø10 x 800 Ø12 1 Ø16 x 1500 Ø12 x 1550

7.5 A142 2 Ø10 x 800 Ø10 1 Ø20 x 1750 A142 4 Ø10 x 800 Ø12 1 Ø20 x 1750 Ø12 x 2000

10.0 A142 4 Ø10 x 800 Ø12 1 Ø25 x 1850 A142 6 Ø10 x

1000 Ø12 1 Ø25 x 1850 Ø16 x 2300

14.0 A142 4 Ø10 x 1000 Ø14 1 Ø28 x 2350 A142 8 Ø10 x

1000 Ø12 1 Ø25 x 2350 Ø20 x 2600

22.0 A142 4 Ø12 x 1200 Ø14 1 Ø28 x 3000 A142 8 Ø12 x

1200 Ø16 1 Ø25 x 3000 Ø25 x 3000

26.0 A142 6 Ø12 x 1200 Ø16 2 Ø28 x 3050 A142 8 Ø12 x

1200 Ø16 2 Ø25 x 3050 Ø25 x 3450

Installation Instructions for Two Hole Anchors

Reinforcement Required

Angled Lift Reinforcement Lr = 2 x Leg Length Approx

Length of slot in link L1

Area of slot in links should be ≥ 3 times anchor length

Slot in links positioned as close to the anchor as possible

Lz

(1) Angled lift at 30°< β ≤ 60° without angle pull reinforcement only allowed when:





(2)Where concrete strength bw ≥ 23N/mm2 Fzul

can be taken as 100%

(3)Angle of b ≥ 60° due to cable spread is not permitted


58

Load Rating

(t)

Anchor Length

(A) mm

Erection Anchor

Width (B1)

mm

Anchor Thickness

(C) mm (D) mm

Cover to Anchor Head

(E) mm

Cover to Pitching

Nib (F) mm

1.4 200 55 6 45 10 5

2.5 230 55 10 45 10 5

4.0 270 70 12 70 10 5

5.0 290 70 15 70 10 5

7.5 320 95 15 90 10 6

10.0 390 95 20 90 15 6

12.5 500 148 20 90 15 9

17.0 500 148 25 90 15 9

22.0 500 148 30 90 15 9

Unilateral Erection Anchor

Width (B2)

mm

40

40

55

55

80

80

115

115

115

Erection Anchor Installation Instructions


A

B

C

D

F E

B2


59

Installation Instructions for Erection and

Unilateral Erection Anchors

Load Capacities and Installation Dimensions

1Where concrete strength bw ≥ 23 N/mm2 Fzul can be taken as 100%

2Angle of lift b > 60° due to cable spread are not permitted

3 Insert the pitching reinforcement in the anchor notches.

Only LFEA allows pitching on both sides. Reinforcement patterns for pitching are the same for both stan-dard and unilateral erection anchors.

Load Rating(t)

Anchor Length d (mm)

Min. Spacing Between Anchor Centres ez (mm)

Min. Thickness of Precast Unit (2 x er)

Transport

Lift

(ß ≤ 15°)

Transport

Angled Lift

(ß > 15°)

Pitching

Erection Anchor

Unilateral Erection Anchor

100% Fzul (t) 80%

Fzul (t)

1.4 200 700 90 100 1.4 1.1 0.7

2.5 230 800 120 120 2.5 2.0 1.3

4.0 270 950 140 150 4.0 3.2 2.0

5.0 290 1000 140 160 5.0 4.0 2.5

7.5 320 1200 160 175 7.5 6.0 3.8

10.0 390 1500 200 200 10.0 8.0 5.0

12.5 500 1500 240 240 14.0 11.2 7.0

17.0 500 1500 300 300 17.0 13.6 8.5

22.0 500 1500 360 360 22.0 17.6 11.0

50% Fzul (t)


Direction of Former

≥ ez Spacing to the next

Pitching reinforcement on both sides also acts as angled pull reinforcement. No further angled lift reinforcement is required. The horizontal legs of the turning reinforcement should be situated within the outermost position of the reinforced area.

Load Range (t)

1.4 10 x 700

2.5 12 x 800

4.0 12 x 950

5.0 16 x 1000

7.5 20 x 1200

10.0 20 x 1500

12.5 25 x 1500

17.0 25 x 1800

22.0 28 x 1800

Pitching Reinforcement BSt 500 D x L (mm)

Concrete strength ßw ≥ 15 N/mm2

For the following strengths, the length of L can be reduced by the

following factors:

ßw ≥ 25 N/mm2 = x 0.8 ßw ≥ 35 N/mm2 = x 0.65

Concrete strength bw ≥ 15 N/mm2

Reinforcement Steel BST 500 S L = overall length, radius according to BS 8666

≤90o

L

D

Dependant on

unit thickness


60

Installation Instructions for Plate Anchors

Load Capacities, Installation Dimensions and Additional Reinforcement for Thin Slabs

A

B

C

D

E

Load Rating (t)

Anchor Length

Min. Spaces Between Centres and from Edges

Reinforcement Tails

Permissible Load

A er ez Ø L bw ≥ 15 N/mm2 bw ≥ 25 N/mm2

(mm) (mm) (mm) (mm) (mm) (t) (t)

1.4 55 115 230 8 200 1,12 1,4

2.5 80 165 330 10 300 2,0 2,5

5.0 120 240 480 12 450 4,0 5,0

10.0 160 330 660 16 600 8,0 10,0

Load Rating (t)

Anchor Height (A)

mm

Anchor Width (B)

mm

Anchor Thickness

(C) mm

Plate Width (D)

mm

Plate Thickness

(E) mm

1.4 55 30 6 80 8

2.5 80 30 10 80 8

5.0 120 40 15 100 10

10.0 160 60 20 140 12




61

Installation Instructions for Flat Foot Anchors

Load Capacities, Installation Dimensions and Additional Reinforcement for Thin Slabs


A

B

C

D

Load Rating (t)

Anchor Height (A)

mm

Anchor Width (B)

mm

Anchor Thickness

(C) mm

Foot Width

(D) mm

0.7 65 30 5 70

1.4 65 30 6 70

2.0 70 30 8 80

2.5 75 30 10 94

3.0 90 40 10 100

4.0 110 40 12 100

5.0 125 40 15 105

7.5 170 60 16 120

10.0 200 60 20 120

12.5 220 80 16 200

17.0 270 80 20 200

22.0 310 80 26 200

Where loads are acting towards the edge of an element, insert angle pull reinforcement as detailed for spread or Two-Hole anchors.

Load Rating (t)

Anchor Length

Minimum Thickness of

Unit

Min. Distances Between

Centres and Edges Reinforcement Tails Permissible Loads

A t er ez Ø L bw ≥ 15 N/mm2

bw ≥ 25 N/mm2

bw ≥ 30 N/mm2

(mm) (mm) (mm) (mm) (mm) (mm) (t) (t) (t)

0.7 65 80 140 280 8 200 0,7 0,7 0,7

1.4 65 80 140 280 8 250 1,4 1,4 1,4

2.0 70 90 150 300 8 300 1,8 2,0 2,0

2.5 75 100 160 320 8 300 2,0 2.5 2.5

3.0 90 120 190 380 10 400 2,8 3,0 3,0

4.0 110 140 230 460 12 450 3,7 4,0 4,0

5.0 125 160 206 520 12 500 4,4 5,0 5,0

7.5 170 215 340 680 14 600 5,46 7,04 7,5

10.0 200 2,45 400 800 14 600 7,55 10,0 10,0

12.5 220 265 440 880 16 750 8,85 12,5 12,5

17.0 270 315 540 1080 16 900 12,03 17,0 17,0

22.0 310 355 620 1240 20 1100 14,8 22,0 22,0




62

Installation Instructions for Sandwich Panel Anchors

Load Capacities, Installation Dimensions and Additional Reinforce-

ment


Load group

(t)

Anchor Length

(A) mm

Anchor Width

(B) mm

Anchor Thickness

(C) mm

Axial Lift Re-Bar Hole

(D2) mm

2,5 250 40 10 18

5,0 300 60 16 26

7,5 350 80 16 35

10,0 350 80 20 35

17,0 400 100 20 35

A

D1

D2

C

B The sloping head of the sandwich panel anchor type LFSA -ST can be inserted close to the vertical centre of gravity

in large precast concrete sandwich-panels. The panel hangs almost upright during transportation and installation.

H1 = acc. To thickness of the panel but at least as per table

below

2: Only required if FH exists, e. g. when positive production

Part Code

Load Group

(t)

Minimum Anchor Spacing

ez (mm)

Minimum Thickness

of Panel 2 x er

(mm)

Slot-in Links for Lift ds x ls

(mm) 460B Grade

Erection Reinforcement (not included in delivery)

Load capacity

(4)

ds1 ls1 h1 ds2 ls2

mm mm mm (3) mm mm (t) (t9

LFSA -ST-2,5-25 2,5 600 100 2 dia. 8 x 600 10 600 > 60 14 800 2.5 0.8

LFSA -ST-5,0-30 5,0 750 120 2 dia. 8 x 800 14 700 > 80 16 1200 5.0 1.8

LFSA -ST-7,5-35 7,5 1200 130 2 dia. 10 x 800 16 800 > 100 25 1400 7.5 2.6

LFSA -ST-10,0-35 10,0 1200 140 4 dia. 10 x 800 20 900 > 120 25 1800 10.0 3.5

LFSA -ST-17,0-40 17,0 1500 180 4 dia. 12 x 1200 20 1100 > 140 28 2500 17.0 5.0

Additional Reinf. for Lift (not included in

delivery)

(3) In order to ensure adequate corrosion protection, we recommend hot-dip galvanised additional reinforcement.

(4) The loads at diagonal pull for concrete strengths < 23 N/mm2 must be reduced to 80%.

DS1


63

Installation Instructions for Universal Anchors

Load Capacities, Installation Dimensions and Additional Reinforcement

The Universal Anchor has been designed especially for lifting and turning thin panels and lightweight

concrete units.


A

B

C

Load Rating

(t)

Anchor Height (A)

mm

Anchor Width (B)

mm

Cover to Pitching Re-

Bar (C) mm

1.25 120 30 5

Min. Edge Spacing er

(mm)

30

Min. Edge Spacing ez

(mm)

240

Axial

Load (t)

1.25

Angled Lift Load ≤45º

(t)

1.0

Pitching

Load (t)

0.65

For thin panels or those with a single layer of reinforcement mesh, an extra

reinforcement tail of 8mm x 700 460B grade steel is required.

For any turning or erecting units reinforcement is required as detailed below

30o

Dependant on

unit thickness

Pitching reinforcement should be to 460B grade , 8mm diame-

ter and 600mm long unbent length

The Universal Anchor has a Ring Clutch with a

galvanised steel wire loop and smaller former

both specific to this anchor.


64

Spread Anchor Accessories

Ring Clutches

Ring Clutches are a manually operated coupler available in various load groups for use with LFS Spread Anchors and are compatible with the Frimeda System. The head of the clutch includes a locking pin which fastens around the lifting hole of the anchor when installed in the recess of the concrete unit. The Ring Clutch is coupled to a corresponding Spread Anchor for the safe lifting laterally, turning or swivelling of precast concrete units. All LFS Ring Clutches are individually tested and certified by an approved institution. Ring Clutches are available in 2.5t, 5.0t, 10.0t and 20.0t load groups with

both solid handles and rope attachments.

Instructions for Use

To lift the precast unit, select the correct load rated clutch appropriate to the installed anchor and place in the recess as shown in Fig. 1. This can be found stamped on the head and the shackle. Only the correct clutch will fit

the anchor.

Lifting

The clutch can be used to lift in any direction but angles must not exceed β=60o as shown in Fig. 2. The anchor’s load limit and angle reduction factors

must be observed.

Releasing

To release, remove tension from the chains and, with the clutch in hand, pull the locking bolt towards the main body as shown in Fig. 3. The clutch will now

be released.

Engaging

The clutch is prepared for lifting by locking the bolt through the anchor by moving the handle away from the direction of lift as shown in Fig.2. If correctly installed the clutch should be free to move in any direction and the unit can be

de-moulded or lifted safely.

LFS

Direction of Load

90o

Direction

of Load Direction

of Load

LFS

Misusing of Ring Clutches

If the shackle is below

the lifting head when

load is applied it can

lock in this position and

may damage the clutch.

If the Ring Clutch be pulled

towards the surface of the

units at >90o then this risks

bending the shackle on the

edge of the unit.

Shackle

locks when

in this

position

When the Ring Clutch is

being used as shown in

the left hand drawing below the shackle can

lock within the lifting head. This is rectified by

positioning the shackle as shown in the right

hand drawing.

Allowed

Lift

Direction

Fig. 1

Lift

Direction

Fig. 2

Fig. 3

90o Max. Lift

Direction

Pitching / Turning Units

When pitching and turning units using Erection Anchors the direction of the lift

with the Ring Clutch should be a maximum of 90o to the panel as shown in Fig.

4. The anchor will prevent damaging the unit under load. The use of a spreader

beam is highly recommended to prevent torsional and angular forces.

Fig. 4

Shackle

cannot

lock when

in this

position

β


65


Ring Clutches - Maintenance and Examination

In line with industry lifting regulations, all Ring Clutches should be examined by a qualified engineer every six months from the date of the original test which is supplied when new. Providing they are treated with care, Ring Clutches can be re-used indefinitely. However, before every lift, it is essential that each clutch be checked for damage and wear. LFS do not authorise or guarantee the safety of any item that has had any repair other than the replacement of worn locking pins. Ring Clutches with wire rope must only be used with the

original cables supplied when new.

A

C

Lifting Head

As part of the checking the Ring Clutch before

lifting, the head should be examined for any wear

or damage and should no longer be used if any is

present. The aperture (A) should not be greater

than the values stated in the table opposite.

Ring Clutch

SWL (t) (A) Max. mm

1.25 8

2.5 13.5

5.0 19.5

10.0 23.5

26.0 37

B

Shackles

If there is any damage to the shackle such as bending

etc then it should no longer be used. If the value of

(B) is equal to or greater than those stated in the

table opposite then the Ring Clutch should no longer

be used.

Ring Clutch SWL

(t) (B) Min. mm

2.5 13

5.0 19

10.0 25

26.0 38.5

Ring Clutch SWL

(t) (C) Min. mm

2.5 12

5.0 15.5

10.0 22.5

26.0 31

1.3 7

Locking Pins

This is the only part of the Ring Clutch that

can be replaced by the user. Spare parts

are available from LFS on request. The (C)

dimension should be checked before lifting

and replaced if the value is less than stated

in the table opposite.

Wire Cable Loops

Before using a Ring Clutch with a Wire Rope it should be checked for damage such as broken braids, kinking,

corrosion, damaged ferrules or slipping of wires within, separated braids or broken wires at any point on the

rope. Wire ropes should not be in contact with corrosive substances such as acids or alkalis and should be

replaced when any damage is observed.

When using always select a large diameter crane hook as the pressure exerted by smaller hooks can cause

premature damage and wear to the wire.

LFS can replace worn wire ropes on request.

For any further information please contact LFS.


66

Rubber Recess Formers

These are used for mounting anchors to wooden formwork or floating installation for

all variations of Spread Anchors. A smaller version is available for Universal Anchors.

The former has a metric thread and a bayonet fixing to allow the user to install

through the side of either wooden or steel formwork with threaded bar. These are

made from a hardwearing and flexible rubber and have a plastic insert that surrounds

the anchor to help prolong the life of the former. Available in all load groups.


Steel Magnetic Formers

Used for mounting anchors to steel moulds or formwork beds. Special variations are

available to order

Metal Nailing Plates

Used for attaching anchor to wooden formwork.

Former Closer

For securely closing the former during floating installations.

Installing Anchors

When installing anchors, always be sure to use the appropriate former for the formwork being used and ensure

that it is firmly attached to prevent it becoming dislodged when pouring concrete. Always ensure that the

former is greased to allow easy removal once the concrete is set and that the possibility of air pockets is

eliminated with vibration or an equally effective method. To remove the former use two steel bars in a scissors

action as shown below being careful not to cause any damage and remove any excess concrete prior to lifting.

Always ensure formers are in suitable condition before casting and replace when worn out.

Floating Installation

Installation Through Formwork

(Wood or Steel)

Installation With Magnetic

Holding Plate (Steel Mould)

Installation With Nailing

Plate (Wooden Mould)

Removal of Former

Using Steel Bars


67

Plastic Spacers and Accessories

‘A' Frame Spacers

Cover / Max Bar Size Pack Size

15mm / 16mm 1,000

20mm / 16mm 1,000

25mm / 16mm 1,000

30mm / 16mm 1,000

35mm / 16mm 1,000

40mm / 16mm 1,000

50mm / 16mm 1,000

25mm / 20mm 1,000

30mm / 20mm 1,000

40mm / 20mm 1,000

50mm / 20mm 1,000

Wheel Spacers

Cover / Max Bar Size Pack Size

15mm / 12mm 100

20mm /12mm 100

25mm / 12mm 500

25mm / 20mm 500

30mm / 12mm 500

30mm / 20mm 500

40mm / 12mm 250

40mm / 20mm 300

50mm / 12mm 250

50mm / 20mm 250

60mm / 28mm 100

Plastic Shims (Plain and Horseshoe)

Thickness Pack Size

2mm 1,000

3mm 1,000

5mm 500

7mm 500

9mm 250

RE-Bar Safety Caps

Bar Range Pack Size

Small (6-18) 250

Large (16-32 250

01 lfs technical and product manual

Business

x 80010a142

x 80010a193

unit thickness

thickness of unit t

normal precast unit

precast concrete anchors

thickness of unit bw

typeof mould