SM1 Torsion Testing Machine (30Nm)

Features

• Torque capacity up to 30Nm (300lbf in)• Direct readings of torque and strain• Digital torque meter• Suitable for specimen testing to destruction• Forward and reverse loading capability• Accommodates specimens up to 750mm long• Specimens gripped by standard hexagonal drive sockets• Wide range of standard test specimens• SM2 Torsiometer available for accurate strain measurement• Two year warranty• Complies with the latest EEC Safety Directives

Description

The SM1 MkII Torsion Testing Machine has the same basic features as its well known predecessor but has been improved by introducing a digital torque measurement system and extending the length of the unit to allow tests on longer specimens if required. A rigid square aluminium tube is supported at each end by cast aluminium feet and carries a straining head at one end and a torque measuring system at the other. The straining head consists of a 60:1 worm drive reduction gear box mounted on a special extruded aluminium platform which slides long the square tube and can be locked in any position. The output shaft is free to slide on a keyway in the gear box to accommodate any change in length of the specimen during testing and to enable insertion of specimens. Reaction to the torque applied to the specimen is supplied by the torsion shaft which is supported at each end by self

aligning bearings. Test specimens are held at each end by hexagonal drive sockets which fit on the gearbox output and torsion shafts. An arm is fitted to each end of the torsion shaft, the one at the far end being located by a turnbuckle and handwheel for adjusting the angular position of the torsion shaft. The arm at the inner end bears on a dial gauge and can be adjusted using the turnbuckle to maintain one end of the specimen in a fixed position during tests. A linear potentiometer is fitted between the two arms and provides an output proportional to the angle of twist of the torsion shaft.

The potentiometer is connected to a digital meter which reads directly in Nm and lbf in. A calibration arm, weight hanger and weights are supplied for checking or recalibrating the meter if required. Strain of the specimen is measured by protractor scales on the gearbox input and output shafts, these scales being locked in position by knurled thumbnuts. A resettable digital revolution counter is also fitted to the gearbox input shaft to provide a record of total input revolutions in any test. Measurements of specimen strain can be obtained when the torsion shaft is adjusted during a test to maintain one end of the specimen in a fixed position. A Torsiometer, SM2, can be supplied as an extra, if required, for greater accuracy in measuring strain, for example, in determining modulus of rigidity.

Instruction manual

A technical manual is supplied giving a summary of relevant theory, detailed operating instructions and typical test results.

Range of Experiments

1. Verification of the elastic torsion equation.

2. Determination of modulus of rigidity and yield shear stress.

3. Determination of upper and lower yield stresses for normalised steel specimens.

4. Investigation of the behaviour of materials under plastic deformation

and the phenomenon of work hardening.

5. Determination of modulus of rupture in torsion.

6. Reversed torsion tests to demonstrate the Bauschinger effect and the effects of residual body and textural stresses on torsional strength.

7. If heat treatment facilities are available a wide range of tests can be carried out to demonstrate the effect of heat treatment on residual stresses and torsional strength.

Specification

Nominal Capacity: 30Nm (300 lbf in)

Gearbox Ratio: 60:1

Two protractor scales:

360?in 1?and 0.1?divisions

Digital counter:

5 digit resettable type (1 rev = 6?

Drive shaft ends: 12.7mm (0.5in) square

Drive sockets:

3/16" Whitworth and 12mm AF hexagonal (2 off each supplied))

Torque meter:

TQ E101 digital Torque measuring system with 3 1/2 digit display and Nm and lbf in changeover switch (supplied as standard with each SM1 MkII apparatus).

Calibration arm: 500mm (20in) long.

Calibration weights:

2 off 2kg,

1 off 1 kg

1 off 500g with 500g weight hanger.

Test Specimens

Each SM1 Torsion Testing Machine is supplied with a starter pack comprising:

6 off TR1010 (MT15)

0.1% carbon steel, as drawn

6mm diameter, gauge length 76mm

Extras

SM2 Torsiometer:

Mechanical Torsiometer for use with 6mm diameter specimens in both the elastic and plastic regions.

SM1A Additional specimen kit:

Consisting of 1 off each of the specimens listed below.

TR1010 MT15

0.1% carbon steel, as drawn

TR1011MT15N

0.15% carbon steel, normalised at 900°C

TR1020 MT40

0.40% carbon steel, as drawn.

TR1021 MT40N

0.40% carbon steel, normalised at 860°C

TR1040 MTX

Brass 70Cu/30Zn, Half hard

TR1050 MTC1

Cast iron grade 180

Noise

The measured sound pressure level of this apparatus is less than 70 dB(A)

Services Required

Single phase earthed a.c. mains electrical supply 220/240V or 110/120V; 50/60Hz for E101 digital meter. Voltage to be specified on all orders.

Space Required

For satifactory use of this apparatus a bench are of 1.6 x 0.6m is recommended. Alternatively the apparatus may span two benches of the same height.

Dimensions and Weights

Nett: 1550 x 360 x 400mm; 33kg

Gross: 0.3m3; 60kg (approx - packed for export)

Tender Specification

A 30Nm (300lbf in) direct reading torsion machine capable of taking specimens up to 750mm long. Forward and reverse torsion testing facility is essential. Digital measurement of torque is given in Nm or lbf in using a changeover switch. The drive shafts (12.7mm (0.5in)) have 3/16" Whitworth or 12mm AF hexagonal drive sockets. Supplied with sample pack of test specimens. An optional Torsiometer must also be available for use in both the elastic and plastic regions.

Equipment to be supplied

 Features :Torsion Testing Machine is designed for conducting torsion and twist on various metal wires, tubes, sheet materials. Torque measurement is by pendulum dyanometer system. Torque ranges can be adjusted by auto torque selector. Torque can be applied to specimen by geared motor through gear box. Autographic recorder gives the relation between torque and angle of twist. The accuracy of torque indication is + of the true torque. Technical Data : 

Models Unit T-6 TT-1

0 TT-20 TT-50

TT-100

TT-200

TT-300

TT-600

Max. torque capacity

Nm 60 100 200 500 1000 2000 3000 6000

Torque Ranges

Nm

60,30

100,50,20

200,100,50

500,250,100,50

1000,500,250,100

2000,1000,500,200

3000,1500600,300

6000,30001500,600

No. No. of Div. on Dial

Nos 600 500 500 500 500 500 600 600

Torsion Speed

RPM 1.5 1.5 1.5 0.5 0.5 0.5 0.5 0.5

Clearance between Grips

mm

0-420

0-420 0-420 0-5

000-600

0-1000

0-1000

0-1500

Grips for Round specimens

mm

4-88-12

4-88-12

7-1010-1515-20

10-1717-2424-30

10-1818-2626-34

20-3030-4040-50

30-4040-5050-60

40-5050-6060-70

Grips for flat Specimens width mm

mm

1-525

2-825

3-1030

5-1240

5-1550

10-2060

15-2560

25-4070

Motor (400-440 V, 3 Phase & 50 Hz.)

HP 0.5 0.5 0.5 0.5 1.0 1.0 1.5 3.0

Machines upto 25000 Nm. capacity will be available on special enquiry FIE reserves the rights of change in above specification due to constant improvements in design.

 Features :Torsion Testing Machine is designed for conducting torsion and twist on various metal wires, tubes, sheet materials. Torque measurement is by pendulum dyanometer system. Torque ranges can be adjusted by auto torque selector. Torque can be applied to specimen by geared motor through gear box. Autographic recorder gives the relation between torque and angle of twist. The accuracy of torque indication is + of the true torque. Technical Data : 

Models Unit T-6 TT-1

0 TT-20 TT-50

TT-100

TT-200

TT-300

TT-600

Max. torque capacity

Nm 60 100 200 500 1000 2000 3000 6000

Torque Ranges

Nm

60,30

100,50,20

200,100,50

500,250,100,50

1000,500,250,100

2000,1000,500,200

3000,1500600,300

6000,30001500,600

No. No. of Div. on Dial

Nos 600 500 500 500 500 500 600 600

Torsion Speed

RPM 1.5 1.5 1.5 0.5 0.5 0.5 0.5 0.5

Clearance between Grips

mm

0-420

0-420 0-420 0-5

000-600

0-1000

0-1000

0-1500

Grips for Round specimens

mm

4-88-12

4-88-12

7-1010-1515-20

10-1717-2424-30

10-1818-2626-34

20-3030-4040-50

30-4040-5050-60

40-5050-6060-70

Grips for flat Specimens width mm

mm

1-525

2-825

3-1030

5-1240

5-1550

10-2060

15-2560

25-4070

Motor (400-440 V, 3 Phase & 50 Hz.)

HP 0.5 0.5 0.5 0.5 1.0 1.0 1.5 3.0

Machines upto 25000 Nm. capacity will be available on special enquiry FIE reserves the rights of change in above specification due to constant improvements in design.

a two year parts and labour warranty.

ADMET torsion testers employ a linear slide design for maximum torsional

stiffness and minimal axial friction. A reaction torque transducer is attached

to a movable tail stock mounted on a linear slide. The tail stock can be left

free floating or clamped during testing. All torsion testers feature unlimited

rotation in both directions and are ordered as either horizontal or vertical

testers. We will also modify a tester to meet your needs

Features:

• Table-Top units available in vertical or horizontal orientations

• Speed up to 20 Hz

• Capacity: 5Nm - 300Nm (static), 5Nm - 25Nm (Fatigue)

 

ADMET 81T Series Torsion Testing Systems

ASTM F543 Testing on Dental Screws

Specifications:

System Type FrameMax

Capacity

Max

Speed

 eXpert

81T-300S

Electromechani

cal

torsion

Vertical or

Horizontal5Nm 200 rpm

 eXpert

81T-300S

Electromechani

cal

torsion

Vertical or

Horizontal20Nm 90 rpm

 eXpert

81T-300S

Electromechani

cal

torsion

Vertical or

Horizontal50Nm 100 rpm

eXpert

81T-300S

Electromechani

cal

torsion

Vertical or

Horizontal100Nm 70 rpm

eXpert

81T-300S

Electromechani

cal

torsion

Vertical or

Horizontal300Nm 40 rpm

System Type FrameMax

Capacity

Max

Speed

 eXpert

81T-300S

Electromechani

cal

torsion

Vertical or

Horizontal5Nm 200 rpm

 eXpert

81T-300S

Electromechani

cal

torsion

Vertical or

Horizontal20Nm 90 rpm

 eXpert

81T-300S

Electromechani

cal

torsion

Vertical or

Horizontal50Nm 100 rpm

eXpert

81T-300S

Electromechani

cal

torsion

Vertical or

Horizontal100Nm 70 rpm

eXpert

81T-300S

Electromechani

cal

torsion

Vertical or

Horizontal300Nm 40 rpm

 

MT Series Low Capacity Torsion Testing SystemsDesigned primarily for low-capacity (450 µNm - 225 Nm) torsion testing of materials and components, the MT torsion systems offer accurate, multi-turn capability, high rotational stiffness, and minimal axial friction. The system torque cell is attached to a movable crosshead, which can be left free-floating or clamped during testing. When left free-floating, the user can apply an axial pre-load to the specimen using a weight and pulley arrangement. Closed-loop servo-control of the electromechanical drive is provided by I-Series Control Electronics and Partner™ Torsion Software. Features

• Dual linear slide design provides high-rotational stiffness and low-axial friction

• Adjustable crosshead locking system allows crosshead to be free-floating or fixed during testing

• Interlocked test space enclosure enhances operator safety

• Digital control electronics allow for accurate and repeatable test results and fast control response for both torque and angle

• Torsion testing software offers easy test set up, graphical data plots, automatic calculation of desired test results and flexible reporting tools

• Torque Cell protection device minimizes the chance of over-ranging low capacity torque cells during test set up

• Optional axial preload assembly applies a constant tensile or compressive load during test

• Range of low-capacity torque cells are available down to 0.225 Nm (2 lbf-in)

• Designed and sized to easily fit on a lab table top

ModelsMT1

• Maximum Torque Capacity: 22.5 Nm (200 lbf-in)

• Maximum Test Speed: 120 RPM

MT2• Maximum Torque

Capacity: 225 Nm (2,000 lbf-in)

• Maximum Test Speed: 60 RPM

Typical Applications• Wire• Bone Screws• Luer Lock Connectors• Tools• Biomedical Products• Components• Switches• Torsion Springs• Fasteners

ImagesVideo

MT Series Low Capacity Torsion Testing SystemsDesigned primarily for low-capacity (450 µNm - 225 Nm) torsion testing of materials and components, the MT torsion systems offer accurate, multi-turn capability, high rotational stiffness, and minimal axial friction. The system torque cell is attached to a movable crosshead, which can be left free-floating or clamped during testing. When left free-floating, the user can apply an axial pre-load to the specimen using a weight and pulley arrangement. Closed-loop servo-control of the electromechanical drive is provided by I-Series Control Electronics and Partner™ Torsion Software. Features

• Dual linear slide design provides high-rotational stiffness and low-axial friction

• Adjustable crosshead locking system allows crosshead to be free-floating or fixed during testing

• Interlocked test space enclosure enhances operator safety

• Digital control electronics allow for accurate and repeatable test results and fast control response for both torque and angle

• Torsion testing software offers easy test set up, graphical data plots, automatic calculation of desired test results and flexible reporting tools

• Torque Cell protection device minimizes the chance of over-ranging low capacity torque cells during test set up

• Optional axial preload assembly applies a constant tensile or compressive load during test

• Range of low-capacity torque cells are available down to 0.225 Nm (2 lbf-in)

• Designed and sized to easily fit on a lab table top

ModelsMT1

• Maximum Torque Capacity: 22.5 Nm (200 lbf-in)

• Maximum Test Speed: 120 RPM

MT2• Maximum Torque

Capacity: 225 Nm (2,000 lbf-in)

• Maximum Test Speed: 60 RPM

Typical Applications• Wire• Bone Screws• Luer Lock Connectors• Tools• Biomedical Products• Components• Switches• Torsion Springs• Fasteners

ImagesVideo