rk250-7 city crane

329

CITY CRANEMax. Lifting Capacity: 25.0 metric ton at 3.5 m Max. Boom Length: 30.62 m

SPECIFICATIONS

WIRE ROPE Main Ø 16 mm x 170 m IWRC 6 x Fi (29) C/O anti-twist Aux. Ø 16 mm x 90 m IWRC 6 x WS (26) C/O anti-twist HYDRAULIC SYSTEM 2 variable displacement plunger pumps for travel, and

for travel 3 gear pumps for steering and one gear pump for Hydraulic pumps emergency steering

for crane 2 variable displacement plunger pumps, and 3 gear

pump Hydraulic oil tank 410 liters CARRIER PERFORMANCE Max. travel speed 49 km/h Gradeability High gear: 19 % (11°) /Low gear: 50 % (27°)

Min. turning radius Normal steering 8.5 m Cramp steering 4.8 m

Make/model HINO J08E-TM

Type Water cooled, 4 cycle, 6 cylinders, direct

Engine injection diesel with turbocharger, intercooler

Displacement 7.684 liters Max. output 209 kW/2,100 min-1 {284 PS/2,100 rpm} Max. torque 998 Nm/1,600 min-1 {102 kgf m/1,600 rpm} CARRIER MAIN STRUCTURE Travel drive All wheel drive and steering (4 x 4)

Type HST (Hydrostatic transmission), full-time 4

Transmission wheel drive No. of speed shift CVT by HST + High/Low 2-step

All axles steered and driven by variable displacement hydraulic Axles motors, differential locks for transverse lock. 2-step axle intermediate gearSuspension Hydro-pneumatic suspension (with hydraulic cylinder)

Type All hydraulic power steering with emergency steering

Steering device and about-face steering compensation device Mode Normal (front 2W), clamp (4W), crab (4 W) and rear (2W)

Main service brake Internal expansion drum type with full air

Brake

booster, on all wheels Aux. brake HST brake Parking brake Spring locked type, acting on all wheelsTires (front and rear) 385/95 R25 170E ROAD Fuel tank 300 liters

CRANE PERFORMANCE 7.35 m boom 25,000 kg x 3.5 m (7 parts) 12.00 m boom 20,300 kg x 3.5 m (6 parts) 16.66 m boom 19,000 kg x 4.0 m (6 parts) 21.31 m boom 14,450 kg x 4.0 m (4 parts)

Max. rated load25.97 m boom 10,450 kg x 5.5 m (4 parts)

30.62 m boom 7,000 kg x 8.0 m (4 parts)5.8 m jib 4,000 kg x 10.6 m (1 part)

8.9 m jib 2,300 kg x 14.0 m (1 part) 12.0 m jib 2,000 kg x 12.0 m (1 part) Auxiliary sheave 4,000 kg (1 part)

Max. lifting height 25 t hook (Main boom) 31.5 m

4 t ball hook (Twist jib) 43.2 m

Max. working radius Boom 28.2 m

Jib 33.6 mMain boom length 7.35 m to 30.62 m Boom telescoping speed 100 sec/23.27 m Jib length 5.8 m, 8.9 m, 12.0 m Line speed Main: 122 m/min at 4th layer, Aux.: 107 m/min at 1st layer Line pull 4,200 kg at 5th layer Boom raising speed 49.6 sec/ -8° to 82° Swing speed 1.9 min-1 {1.9 rpm} CRANE MAIN STRUCTURE

Box type, 6 sections, 2nd, 3rd, and 4th singly and 5th Main boom and 6th simultaneous telescoping Hydraulic telescoping, use in combnation with wire rope

Side storage, compressed truss and box type, 2nd and 3rd

Jib drawing out type.

Sky tilt jib: hydraulic no-step tilt type (3° to 45°) Manual jib (optional): 3 step variable tilt type (5°, 25°, 45°)

Aux. sheave Mounted on boom tip, upward storage, hook winding up type Hydraulic motor drive, planetary gear reduction and automatic Winch system brake, independent 2 winches (without free-fall)

High to low variable speedBoom hoist system Direct forced type by double acting hydraulic cylinder (-8°~ 82°)

Swing system Hydraulic motor drive, planetary gear reduction type, with parking (negative) brake, half-free/lock selectable

Type All hydraulic, H-type or X-type Outriggers

Extension width H-type: 6.3 m/5.9 m/5.1 m/3.8 m/2.12 m

X-type: 6.3 m/5.9 m/5.1 m/3.8 m/2.98 m

RK250-7

Note: Optional items shown above may change without notice.

330

LIFTING CAPACITIES TWIST JIB Main boom length: 30.62 m Jib length: 5.8, 8.9, 12.0 m Outriggers: 6.3 m positionSwing area: 360°

LIFTING CAPACITIES MAIN BOOM Main boom length: 7.35 - 30.62 m Outriggers: 6.3 m position Swing area: 360°

Unit: ton

Ope

ratin

g ra

dius

(m)

0 10 20 30

7.35ｍ m boom

12.00 m boom

16.66 m boom

21.31 m boom

25.97 m boom

30.62 m boom

30.62 m boom　　＋ 5.8 m jib

30.62 m boom　　＋ 8.9 m jib

30.62 m boom　　　＋ 12.0 m jib

45° 25°

5°

5.8m jib offset 25° 5.8m jib offset 5° 8.9m jib offset 45° 8.9m jib offset 25° 8.9m jib offset 5° 12.0m jib offset 45° 12.0m jib offset 25° 12.0m jib offset 5°

0°

5°

10°

15°

20°

25°

30°

35°

40°

45° 50°

55° 60°

65° 70°

75° 82°

10

20

30

40

503°

5.8m jib offset 45°

Radius front center of rotation (m)

Hei

ght a

bove

gro

und

(m)

Unit: ton

Boom

ang

le (°

)

Jib length (m) 5.8 m Jib angle (°) 3 to 5 25 45

Operating Lifting Operating Lifting Operating Lifting radius (m) capacity (kg) radius (m) capacity (kg) radius (m) capacity (kg) 82.0 5.1 4.00 6.9 3.10 8.4 2.13 80.0 6.5 4.00 8.3 3.10 9.6 2.13 75.0 9.7 4.00 11.4 3.10 12.6 2.04 73.5 10.6 4.00 12.3 2.95 13.5 2.01 71.0 12.0 3.80 13.7 2.73 14.8 1.98 70.0 12.6 3.63 14.2 2.65 15.3 1.97 69.0 13.2 3.48 14.8 2.57 15.9 1.96 65.0 15.5 2.93 17.0 2.29 17.9 1.92 62.0 17.1 2.60 18.5 2.12 19.4 1.86 60.0 18.2 2.29 19.5 2.01 20.3 1.79 56.0 20.2 1.70 21.5 1.56 22.2 1.50 55.0 20.7 1.58 22.0 1.45 22.6 1.40 53.0 21.7 1.36 22.9 1.25 23.4 1.21 52.0 22.2 1.26 23.3 1.16 23.9 1.13 50.0 23.1 1.07 24.2 1.00 24.7 0.97 48.0 24.0 0.91 25.0 0.85 25.4 0.83 45.0 25.3 0.70 26.2 0.65 26.4 0.64 40.0 27.2 0.41 27.9 0.39 37.0 28.3 0.28 28.7 0.26

Min. boom angle 37° 37° 45°

Unit: ton

Boom

ang

le (°

)


Operating Lifting Operating Lifting Operating Lifting radius (m) capacity (kg) radius (m) capacity (kg) radius (m) capacity (kg) 82.0 5.8 2.30 8.7 2.10 11.0 1.40

80.0 7.2 2.30 10.1 2.10 12.3 1.4075.0 10.8 2.30 13.4 1.82 15.3 1.3573.5 11.8 2.30 14.3 1.74 16.2 1.3371.0 13.4 2.30 15.9 1.62 17.6 1.3070.0 14.0 2.30 16.5 1.57 18.2 1.2869.0 14.6 2.28 17.1 1.53 18.7 1.2765.0 17.1 1.95 19.4 1.39 20.8 1.2062.0 18.8 1.76 21.0 1.30 22.4 1.1560.0 20.0 1.65 22.1 1.25 23.3 1.1256.0 22.2 1.47 24.2 1.16 25.2 1.0655.0 22.7 1.37 24.7 1.14 25.6 1.0553.0 23.8 1.17 25.6 1.05 26.5 1.0052.0 24.3 1.08 26.1 0.97 26.9 0.9350.0 25.3 0.92 27.0 0.83 27.7 0.8048.0 26.3 0.77 27.9 0.70 28.5 0.6845.0 27.7 0.58 29.1 0.53 29.5 0.5240.0 29.8 0.33 31.0 0.30 39.0 30.2 0.29 31.4 0.26 38.0 30.6 0.25


Unit: ton

Boom

ang

le (°

)



80.0 8.5 2.00 12.1 1.25 14.9 1.0075.0 12.0 2.00 15.6 1.18 18.1 1.0073.5 13.1 1.87 16.6 1.15 19.0 1.0072.0 14.1 1.75 17.5 1.12 19.9 0.9771.0 14.8 1.70 18.2 1.10 20.5 0.9569.0 16.1 1.58 19.4 1.06 21.6 0.9165.0 18.8 1.40 21.9 1.01 23.8 0.8460.0 21.9 1.20 24.8 0.94 26.4 0.7455.0 24.9 1.10 27.5 0.88 28.7 0.6453.0 26.0 1.03 28.5 0.85 29.6 0.6052.0 26.6 0.95 29.0 0.84 30.0 0.5851.0 27.1 0.87 29.4 0.77 30.5 0.5650.0 27.6 0.80 29.9 0.71 30.9 0.5448.0 28.7 0.67 30.8 0.60 31.6 0.5045.0 30.2 0.50 31.9 0.45 32.6 0.4441.0 32.0 0.32 33.3 0.28 40.0 32.5 0.27 33.6 0.25


Boom length (m) 7.35 12.00 16.66 21.31 25.97 30.62 2.5 25.00 20.30

3.0 25.00 20.30 19.00 14.45 3.5 25.00 20.30 19.00 14.45 4.0 22.40 19.75 19.00 14.45 10.45 4.5 20.00 19.10 18.00 13.85 10.45 5.0 11.50/4.9m 18.50 16.70 13.20 10.45 7.00 5.5 16.90 15.60 12.60 10.45 7.00 6.0 15.50 14.60 12.00 10.00 7.00 6.5 14.30 13.80 11.50 9.60 7.00 7.0 13.20 13.00 10.95 9.20 7.00 7.5 12.20 12.20 10.40 8.80 7.00 8.0 10.65 10.70 9.80 8.40 7.00 8.5 9.35 9.60 9.30 8.05 6.70 9.0 8.25 8.55 8.80 7.70 6.40 9.5 7.20 7.65 8.10 7.40 6.15 10.0 6.90 7.30 7.10 5.90

11.0 5.65 6.05 6.55 5.35 12.0 4.70 5.10 5.55 4.90 13.0 3.90 4.30 4.75 4.50 14.0 3.30 3.70 4.10 4.15 15.0 3.15/14.2m 3.15 3.55 3.85 16.0 2.70 3.10 3.35 17.0 2.30 2.75 2.95 18.0 1.90 2.40 2.60 19.0 1.60/18.8m 2.10 2.35

20.0 1.80 2.10 22.0 1.30 1.60

24.0 1.00/23.5m 1.25 26.0 0.95 28.0 0.70 30.0 0.70/28.2m

Boom and jib geometry shown does not reflect any deflection of boom and jib. Boom deflection and subsequent radius and boom angle change must be accounted for when at actual operation.

331

StationarySwing area 360Boom length (m) 7.35 12.00 16.66 21.31Lifting capacity (ton) 7.65 7.50 7.30 4.50

Lifting capacity Stationary: Max., Operating radius 3.0 m

StationarySwing area Over the frontBoom length (m) 7.35 12.00 16.66 21.31Lifting capacity (ton) 14.00 14.00 9.00 6.50

Stationary: Max., Operating radius 3.0 m

Pick & Carry (under 2 km/h) Swing area 360Boom length (m) 7.35 12.00 16.66 21.31Lifting capacity (ton) 7.65 6.40 5.10 3.20

Pick & Carry: Max., Operating radius 3.0 m

Pick & Carry (under 2 km/h)Swing area Over the frontBoom length (m) 7.35 12.00 16.66 21.31Lifting capacity (ton) 13.80 10.50 7.50 5.50


ReferenceRatings according to Japanese Construction Codes for mobile cranes and Japanese Safety Ordinance on Cranes, etc.Classification of the craneThe crane is classified as follows. (ISO 4301-2 or FEM 1.001):• Operating classification → U2• Collective classification → Q2• Crane group → A1All the major components of the crane are designed and manufactured for standard construction operations. It is assumed that there is a normal working time relation between the maximum usage of the crane, work periods with relatively light usage of the crane, and the rest periods for the machinery; this ratio should be a value which is typical for an erection crane. Under more severe operating conditions, a shorter service life would be inevitable and must be expected. If the crane will be used under uncommon operating conditions or for special tasks which are different from standard assembly work, the prior approval of manufacturer must be obtained; in such a case, it can be assumed that the load carrying capacity will be restricted.

Notes1. The rated crane load is the maximum lifting capacity when the crane is set on firm and level

ground and includes the weight of the hook block, sling wire, etc.Area marked with indicates that the rated load is decided by machine stability.

2. In the area where the chart is blank, crane lifting can not be done there.If the boom is lowered exceeding the minimum boom angle, crane may turnover even withoutload. Take extra care not to do this.

3. If the required boom length for actual work exceeds the specified boom length or one rank above that boom length, whichever the rated load is smaller.

4. The crane load of aux.. sheave is equal to that of the boom rated load minus 25 ton hook weight (200 kg) and limited to 4,000 kg.

5. Operating radius is horizontal distance from swing center to the gravity point of the load.6. Radius shown on the above capacity chart are on actual base taking in account of boom and jib

deflection under loaded condition at 100% of rated load.When using boom only, always refer to radius over your operation.

7. Type of the hooks and their weight is as per the following table.

Kind of hooks 25 ton 4.0 ton Weight 200 kg 70 kg

8. Minimum no. of reeving part of the hook is determined so that the sling line load does not exceed 4,000 kg.The maximum reeving for each boom length is shown bellow.Boom length 7.35 m 12.00 m 16.66 m 21.31 m 25.97 m 30.62 m Jib/aux. sheaveUsed hook 25.0 hook 4.0 ton hook

No. of reeving 7 6 6 4 4 4 1

OPERATION WITHOUT OUTRIGGERS (ON TIRE)1. The rated crane load means the maximum load that the crane can lift when the air pressure of

tires is at the specified pressure on firm and level ground and when the suspension cylinder is retracted to the maximum rate and includes the weight of the hook block and sling wire, etc. The part is decided by the strength of machine and other area are decided by the stability of the crane body.

(Tires specified air pressure: 900 kPa)2. The rated crane load is different in capacity at the forward and lateral directions. When the

crane swings from the forward area to the lateral area, take extra care because the crane may be overloaded.

On tire Stationary lifting Pick and carryAreaα° 1° 1°

3. Do not attempt the operation with jib.4. Operate the lifting work at the fixed position with the parking brake engaged.5. Operate the lifting work during propelling with the high and low selector switch set to the low

range.6. Operate the lifting work during propelling so that it is not swung while holding the load close to

the ground at a speed of 2 km/h or lower. Special care should be taken to the cornering, sudden acceleration and braking.

7. Do not attempt the crane operation through the lifting work during propelling.

OPERATION WITH OUTRIGGERS1. The maximum extension width of outrigger is 6.3 m, medium extension width is 5.9 m, 5.1 m

and 3.8 m. The minimum extension width is 2.12 m for H type and 2.98 m for X type.2. The lifting capacity in side areas may differ depending on the extending condition of outriggers.

If the extension width is different depending on the right and left, front and rear outriggers, carry out operation under the rated crane load according to the right front and rear outriggers with less extension width in the right side area, and the left front and rear outriggers with less extension width in the left side area.For the lifting capacity in the front and rear areas, make sure to work following the rated crane load chart with the outriggers maximum extension. However, the rated crane load indicated by the load safety device in the lateral area is designed to change continuously from the forward, backward to he lateral area by the calculation excluding the outriggers minimum extension width.

Outrigger extension MID extension MID extension MID extension Minimum extension

condition (5.9m) (5.1m) (3.8 m)(H type 2.12 m)(X type 2.98 m)

Area α° 31 27 19H 7X 14

Area β° 31 27 19H 7X 14

3. When using jib, the above chart shows only the actual radius under 30.62 m boom, therefore, always refer to boom angle when operating jib with boom length shorter than 30.62 m.

4. In case of jib work, jib rated load 4.0 ton minus ball hook weight and sling wire rope weight should be used.

5. In case of boom work with jib extended, boom rated load minus lifting sling weight and 1,200 kg should be used in case of 1 to 3 step jib extended condition.

6. Do not use aux. sheave when the jib extended.7. Regarding stability in the oblique direction (outrigger direction), the outrigger float at the

diagonal position against the lifted load may float depending of the condition during lifting work in the oblique direction (Outrigger direction). This phenomenon is caused due to the torsional rigidity of carrier frame and deflection and not by the loss o stability. This crane is set and operated horizontally on firm and level ground through out the work within the rated crane load and the stability is ensured. The oblique (outrigger direction) means the direction of (1) to (4).

WarningRK250 is designed for lifting purpose only. Do not use and/or lift attachments which cause vibration or shock.The machine may be damaged.

OVER FRONT

SteeringNormal steering

4,65

0 m

m

5,46

0 m

m

5,74

0 m

m

R1R2

R3R4

R1=8,500mmR2=8,710mmR3=9,520mm R4=9,800mm

4,650 mm

Cramp steering

R1=4,800 mmR2=5,060 mm R3=5,830 mm R4=6,290 mm

R1R2

R3R4

3,10

0 m

m

4,30

0 m

m

4,76

0 m

m

3,100 mm

4,300 mm

Rear steering

R1

R2

R3 R4

R1=8,500 mmR2=8,710 mmR3=9,390 mmR4=7,510 mm

4,340 mm

5,020 mm

REAR FRONT E/G

5,02

0 m

m

332

SAFETY DEVICECrane SystemMoment limiter (auto-stop)Overhoist prevention device (auto-stop)Swing automatic stop deviceWorking range limit deviceSwing brakeInterceptive lever lock for on and offCheck & Safety MonitorSling wire lockAuxiliary hoist drum cameraOverload state recordEmergency directly connected cable

Travel SystemRear view cameraEmergency steering pumpRear steering auto-lockSuspension lock deviceEngine overrun warning deviceReverse sound alarm Seat belt

STANDARD EQUIPMENTSpotlightsAuxiliary hoist drum/ rear view cameraReverse sound alarmHook block 25t (3-sheave)Hook block 4t (ball)Tacho-graph (analog)ToolsTwist jib hydraulically tiltAuxiliary sheaveCentralized greasing system One way callOutrigger–pads (rubber type)Grease gunAir conditionerMain and auxiliary winchFoot pedals (boom raise/lower, auxiliary hoist)Outrigger control box (left side)Radio and antenna (Japanese type)

OPTIONAL EQUIPMENTTwist jib, manually tiltStowage boxSpare wheel: 385/95 R25Spare rim: 385/95 R25Radio and antenna (on request)Fire extinguisher (on request)ABS (on request)

*Optional equipment may vary by countries.

Note: This catalog may contain photographs of machines with specifications, attachments and optional equipment not certified for operation in your country. Please consult KOBELCO for those items you may require. Due to our policy of continual product improvements all designs and specifications are subject to change without advance notice.Copyright by KOBELCO CRANES CO., LTD. No part of this catalog may be reproduced in any manner without notice.

17-1, Higashigotanda 2-chome, Shinagawa-ku, Tokyo 141-8626 JAPANTel: +81-3-5789-2130 Fax: +81-3-5789-3372

Bulletin No.RK250-7-1 100201IF Printed in Japan

Inquiries To:

KOBELCO is the corporate mark used by Kobe Steel on a variety of productsand in the names of a number of Kobe Steel Group companies.

URL: http://www.kobelco-cranes.com/

General Dimensions (Unit: mm)

WEIGHTTotal weight 25,955 kgFront axle load 12,995 kgRear axle load 13,000 kg

2,070

2,070

*Figures show the H-type outriggers specs, and the values in parenthesis show the X-type outriggers specs.

2,470

7.35m～ 30.62m center of boom foot pin

2,90

522

0(3

15)

3,12

5

8,9603,2954,000

1,665 1,720

3,47

5

2,000 2,000395

(410

)

18.0° 18

.0° (19.

0° )

(19.0° )

2,49

0

Ｒ 2,995

(rear swing radius)

R2,495

(front swing radius)

φ 360

3,040(3,020) 3,310(3,325)270(305)

270(305)3,310(3,325) 3,040(3,020)

(335)

(420

)

cent

er o

f rot

atio

n

H-t

ype

2,12

0 (m

in. e

xten

ded)

X-ty

pe 2

,980

(min

. ext

ende

d)

3,80

0 (m

id. e

xten

ded)

5,10

0 (m

id. e

xten

ded)

5,90

0 (m

id. e

xten

ded)

6,30

0 (m

ax. e

xten

ded)

H-type

X-type

CITY CRANEMax. Lifting Capacity: 25.0 metric ton at 3.5 m Max. Boom Length: 30.62 m

SPECIFICATIONS WIRE ROPE Main Ø 16 mm x 170 m IWRC 6 x Fi (29) C/O anti-twist Aux. Ø 16 mm x 90 m IWRC 6 x WS (26) C/O anti-twist HYDRAULIC SYSTEM 2 variable displacement plunger pumps for travel, and

for travel 3 gear pumps for steering and one gear pump for Hydraulic pumps emergency steering

for crane 2 variable displacement plunger pumps, and 3 gear

pump Hydraulic oil tank 410 liters CARRIER PERFORMANCE Max. travel speed 49 km/h Gradeability High gear: 19 % (11°) /Low gear: 50 % (27°)

Min. turning radius Normal steering 8.5 m Cramp steering 4.8 m

Make/model HINO J08E-TM

Type Water cooled, 4 cycle, 6 cylinders, direct

Engine injection diesel with turbocharger, intercooler

Displacement 7.684 liters Max. output 209 kW/2,100 min-1 {284 PS/2,100 rpm} Max. torque 998 Nm/1,600 min-1 {102 kgf m/1,600 rpm} CARRIER MAIN STRUCTURE Travel drive All wheel drive and steering (4 x 4)

Type HST (Hydrostatic transmission), full-time 4

Transmission wheel drive No. of speed shift CVT by HST + High/Low 2-step

All axles steered and driven by variable displacement hydraulic Axles motors, differential locks for transverse lock. 2-step axle intermediate gearSuspension Hydro-pneumatic suspension (with hydraulic cylinder)

Type All hydraulic power steering with emergency steering

Steering device and about-face steering compensation device Mode Normal (front 2W), clamp (4W), crab (4 W) and rear (2W)

Main service brake Internal expansion drum type with full air

Brake

booster, on all wheels Aux. brake HST brake Parking brake Spring locked type, acting on all wheelsTires (front and rear) 385/95 R25 170E ROAD Fuel tank 300 liters

CRANE PERFORMANCE 7.35 m boom 25,000 kg x 3.5 m (7 parts) 12.00 m boom 20,300 kg x 3.5 m (6 parts) 16.66 m boom 19,000 kg x 4.0 m (6 parts) 21.31 m boom 14,450 kg x 4.0 m (4 parts)

Max. rated load25.97 m boom 10,450 kg x 5.5 m (4 parts)

30.62 m boom 7,000 kg x 8.0 m (4 parts)5.8 m jib 4,000 kg x 10.6 m (1 part)

8.9 m jib 2,300 kg x 14.0 m (1 part) 12.0 m jib 2,000 kg x 12.0 m (1 part) Auxiliary sheave 4,000 kg (1 part)

Max. lifting height 25 t hook (Main boom) 31.5 m

4 t ball hook (Twist jib) 43.2 m

Max. working radius Boom 28.2 m

Jib 33.6 mMain boom length 7.35 m to 30.62 m Boom telescoping speed 100 sec/23.27 m Jib length 5.8 m, 8.9 m, 12.0 m Line speed Main: 122 m/min at 4th layer, Aux.: 107 m/min at 1st layer Line pull 4,200 kg at 5th layer Boom raising speed 49.6 sec/ -8° to 82° Swing speed 1.9 min-1 {1.9 rpm} CRANE MAIN STRUCTURE

Box type, 6 sections, 2nd, 3rd, and 4th singly and 5th Main boom and 6th simultaneous telescoping Hydraulic telescoping, use in combnation with wire rope

Side storage, compressed truss and box type, 2nd and 3rd

Jib drawing out type.

Sky tilt jib: hydraulic no-step tilt type (3° to 45°) Manual jib (optional): 3 step variable tilt type (5°, 25°, 45°)

Aux. sheave Mounted on boom tip, upward storage, hook winding up type Hydraulic motor drive, planetary gear reduction and automatic Winch system brake, independent 2 winches (without free-fall)

High to low variable speedBoom hoist system Direct forced type by double acting hydraulic cylinder (-8°~ 82°)

Swing system Hydraulic motor drive, planetary gear reduction type, with parking (negative) brake, half-free/lock selectable

Type All hydraulic, H-type or X-type Outriggers

Extension width H-type: 6.3 m/5.9 m/5.1 m/3.8 m/2.12 m

X-type: 6.3 m/5.9 m/5.1 m/3.8 m/2.98 m

RK250-7

Note: Optional items shown above may change without notice.

LIFTING CAPACITIES TWIST JIB Main boom length: 30.62 m Jib length: 5.8, 8.9, 12.0 m Outriggers: 6.3 m positionSwing area: 360°

LIFTING CAPACITIES MAIN BOOM Main boom length: 7.35 - 30.62 m Outriggers: 6.3 m position Swing area: 360°

Unit: ton

Oper

atin

g ra

dius

(m)

0 10 20 30

7.35ｍ m boom

12.00 m boom

16.66 m boom

21.31 m boom

25.97 m boom

30.62 m boom

30.62 m boom　　＋ 5.8 m jib

30.62 m boom　　＋ 8.9 m jib

30.62 m boom　　　＋ 12.0 m jib

45° 25°

5°

5.8m jib offset 25° 5.8m jib offset 5° 8.9m jib offset 45° 8.9m jib offset 25° 8.9m jib offset 5° 12.0m jib offset 45° 12.0m jib offset 25° 12.0m jib offset 5°

0°

5°

10°

15°

20°

25°

30°

35°

40°

45° 50°

55° 60°

65° 70°

75° 82°

10

20

30

40

503°

5.8m jib offset 45°

Radius front center of rotation (m)

Heig

ht a

bove

gro

und

(m)

Unit: ton

Boom

ang

le (°

)


Operating Lifting Operating Lifting Operating Lifting radius (m) capacity (kg) radius (m) capacity (kg) radius (m) capacity (kg) 82.0 5.1 4.00 6.9 3.10 8.4 2.13 80.0 6.5 4.00 8.3 3.10 9.6 2.13 75.0 9.7 4.00 11.4 3.10 12.6 2.04 73.5 10.6 4.00 12.3 2.95 13.5 2.01 71.0 12.0 3.80 13.7 2.73 14.8 1.98 70.0 12.6 3.63 14.2 2.65 15.3 1.97 69.0 13.2 3.48 14.8 2.57 15.9 1.96 65.0 15.5 2.93 17.0 2.29 17.9 1.92 62.0 17.1 2.60 18.5 2.12 19.4 1.86 60.0 18.2 2.29 19.5 2.01 20.3 1.79 56.0 20.2 1.70 21.5 1.56 22.2 1.50 55.0 20.7 1.58 22.0 1.45 22.6 1.40 53.0 21.7 1.36 22.9 1.25 23.4 1.21 52.0 22.2 1.26 23.3 1.16 23.9 1.13 50.0 23.1 1.07 24.2 1.00 24.7 0.97 48.0 24.0 0.91 25.0 0.85 25.4 0.83 45.0 25.3 0.70 26.2 0.65 26.4 0.64 40.0 27.2 0.41 27.9 0.39 37.0 28.3 0.28 28.7 0.26


Unit: ton

Boom

ang

le (°

)



80.0 7.2 2.30 10.1 2.10 12.3 1.4075.0 10.8 2.30 13.4 1.82 15.3 1.3573.5 11.8 2.30 14.3 1.74 16.2 1.3371.0 13.4 2.30 15.9 1.62 17.6 1.3070.0 14.0 2.30 16.5 1.57 18.2 1.2869.0 14.6 2.28 17.1 1.53 18.7 1.2765.0 17.1 1.95 19.4 1.39 20.8 1.2062.0 18.8 1.76 21.0 1.30 22.4 1.1560.0 20.0 1.65 22.1 1.25 23.3 1.1256.0 22.2 1.47 24.2 1.16 25.2 1.0655.0 22.7 1.37 24.7 1.14 25.6 1.0553.0 23.8 1.17 25.6 1.05 26.5 1.0052.0 24.3 1.08 26.1 0.97 26.9 0.9350.0 25.3 0.92 27.0 0.83 27.7 0.8048.0 26.3 0.77 27.9 0.70 28.5 0.6845.0 27.7 0.58 29.1 0.53 29.5 0.5240.0 29.8 0.33 31.0 0.30 39.0 30.2 0.29 31.4 0.26 38.0 30.6 0.25


Unit: ton

Boom

ang

le (°

)



80.0 8.5 2.00 12.1 1.25 14.9 1.0075.0 12.0 2.00 15.6 1.18 18.1 1.0073.5 13.1 1.87 16.6 1.15 19.0 1.0072.0 14.1 1.75 17.5 1.12 19.9 0.9771.0 14.8 1.70 18.2 1.10 20.5 0.9569.0 16.1 1.58 19.4 1.06 21.6 0.9165.0 18.8 1.40 21.9 1.01 23.8 0.8460.0 21.9 1.20 24.8 0.94 26.4 0.7455.0 24.9 1.10 27.5 0.88 28.7 0.6453.0 26.0 1.03 28.5 0.85 29.6 0.6052.0 26.6 0.95 29.0 0.84 30.0 0.5851.0 27.1 0.87 29.4 0.77 30.5 0.5650.0 27.6 0.80 29.9 0.71 30.9 0.5448.0 28.7 0.67 30.8 0.60 31.6 0.5045.0 30.2 0.50 31.9 0.45 32.6 0.4441.0 32.0 0.32 33.3 0.28 40.0 32.5 0.27 33.6 0.25


Boom length (m) 7.35 12.00 16.66 21.31 25.97 30.62 2.5 25.00 20.30

3.0 25.00 20.30 19.00 14.45 3.5 25.00 20.30 19.00 14.45 4.0 22.40 19.75 19.00 14.45 10.45 4.5 20.00 19.10 18.00 13.85 10.45 5.0 11.50/4.9m 18.50 16.70 13.20 10.45 7.00 5.5 16.90 15.60 12.60 10.45 7.00 6.0 15.50 14.60 12.00 10.00 7.00 6.5 14.30 13.80 11.50 9.60 7.00 7.0 13.20 13.00 10.95 9.20 7.00 7.5 12.20 12.20 10.40 8.80 7.00 8.0 10.65 10.70 9.80 8.40 7.00 8.5 9.35 9.60 9.30 8.05 6.70 9.0 8.25 8.55 8.80 7.70 6.40 9.5 7.20 7.65 8.10 7.40 6.15 10.0 6.90 7.30 7.10 5.90

11.0 5.65 6.05 6.55 5.35 12.0 4.70 5.10 5.55 4.90 13.0 3.90 4.30 4.75 4.50 14.0 3.30 3.70 4.10 4.15 15.0 3.15/14.2m 3.15 3.55 3.85 16.0 2.70 3.10 3.35 17.0 2.30 2.75 2.95 18.0 1.90 2.40 2.60 19.0 1.60/18.8m 2.10 2.35

20.0 1.80 2.10 22.0 1.30 1.60

24.0 1.00/23.5m 1.25 26.0 0.95 28.0 0.70 30.0 0.70/28.2m

Boom and jib geometry shown does not reflect any deflection of boom and jib. Boom deflection and subsequent radius and boom angle change must be accounted for when at actual operation.

StationarySwing area 360Boom length (m) 7.35 12.00 16.66 21.31Lifting capacity (ton) 7.65 7.50 7.30 4.50

Lifting capacity Stationary: Max., Operating radius 3.0 m

StationarySwing area Over the frontBoom length (m) 7.35 12.00 16.66 21.31Lifting capacity (ton) 14.00 14.00 9.00 6.50

Stationary: Max., Operating radius 3.0 m

Pick & Carry (under 2 km/h) Swing area 360Boom length (m) 7.35 12.00 16.66 21.31Lifting capacity (ton) 7.65 6.40 5.10 3.20


Pick & Carry (under 2 km/h)Swing area Over the frontBoom length (m) 7.35 12.00 16.66 21.31Lifting capacity (ton) 13.80 10.50 7.50 5.50


ReferenceRatings according to Japanese Construction Codes for mobile cranes and Japanese Safety Ordinance on Cranes, etc.Classification of the craneThe crane is classified as follows. (ISO 4301-2 or FEM 1.001):• Operating classification → U2• Collective classification → Q2• Crane group → A1All the major components of the crane are designed and manufactured for standard construction operations. It is assumed that there is a normal working time relation between the maximum usage of the crane, work periods with relatively light usage of the crane, and the rest periods for the machinery; this ratio should be a value which is typical for an erection crane. Under more severe operating conditions, a shorter service life would be inevitable and must be expected. If the crane will be used under uncommon operating conditions or for special tasks which are different from standard assembly work, the prior approval of manufacturer must be obtained; in such a case, it can be assumed that the load carrying capacity will be restricted.

Notes1. The rated crane load is the maximum lifting capacity when the crane is set on firm and level

ground and includes the weight of the hook block, sling wire, etc.Area marked with indicates that the rated load is decided by machine stability.

2. In the area where the chart is blank, crane lifting can not be done there.If the boom is lowered exceeding the minimum boom angle, crane may turnover even withoutload. Take extra care not to do this.

3. If the required boom length for actual work exceeds the specified boom length or one rank above that boom length, whichever the rated load is smaller.

4. The crane load of aux.. sheave is equal to that of the boom rated load minus 25 ton hook weight (200 kg) and limited to 4,000 kg.

5. Operating radius is horizontal distance from swing center to the gravity point of the load.6. Radius shown on the above capacity chart are on actual base taking in account of boom and jib

deflection under loaded condition at 100% of rated load.When using boom only, always refer to radius over your operation.

7. Type of the hooks and their weight is as per the following table.

Kind of hooks 25 ton 4.0 ton Weight 200 kg 70 kg

8. Minimum no. of reeving part of the hook is determined so that the sling line load does not exceed 4,000 kg.The maximum reeving for each boom length is shown bellow.Boom length 7.35 m 12.00 m 16.66 m 21.31 m 25.97 m 30.62 m Jib/aux. sheaveUsed hook 25.0 hook 4.0 ton hook

No. of reeving 7 6 6 4 4 4 1

OPERATION WITHOUT OUTRIGGERS (ON TIRE)1. The rated crane load means the maximum load that the crane can lift when the air pressure of

tires is at the specified pressure on firm and level ground and when the suspension cylinder is retracted to the maximum rate and includes the weight of the hook block and sling wire, etc. The part is decided by the strength of machine and other area are decided by the stability of the crane body.

(Tires specified air pressure: 900 kPa)2. The rated crane load is different in capacity at the forward and lateral directions. When the

crane swings from the forward area to the lateral area, take extra care because the crane may be overloaded.

On tire Stationary lifting Pick and carryAreaα° 1° 1°

3. Do not attempt the operation with jib.4. Operate the lifting work at the fixed position with the parking brake engaged.5. Operate the lifting work during propelling with the high and low selector switch set to the low

range.6. Operate the lifting work during propelling so that it is not swung while holding the load close to

the ground at a speed of 2 km/h or lower. Special care should be taken to the cornering, sudden acceleration and braking.

7. Do not attempt the crane operation through the lifting work during propelling.

OPERATION WITH OUTRIGGERS1. The maximum extension width of outrigger is 6.3 m, medium extension width is 5.9 m, 5.1 m

and 3.8 m. The minimum extension width is 2.12 m for H type and 2.98 m for X type.2. The lifting capacity in side areas may differ depending on the extending condition of outriggers.

If the extension width is different depending on the right and left, front and rear outriggers, carry out operation under the rated crane load according to the right front and rear outriggers with less extension width in the right side area, and the left front and rear outriggers with less extension width in the left side area.For the lifting capacity in the front and rear areas, make sure to work following the rated crane load chart with the outriggers maximum extension. However, the rated crane load indicated by the load safety device in the lateral area is designed to change continuously from the forward, backward to he lateral area by the calculation excluding the outriggers minimum extension width.

Outrigger extension MID extension MID extension MID extension Minimum extension

condition (5.9m) (5.1m) (3.8 m)(H type 2.12 m)(X type 2.98 m)

Area α° 31 27 19H 7X 14

Area β° 31 27 19H 7X 14

3. When using jib, the above chart shows only the actual radius under 30.62 m boom, therefore, always refer to boom angle when operating jib with boom length shorter than 30.62 m.

4. In case of jib work, jib rated load 4.0 ton minus ball hook weight and sling wire rope weight should be used.

5. In case of boom work with jib extended, boom rated load minus lifting sling weight and 1,200 kg should be used in case of 1 to 3 step jib extended condition.

6. Do not use aux. sheave when the jib extended.7. Regarding stability in the oblique direction (outrigger direction), the outrigger float at the

diagonal position against the lifted load may float depending of the condition during lifting work in the oblique direction (Outrigger direction). This phenomenon is caused due to the torsional rigidity of carrier frame and deflection and not by the loss o stability. This crane is set and operated horizontally on firm and level ground through out the work within the rated crane load and the stability is ensured. The oblique (outrigger direction) means the direction of (1) to (4).

WarningRK250 is designed for lifting purpose only. Do not use and/or lift attachments which cause vibration or shock.The machine may be damaged.

OVER FRONT

SteeringNormal steering

4,65

0 m

m

5,46

0 m

m

5,74

0 m

m

R1R2

R3R4

R1=8,500mmR2=8,710mmR3=9,520mm R4=9,800mm

4,650 mm

Cramp steering

R1=4,800 mmR2=5,060 mm R3=5,830 mm R4=6,290 mm

R1R2

R3R4

3,10

0 m

m

4,30

0 m

m

4,76

0 m

m

3,100 mm

4,300 mm

Rear steering

R1

R2

R3 R4

R1=8,500 mmR2=8,710 mmR3=9,390 mmR4=7,510 mm

4,340 mm5,020 mm

REAR FRONT E/G

5,02

0 m

m

SAFETY DEVICECrane SystemMoment limiter (auto-stop)Overhoist prevention device (auto-stop)Swing automatic stop deviceWorking range limit deviceSwing brakeInterceptive lever lock for on and offCheck & Safety MonitorSling wire lockAuxiliary hoist drum cameraOverload state recordEmergency directly connected cable

Travel SystemRear view cameraEmergency steering pumpRear steering auto-lockSuspension lock deviceEngine overrun warning deviceReverse sound alarm Seat belt

STANDARD EQUIPMENTSpotlightsAuxiliary hoist drum/ rear view cameraReverse sound alarmHook block 25t (3-sheave)Hook block 4t (ball)Tacho-graph (analog)ToolsTwist jib hydraulically tiltAuxiliary sheaveCentralized greasing system One way callOutrigger–pads (rubber type)Grease gunAir conditionerMain and auxiliary winchFoot pedals (boom raise/lower, auxiliary hoist)Outrigger control box (left side)Radio and antenna (Japanese type)

OPTIONAL EQUIPMENTTwist jib, manually tiltStowage boxSpare wheel: 385/95 R25Spare rim: 385/95 R25Radio and antenna (on request)Fire extinguisher (on request)ABS (on request)

*Optional equipment may vary by countries.

Note: This catalog may contain photographs of machines with specifications, attachments and optional equipment not certified for operation in your country. Please consult KOBELCO for those items you may require. Due to our policy of continual product improvements all designs and specifications are subject to change without advance notice.Copyright by KOBELCO CRANES CO., LTD. No part of this catalog may be reproduced in any manner without notice.

17-1, Higashigotanda 2-chome, Shinagawa-ku, Tokyo 141-8626 JAPANTel: +81-3-5789-2130 Fax: +81-3-5789-3372

Bulletin No.RK250-7-1 100201IF Printed in Japan

Inquiries To:

KOBELCO is the corporate mark used by Kobe Steel on a variety of productsand in the names of a number of Kobe Steel Group companies.

URL: http://www.kobelco-cranes.com/

General Dimensions (Unit: mm)

WEIGHTTotal weight 25,955 kgFront axle load 12,995 kgRear axle load 13,000 kg

2,070

2,070

*Figures show the H-type outriggers specs, and the values in parenthesis show the X-type outriggers specs.

2,470

7.35m～ 30.62m center of boom foot pin

2,90

522

0(3

15)

3,12

5

8,9603,2954,000

1,665 1,720

3,47

5

2,000 2,000395

(410

)

18.0° 18

.0° (19.

0° )

(19.0° )

2,49

0

Ｒ 2,995

(rear swing radius)

R2,495

(front swing radius)

φ 360

3,040(3,020) 3,310(3,325)270(305)

270(305)3,310(3,325) 3,040(3,020)

(335)

(420

)

cent

er o

f rot

atio

n

H-ty

pe 2

,120

(min

. ext

ende

d)

X-ty

pe 2

,980

(min

. ext

ende

d)

3,80

0 (m

id. e

xten

ded)

5,10

0 (m

id. e

xten

ded)

5,90

0 (m

id. e

xten

ded)

6,30

0 (m

ax. e

xten

ded)

H-type

X-type

25,995kg前軸：12,995kg／後軸：13,000kg

全質量軸　　重

●安全装置

14,450kg×4.0m (4本掛)10,450kg×5.5m (4本掛)7,000kg×8.0m (4本掛)4,000kg×73.5°(1本掛)

4,000kg(1本掛)

19,000kg×4.0m (6本掛)16.66mブーム21.31mブーム25.97mブーム30.62mブーム5.8mジブ

2,300kg×70°(1本掛)8.9mジブ2,000kg×75°(1本掛)12.0mジブ

補助シーブ

主フックジブフックブームジブ

■クレーン主要諸元●クレーン性能 ●キャリヤ性能

最大定格総荷重

最高走行速度登坂能力

巻上ロープ速度

7.35mブーム12.00mブーム

ブーム長さジブ長さ

フック最大地上揚程

ブーム伸長速度ブーム上げ速度

旋回速度

ブーム形式

ジブ形式

ブーム起伏装置

巻上装置

旋回装置

主巻用補巻用

油圧ポンプ形式作動油タンク容量

過負荷防止装置(自動停止)､過巻防止装置(自動停止)､旋回領域制限機能､旋回自動停止装置､作業領域制限装置､マルチディスプレイ(含後方確認カメラ､ドラム監視カメラ)､アウトリガ張出幅自動検出装置､旋回警告灯､乗降遮断式レバーロック､チェック&セフティモニター､玉掛けワイヤ外れ止め装置､油圧安全弁､ブーム伸縮保安装置､ブーム伸縮順序誤作動自動停止装置､ブーム起伏保安装置､巻上保安装置､アウトリガ保安装置､ワンウェイコール､過負荷外部表示灯(角形)

形　　式

張出幅アウトリガ

25,000kg×3.5m (7本掛) 49km/hHigh：tanθ 0.19 (11°)／Low：tanθ 0.5 (27°)8.5m4.8m日野J08E-TM水冷4サイクル直列6気筒､インタークーラターボ付直接噴射式ディーゼル7.684L209kW/2,100min-1{284PS/2,100rpm}998N･m/1,600min-1{102kgf･m/1,600rpm}

4輪駆動(4×4)式静油圧変速機High／Low切換付車軸2段減速式全浮動式ハイドロニューマチックサスペンション全油圧パワーステアリング非常用ステアリング装置､逆ステアリング補正装置付ノーマル(前2輪)/クランプ(4輪)/クラブ(4輪)/リヤ(後2輪)空気圧制動4輪制動内部拡張ドラム式油圧ブレーキ機能空気式車輪制動形スプリングブレーキ385/95 R25 170E ROAD300L

8,960mm2,490mm3,475mm4,000mm前輪：2,070mm／後輪：2,070mm3,295mm1,665mm

20,300kg×3.5m (6本掛)

7.35m～30.62m5.8ｍ／8.9m／12.0m

31.5m43.2m28.2m33.6m

主　巻補　巻

最大作業半径

122m/min(4層目)107m/min(2層目)

100sec/23.27m49.6sec/－8～82°

後端旋回半径 2,995mm1.9min-1{1.9rpm}

箱型6段式(2～4段単独伸縮､5･6段同時伸縮)ワイヤロープ併用油圧伸縮式

圧縮トラス式､2･3段箱型引出し式横抱下張出式ツイストジブスカイチルトジブ：油圧無段階傾斜式(3°～45°)マニュアルジブ(オプション)：3段可変傾斜式(5°／25°／45°)

複動油圧シリンダ1本直押式(－8～82°)補助シーブ形式ブーム先端取付､フック巻切り上方格納式

油圧モータ独立ウインチ2基駆動､遊星歯車減速式(フリーフォールレス)

油圧モータ駆動遊星歯車減速式､半フリー/ロック切換式､ネガブレーキ付全油圧式H型またはX型

IWRC 6×Fi(29) C/O難撚性 φ16mm×170mIWRC 6×WS(26) C/O難撚性 φ16mm×90m

2連可変プランジャ+3連ギヤ410L

●クレーン主要機構

●ワイヤロープ

●油圧装置

■キャリヤ主要諸元

2輪操向4輪操向名　　称

形　　式

総排気量最大出力最大トルク

走行駆動方式

変速機形式

減速機形式車軸および懸架方式

形　　式ステアリング

モード主ブレーキ補助ブレーキ駐車ブレーキ

ブレーキ

タイヤ燃料タンク容量

全　　　長全　　　幅全　　　高ホイールベーストレッドフロントオーバーハングリヤオーバーハング

1名

非常用ステアリング装置､リヤステオートロック､サスペンションロック装置､エンジンオーバーラン警報装置､後進ボイスアラーム､左折ボイスアラーム､後方確認カメラ&モニタ､タイヤ歯止め

最　　小回転半径

エンジン

●キャリヤ主要機構

●走行時寸法

●車両質量

●乗車定員

●安全装置

単位は国際単位系のSI単位表示で{ }内は従来表示です｡

H型：6.3m／5.9m／5.1m／3.8m／2.12mX型：6.3m／5.9m／5.1m／3.8m／2.98m

縮尺1/80

■外形寸法図 (単位：mm）

2,470

2,070

2,070

8,960

3,2954,000

1,665 1,7203,475

2,490

Ｒ2,995(後

端旋回半径）

Ｒ2,995(後

端旋回半径）

6,300(最大張出)

5,900(中間張出)

5,100(中間張出)

3,800(中間張出)

H型 2,120(最小張出)

X型 2,980(最小張出)

旋回中心

R2,495φ 360

3,040(3,020) 3,310(3,325)270(305)

270(305)3,310(3,325) 3,040(3,020)

2,000 2,000

395

(410)

18.0°

18.0°(19.0°)

7.35m～3

0.62m ブームフットピン中心

※図はH型アウトリガで､(　　)内の値はX型アウトリガを示します｡

2,905

220

(315)

3,125

X型

H型

(19.0°)

(335)

(420)

1 RK250-7

2RK250-7

本図にはブーム及びジブのたわみを含んでいません｡本図はアウトリガ最大張出時(全周)のものです｡■作動範囲図　　　　　　　　　　　　　　　

0 10 20 30

7.35ｍブーム

12.00ｍブーム

16.66ｍブーム

21.31ｍブーム

25.97ｍブーム

30.62ｍブーム

30.62ｍブーム　　＋5.8ｍジブ

30.62ｍブーム　　＋8.9ｍジブ

30.62ｍブーム　　　＋12.0ｍジブ

45° 25°

5°

5.8mジブオフセット25°








0°

5°

10°

15°

20°

25°

30°

35°

40°

45°

50°

55°

60°

65°

70° 75°

82°

10

20

30

40

50

3°


作業半径（ｍ）

（ｍ）

揚　程

■定格総荷重 (単位：t）

●主ブーム/アウトリガ使用時アウトリガ張出幅

作業半径(m)

2.53.03.54.04.55.05.56.06.57.07.58.08.59.09.510.011.012.013.014.015.016.017.018.019.020.022.024.026.028.030.0

最小ブーム角度

ブーム長さ(m)

アウトリガ最大(6.3m)張出/全周

7.35

25.00 25.00 25.00 22.40 20.00 11.50/4.9m

0°

20.30 20.30 20.30 19.75 19.10 18.50 16.90 15.50 14.30 13.20 12.20 10.65 9.35 8.25 7.20

0°

19.00 19.00 19.00 18.00 16.70 15.60 14.60 13.80 13.00 12.20 10.70 9.60 8.55 7.65 6.90 5.65 4.70 3.90 3.30

3.15/14.2m

0°

14.45 14.45 14.45 13.85 13.20 12.60 12.00 11.50 10.95 10.40 9.80 9.30 8.80 8.10 7.30 6.05 5.10 4.30 3.70 3.15 2.70 2.30 1.90

1.60/18.8m

0°

10.45 10.45 10.45 10.45 10.00 9.60 9.20 8.80 8.40 8.05 7.70 7.40 7.10 6.55 5.55 4.75 4.10 3.55 3.10 2.75 2.40 2.10 1.80 1.30

1.00/23.5m

0°

7.00 7.00 7.00 7.00 7.00 7.00 7.00 6.70 6.40 6.15 5.90 5.35 4.90 4.50 4.15 3.85 3.35 2.95 2.60 2.35 2.10 1.60 1.25 0.95 0.70

0.70/28.2m0°

25.00 25.00 25.00 22.40 20.00 11.50/4.9m

0°

20.30 20.30 20.30 19.75 19.10 18.50 16.90 15.50 14.30 12.45 10.75 9.35 8.25 7.30 6.35

0°

19.00 19.00 19.00 18.00 16.70 15.60 14.60 13.80 12.70 11.00 9.60 8.50 7.55 6.75 6.10 5.00 4.10 3.45 2.85

2.70/14.2m

0°

14.45 14.45 14.45 13.85 13.20 12.60 12.00 11.50 10.95 10.40 9.80 8.95 8.00 7.20 6.50 5.40 4.50 3.80 3.25 2.75 2.30 1.90 1.55

1.25/18.8m

0°

10.45 10.45 10.45 10.45 10.00 9.60 9.20 8.80 8.40 8.05 7.70 7.40 7.00 5.85 4.95 4.25 3.65 3.15 2.75 2.40 2.05 1.75 1.45 1.00

0.75/23.5m

0°

7.00 7.00 7.00 7.00 7.00 7.00 7.00 6.70 6.40 6.15 5.90 5.35 4.90 4.50 3.95 3.45 3.00 2.65 2.35 2.05 1.80 1.35 0.95 0.65

23°

25.00 25.00 25.00 22.40 20.00 11.50/4.9m

0°

20.30 20.30 20.30 19.75 19.10 18.50 15.95 13.20 11.20 9.60 8.30 7.25 6.40 5.65 4.90

0°

19.00 19.00 19.00 18.00 16.70 15.60 13.40 11.40 9.80 8.55 7.50 6.65 5.90 5.25 4.75 3.85 3.15 2.50 1.95

1.85/14.2m

0°

14.45 14.45 14.45 13.85 13.20 12.60 12.00 11.50 10.30 9.00 7.95 7.05 6.30 5.70 5.15 4.20 3.50 2.95 2.45 1.95 1.55 1.25 0.95

0.70/18.8m

0°

10.45 10.45 10.45 10.45 10.00 9.60 9.20 8.80 8.40 7.55 6.80 6.15 5.60 4.65 3.95 3.35 2.85 2.45 2.05 1.70 1.40 1.15 0.90 0.55

22°

7.00 7.00 7.00 7.00 7.00 7.00 7.00 6.70 6.40 6.15 5.90 4.95 4.20 3.60 3.15 2.70 2.35 2.05 1.75 1.50 1.25 0.85 0.55

32°

12.00 16.66 21.31 25.97 30.62 7.35 12.00 16.66 21.31 25.97 30.62

アウトリガ中間(5.9m)張出/側方

7.35 12.00 16.66 21.31 25.97 30.62


アウトリガ張出幅

作業半径(m)

ブーム長さ(m)


7.35

25.00 25.00 25.00 19.10 14.85 11.50/4.9m

0°

20.30 20.30 20.30 18.55 14.45 11.65 9.60 8.10 6.90 5.90 5.10 4.45 3.85 3.35 2.85

0°

19.00 19.00 18.80 14.65 11.85 9.80 8.25 7.05 6.10 5.30 4.65 4.10 3.60 3.20 2.80 2.10 1.50 1.05 0.65

0.55/14.2m

0°

14.45 14.45 14.45 13.85 12.35 10.30 8.75 7.50 6.55 5.70 5.05 4.45 4.00 3.55 3.20 2.55 1.95 1.50 1.10 0.75

37°

10.45 10.45 10.45 10.45 9.25 8.00 7.00 6.20 5.50 4.90 4.40 3.95 3.60 2.95 2.45 1.95 1.55 1.20 0.90 0.65

44°

7.00 7.00 7.00 7.00 7.00 6.50 5.80 5.20 4.70 4.25 3.90 3.25 2.70 2.30 1.90 1.55 1.25 1.00 0.75 0.55

47°

13.15 13.15 9.90 7.75 6.20

5.05/4.9m

0°

12.85 12.85 9.65 7.50 6.00 4.90 4.05 3.35 2.85 2.25 1.80 1.35 1.00 0.70

22°

12.00 9.80 7.70 6.20 5.05 4.20 3.50 2.90 2.45 2.00 1.60 1.25 0.90 0.65

47°

10.30 10.30 8.15 6.60 5.45 4.55 3.85 3.30 2.80 2.45 2.05 1.65 1.35 1.05 0.85

57°

8.50 6.95 5.80 4.90 4.20 3.60 3.15 2.75 2.40 2.15 1.85 1.55 1.30 0.90 0.55

58°

5.90 5.05 4.35 3.75 3.30 2.90 2.55 2.25 2.00 1.80 1.60 1.20 0.85 0.55

62°

12.00 16.66 21.31 25.97 30.62 7.35 12.00 16.66 21.31 25.97 30.62

アウトリガ最小(H型2.12m)張出/側方

25.0022.10 15.95 12.209.70

8.05/4.9m

0°

20.3015.3511.759.357.606.355.304.503.853.302.802.402.001.55

0°

19.0015.6011.959.557.806.505.504.654.003.453.002.652.251.901.551.000.55

33°

14.4514.4512.5010.008.256.905.905.054.403.803.352.952.602.302.001.451.000.60

46°

10.4510.4510.458.757.406.355.504.804.253.753.302.952.652.351.951.501.100.750.50

50°

7.007.006.655.805.104.504.003.603.252.902.602.151.751.401.100.800.60

55°

7.35 12.00 16.66 21.31 25.97 30.62

アウトリガ最小(X型2.98m)張出/側方

3 RK250-7

2.53.03.54.04.55.05.56.06.57.07.58.08.59.09.510.011.012.013.014.015.016.017.018.019.020.0


アウトリガ最大張出幅は6.3m､中間張出幅は5.9m､5.1mおよび3.8mです｡また､最小張出幅はH型の場合2.12m､X型の場合2.98mです｡アウトリガ張出状態によって､側方域でのつり上げ性能は異なります｡左右前後で張出幅が異なる場合は､右側領域では右側前後で張出幅が少ない方､左側領域では左側前後で張出幅が少ない方の定格総荷重で作業を行ってください｡前方､後方領域でのつり上げ性能は､アウトリガ最大張出の定格総荷重で作業を行ってください｡ただし､過負荷防止装置が側方領域で表示する定格総荷重は､アウトリガ最大張出幅以外では計算により､前方､後方から側方領域へ連続的に変化するようにしています｡

●H型アウトリガ

●X型アウトリガ

ジブ作業においては､ブーム角度を基準として行ってください｡なお､作業半径はブーム長さ30.62mにジブを装着した場合の参考値を示しています｡ジブ作業を行う場合は､ジブの定格総荷重より4.0tボールフックおよび玉掛けワイヤ等の質量を差し引いてください｡ジブを張出したままでブーム作業を行う場合は､主ブームの定格総荷重からつり具等の質量のほかに､1段ジブ､2段ジブ､3段ジブ張出時ともに1,200kgを差し引いてください｡ジブを張出した状態で補助シーブを使用しないでください｡操作ミスなどによるつり荷の落下を防ぐため､クレーン作業では自由降下作業は行わないでください｡斜め方向(アウトリガ方向)でのつり上げ作業で､条件によってつり荷と対角側のアウトリガフロートが浮く場合があります｡これはキャリアフレームの捩れ剛性やタワミ等によるものであり､安定度を失ったものではありません｡本機は定格総荷重内の作業においては､水平堅土上において機体を水平に設置した状態で安定度は確保されています｡斜め方向(アウトリガ方向)とは､○1 ～○4 の方向です｡

定格総荷重は､水平堅土上においてタイヤの空気圧が規定圧(900kPa{9.00kg/cm2})で､かつ､サスペンションシリンダを最も縮小にした場合に本機の保証できる最大荷重を示しており､フックおよび玉掛けワイヤ等の質量を含んでいます｡の部分は機械の強度によって定められ､他は機械の安定によって定められています｡前方性能と側方性能とで定格総荷重が異なります｡前方領域から側方領域へ旋回する場合には、過荷重になる恐れがありますので十分注意してください｡

ジブ作業は､行わないでください｡定置づり作業は､パーキングブレーキを効かせた状態で行ってください｡走行づりは､ハイ/ロー切換えスイッチをローレンジにして行ってください｡走行づりは､荷が振れないように地面近くに保持し､2km/h以下で行ってください｡特にコーナリング､急発進､急制動に注意してください｡走行づり中には､クレーン作業は行わないでください｡

定格総荷重は､水平堅土上において機体を水平に設置した状態で転倒荷重の78％を超えない値に基づくものであり､かつ移動式クレーン構造規格第14条における前方安定度も満足する値で､フックおよび玉掛けワイヤ等の質量を含んでいます｡の部分は機械の強度によって定められ､他は機械の安定によって定められています｡定格総荷重をつる場合にも風の影響､地盤の状態､作業速度､その他安全に有害な状況がある時は､オペレータは荷重の軽減､作業速度を遅くするなど状況に応じた判断をする責任があります。定格総荷重において空欄となっている部分では､作業を行うことはできません｡また､ブームを最小角度以下に倒しますと､無負荷で転倒する恐れもありますので､十分注意してください｡ブームの長さが､規定の長さを超える場合には､規定の長さまたは1段上のブームの長さのいずれか､小さい方の定格総荷重で作業を行ってください｡補助シーブの定格総荷重は､主ブームの定格総荷重から25tフックの質量(200kg)を差し引いた値と等しく､かつ限度を4,000kgとします｡作業半径とは､旋回中心よりつり上げ荷重の重心までの水平距離を意味します｡作業半径は､ブームのたわみを含んだ実際の値に基づいていますので､必ず作業半径を基準として作業を行ってください｡フックの種類と質量は下表の通りです｡

フックの最小巻掛本数は､ワイヤロープ1本当たり4,000kgを超えない範囲で決定しますが､各ブーム長さに対する標準巻掛本数は下記の通りです｡

■注意事項●定格総荷重について○1

○2

○3

○4

○5○6

○7

○8

フックの種類

巻掛本数

7.35m 12.00m 16.66m 21.31m 25.97m 30.62m 補助シーブ

200kg

25tフック

7 6 6 4 4 4 1

70kg

4.0t

フック質量

ブーム長さ

●アウトリガ使用時について○1

○2

○3

○4

○5

○6○7

○8

アウトリガ張出幅状態

前方領域α°

後方領域β°

中間張出(5.9m)

31°

31°

中間張出(5.1m)

27°

27°

中間張出(3.8m)

19°

19°

最小張出(2.12m)

7°

7°

●アウトリガ不使用時について○1

○2

○3○4○5○6

○7

フック質量

25tフック 4.0tフック

70kg200kg

フックの種類

領域α°

定置づり走行づり

1°1°

オンタイヤ

アウトリガ張出幅状態

前方領域α°

後方領域β°

中間張出(5.9m)

31°

31°

中間張出(5.1m)

27°

27°

中間張出(3.8m)

19°

19°

最小張出(2.98m)

14°

14°

4RK250-7


●主ブーム/アウトリガ不使用時

作業領域ブーム長さ

(m)作業半径(m)

3.03.54.04.5

5.55.0

6.06.57.08.09.010.011.012.013.014.015.0


全　周作業条件定置づり

7.35

7.656.05 4.80 3.80

2.85/4.9m

0°

7.50 5.85 4.60 3.60 2.85 2.30 1.95 1.60 1.20 0.55

34°

7.30 5.75 4.55 3.50 2.80 2.25 1.85 1.55 1.20 0.65

54°

4.50 4.50 4.50 3.90 3.35 2.80 2.30 1.95 1.60 1.00 0.60

0.40/9.5m

58°

14.00 14.00 12.60 11.10 10.05/4.9m

0°

14.00 14.00 12.60 11.10 9.75 8.40 7.10 6.00 5.10 3.70 2.70

2.15/9.5m

0°

9.00 9.00 9.00 9.00 9.00 7.75 6.75 5.90 5.00 3.70 2.80 2.10 1.50 1.05 0.70

25°

6.50 6.50 6.50 6.50 6.50 6.50 6.05 5.55 5.05 4.05 3.20 2.50 1.95 1.50 1.10 0.80 0.55 37°

7.65 6.05 4.80 3.80

2.85/4.9m

0°

6.40 5.85 4.60 3.60 2.85 2.30 1.95 1.60 1.20 0.55

34°

5.10 5.10 4.40 3.50 2.80 2.25 1.85 1.55 1.20 0.65

54°

3.20 3.20 3.20 3.20 3.20 2.80 2.30 1.95 1.60 1.00 0.60

0.40/9.5m

58°

13.80 12.25 10.90 9.75

8.75/4.9m

0°

10.50 10.50 10.50 9.25 8.05 6.90 5.80 4.95 4.25 3.20 2.45

2.05/9.5m

0°

7.50 7.50 7.50 7.50 7.50 6.65 5.90 5.05 4.35 3.35 2.60 2.05 1.50 1.05 0.70

25°

5.50 5.50 5.50 5.50 5.50 5.50 5.50 5.05 4.55 3.60 2.85 2.30 1.85 1.50 1.10 0.80 0.55 37°

12.00 16.66 21.31

前　方

7.35 12.00 16.66 21.31

全　周

7.35 12.00 16.66 21.31

前　方

7.35 12.00 16.66 21.31

走行づり(2km/h以下)

ジ　ブ角　度

ブーム角　度

定　格総荷重

定　格総荷重

定　格総荷重

12.0mジブ

作業半径(m)

作業半径(m)

3～5°作業半径(m)

25° 45°3～5°作業半径(m)

ジ　ブ角　度

ブーム角　度

3～5°

7.1 8.5 12.0 13.1 14.1 14.8 16.1 18.8 21.9 24.9 26.0 26.6 27.1 27.6 28.7 30.2 30.7 31.1

2.00 2.00 2.00 1.87 1.75 1.70 1.58 1.40 1.20 1.01 0.85 0.77 0.70 0.63 0.51 0.35 0.30 0.26

82.080.075.073.572.071.069.065.060.055.053.052.051.050.048.045.044.043.0

82.080.075.073.572.071.069.065.060.055.053.052.051.050.048.045.041.040.0


82.080.075.073.571.070.069.065.062.060.056.055.053.052.050.048.045.040.039.038.0最小ブーム角度

ジ　ブ角　度

ブーム角　度

82.080.075.073.571.070.069.065.062.060.056.055.053.052.050.048.045.040.037.0


アウトリガ最大(6.3m)張出/全周5.8mジブ

5.1 6.5 9.710.6 12.0 12.6 13.2 15.5 17.1 18.2 20.2 20.7 21.7 22.2 23.1 24.0 25.3 27.2 28.3

37°

4.00 4.00 4.00 4.00 3.80 3.63 3.48 2.93 2.60 2.29 1.70 1.58 1.36 1.26 1.07 0.91 0.70 0.41 0.28

作業半径(m)

定　格総荷重

6.9 8.3 11.4 12.3 13.7 14.2 14.8 17.0 18.5 19.5 21.5 22.0 22.9 23.3 24.2 25.0 26.2 27.9 28.7

3.10 3.10 3.10 2.95 2.73 2.65 2.57 2.29 2.12 2.01 1.56 1.45 1.25 1.16 1.00 0.85 0.65 0.39 0.26

37°

8.4 9.6 12.6 13.5 14.8 15.3 15.9 17.9 19.4 20.3 22.2 22.6 23.4 23.9 24.7 25.4 26.4

45°

2.13 2.13 2.04 2.01 1.98 1.97 1.96 1.92 1.86 1.79 1.50 1.40 1.21 1.13 0.97 0.83 0.64

5.8 7.2 10.8 11.8 13.4 14.0 14.6 17.1 18.8 20.0 22.2 22.7 23.8 24.3 25.3 26.3 27.7 29.8 30.2 30.6

作業半径(m)

定　格総荷重

8.7 10.1 13.4 14.3 15.9 16.5 17.1 19.4 21.0 22.1 24.2 24.7 25.6 26.1 27.0 27.9 29.1 31.0 31.4

39°

2.10 2.10 1.82 1.74 1.62 1.57 1.53 1.39 1.30 1.25 1.16 1.14 1.05 0.97 0.83 0.70 0.53 0.30 0.26

11.0 12.3 15.3 16.2 17.6 18.2 18.7 20.8 22.4 23.3 25.2 25.6 26.5 26.9 27.7 28.5 29.5

45°

1.40 1.40 1.35 1.33 1.30 1.28 1.27 1.20 1.15 1.12 1.06 1.05 1.00 0.93 0.80 0.68 0.52

7.18.5 12.0 13.1 14.1 14.8 16.1 18.8 21.9 24.9 26.0 26.6 27.1 27.6 28.7 30.2 32.0 32.5

40°

2.00 2.00 2.00 1.87 1.75 1.70 1.58 1.40 1.20 1.10 1.03 0.95 0.87 0.80 0.67 0.50 0.32 0.27

10.7 12.1 15.6 16.6 17.5 18.2 19.4 21.9 24.8 27.5 28.5 29.0 29.4 29.9 30.8 31.9 33.3 33.6

40°

1.25 1.25 1.18 1.15 1.12 1.10 1.06 1.01 0.94 0.88 0.85 0.84 0.77 0.71 0.60 0.45 0.28 0.25

13.6 14.9 18.1 19.0 19.9 20.5 21.6 23.8 26.4 28.7 29.6 30.0 30.5 30.9 31.6 32.6

45°

1.00 1.00 1.00 1.00 0.97 0.95 0.91 0.84 0.74 0.64 0.60 0.58 0.56 0.54 0.50 0.44


定　格総荷重

25° 45° ジ　ブ角　度

ブーム角　度

8.9mジブ

作業半径(m)

定　格総荷重

作業半径(m)

定　格総荷重


定　格総荷重

定　格総荷重

定　格総荷重

定　格総荷重

25° 45° ジ　ブ角　度

ブーム角　度

12.0mジブ

作業半径(m)

作業半径(m)


25° 45°


5.1 6.5 9.7 10.6 12.0 12.6 13.2 15.5 17.1 18.2 20.2 20.7 21.7 22.2 23.0 23.9 25.2 26.7

4.00 4.00 4.00 4.00 3.80 3.63 3.48 2.89 2.34 2.01 1.45 1.34 1.13 1.03 0.86 0.71 0.51 0.29

41°

6.9 8.3 11.4 12.3 13.7 14.2 14.8 17.0 18.5 19.5 21.5 22.0 22.9 23.3 24.2 25.0 26.2 27.7

3.10 3.10 3.10 2.95 2.73 2.65 2.57 2.29 2.11 1.81 1.33 1.23 1.04 0.95 0.79 0.65 0.47 0.27

41°

8.49.6 12.6 13.5 14.8 15.3 15.9 17.9 19.4 20.3 22.2 22.6 23.4 23.9 24.7 25.4 26.4

2.13 2.13 2.04 2.01 1.98 1.97 1.96 1.92 1.86 1.72 1.27 1.18 1.00 0.92 0.77 0.64 0.46

45°

5.8 7.2 10.8 11.8 13.4 14.0 14.6 17.1 18.8 20.0 22.2 22.7 23.8 24.3 26.3 27.7 28.5 29.0

2.30 2.30 2.30 2.30 2.30 2.30 2.28 1.95 1.76 1.65 1.25 1.15 0.97 0.73 0.59 0.41 0.31 0.26

42°

8.7 10.1 13.4 14.3 15.9 16.5 17.1 19.4 21.0 22.1 24.2 24.7 25.6 27.0 27.9 29.1 29.9

2.10 2.10 1.82 1.74 1.62 1.57 1.53 1.39 1.30 1.25 1.11 1.02 0.86 0.65 0.53 0.37 0.28

43°

11.0 12.3 15.3 16.2 17.6 18.2 18.7 20.8 22.4 23.3 25.2 25.6 26.5 27.7 28.5 29.5

1.40 1.40 1.35 1.33 1.30 1.28 1.27 1.20 1.15 1.12 1.05 0.97 0.82 0.63 0.52 0.37

43°

10.7 12.1 15.6 16.6 17.5 18.2 19.4 21.9 24.8 27.5 28.5 29.0 29.4 29.9 30.8 31.9 32.3

1.25 1.25 1.18 1.15 1.12 1.10 1.06 1.01 0.94 0.88 0.74 0.67 0.61 0.56 0.45 0.31 0.27

44°

13.6 14.9 18.1 19.0 19.9 20.5 21.6 23.8 26.4 28.7 29.6 30.0 30.5 30.9 31.6 32.6

1.00 1.00 1.00 1.00 0.97 0.95 0.91 0.84 0.74 0.64 0.60 0.58 0.56 0.53 0.44 0.30

45°

38°

2.30 2.30 2.30 2.30 2.30 2.30 2.28 1.95 1.76 1.65 1.47 1.37 1.17 1.08 0.92 0.77 0.58 0.33 0.29 0.25

5 RK250-7

82.080.075.073.571.070.069.065.062.060.056.055.053.052.050.048.045.041.0最小ブーム角度

82.080.075.073.571.070.069.065.062.060.056.055.053.050.048.045.043.042.0最小ブーム角度 45° 最小ブーム

角度


●ジブ(マニュアルジブの最小オフセット角度は5°になります)

5.8mジブ

作業半径(m)

定　格総荷重

作業半径(m)

定　格総荷重

作業半径(m)

定　格総荷重

25° 45° ジ　ブ角　度

ブーム角　度

8.9mジブ

定　格総荷重

作業半径(m)

定　格総荷重

作業半径(m)

定　格総荷重

25° 45°

ジ　ブ角　度

ブーム角　度

定　格総荷重

定　格総荷重

定　格総荷重

12.0mジブ

作業半径(m)

作業半径(m)


25° 45°3～5°作業半径(m)

ジ　ブ角　度

ブーム角　度

3～5°5.8mジブ

作業半径(m)

定　格総荷重

作業半径(m)

定　格総荷重

作業半径(m)

定　格総荷重

25° 45° ジ　ブ角　度

ブーム角　度

8.9mジブ

定　格総荷重

作業半径(m)

定　格総荷重

作業半径(m)

定　格総荷重

25° 45°

ジ　ブ角　度

ブーム角　度

定　格総荷重

定　格総荷重

定　格総荷重

12.0mジブ

作業半径(m)

作業半径(m)


25° 45°3～5°作業半径(m)

ジ　ブ角　度

ブーム角　度

3～5°5.8mジブ

作業半径(m)

定　格総荷重

作業半径(m)

定　格総荷重

作業半径(m)

定　格総荷重

25° 45° ジ　ブ角　度

ブーム角　度

8.9mジブ

定　格総荷重

作業半径(m)

定　格総荷重

作業半径(m)

定　格総荷重

25° 45°

82.080.075.073.571.070.069.065.062.060.056.055.053.052.050.049.048.0最小ブーム角度


5.1 6.5 9.7 10.6 12.0 12.6 13.2 15.5 17.1 18.2 20.2 20.7 21.7 22.2 23.0 23.4 23.9

48°

6.9 8.3 11.4 12.3 13.7 14.2 14.8 17.0 18.5 19.5 21.5 22.0 22.9 23.3 24.2 24.6

3.10 3.10 3.10 2.95 2.73 2.65 2.57 1.98 1.52 1.26 0.84 0.75 0.58 0.51 0.37 0.30

49°

8.4 9.6 12.6 13.5 14.8 15.3 15.9 17.9 19.4 20.3 22.2 22.6 23.4 23.9 24.6 24.9

2.13 2.13 2.04 2.01 1.98 1.97 1.96 1.84 1.42 1.19 0.80 0.71 0.56 0.49 0.36 0.29

49°

5.8 7.2 10.8 11.8 13.4 14.0 14.6 17.1 18.8 20.0 22.2 22.7 23.8 24.3 25.3 25.8

2.30 2.30 2.30 2.30 2.30 2.30 2.28 1.95 1.47 1.21 0.78 0.69 0.53 0.46 0.32 0.26

49°

8.7 10.1 13.4 14.3 15.9 16.5 17.1 19.4 21.0 22.1 24.2 24.7 25.5 26.0 26.8

2.10 2.10 1.82 1.74 1.62 1.57 1.53 1.39 1.25 1.04 0.68 0.60 0.46 0.40 0.28

50°

1.40 1.40 1.35 1.33 1.30 1.28 1.27 1.20 1.15 0.96 0.64 0.57 0.44 0.38 0.26

11.0 12.3 15.3 16.2 17.6 18.2 18.7 20.8 22.4 23.3 25.2 25.6 26.5 26.9 27.6

50°

7.1 8.5 12.0 13.1 14.1 14.8 16.1 18.8 21.9 24.9 26.0 26.6 27.1 27.6

2.00 2.00 2.00 1.87 1.75 1.70 1.58 1.40 1.06 0.60 0.46 0.39 0.33 0.27

50°

10.7 12.1 15.6 16.6 17.5 18.2 19.4 21.9 24.8 27.5 28.5 29.0 29.3

1.25 1.25 1.18 1.15 1.12 1.10 1.06 1.01 0.89 0.51 0.38 0.33 0.27

51°

13.6 14.9 18.1 19.0 19.9 20.5 21.6 23.8 26.4 28.7 29.6 30.0 30.5

1.00 1.00 1.00 1.00 0.97 0.95 0.91 0.84 0.74 0.47 0.36 0.31 0.26

51°


5.1 6.5 9.7 10.6 12.0 12.6 13.2 15.5 17.1 18.2 19.1 19.6

4.00 4.00 3.71 3.15 2.43 2.19 1.96 1.19 0.78 0.55 0.35 0.26

57°

6.9 8.3 11.4 12.3 13.7 14.2 14.8 17.0 18.5 19.4 20.4

3.10 3.10 3.03 2.62 2.07 1.87 1.67 1.04 0.68 0.47 0.30

58°

8.4 9.6 12.6 13.5 14.8 15.3 15.9 17.9 19.4 20.2 21.1

2.13 2.13 2.04 2.01 1.87 1.69 1.52 0.96 0.63 0.44 0.27

58°

5.8 7.2 10.8 11.8 13.4 14.0 14.6 17.0 18.6 19.8 20.3 20.8

2.30 2.30 2.30 2.30 2.11 1.90 1.69 1.02 0.65 0.45 0.36 0.27

58°

8.7 10.1 13.4 14.3 15.9 16.5 17.1 19.4 21.0 22.1 22.6

2.10 2.10 1.82 1.74 1.62 1.53 1.37 0.84 0.54 0.36 0.29

59°

11.0 12.3 15.3 16.2 17.6 18.2 18.7 20.6 22.1 22.9

1.40 1.40 1.35 1.33 1.30 1.28 1.20 0.75 0.48 0.33

60°

7.1 8.5 12.0 13.1 14.1 14.8 16.1 18.8 21.0 21.6 22.1

2.00 2.00 2.00 1.87 1.75 1.70 1.48 0.89 0.47 0.38 0.30

59°

10.7 12.1 15.6 16.6 17.5 18.2 19.4 21.9 24.1 24.6

1.25 1.25 1.18 1.15 1.12 1.10 1.06 0.71 0.37 0.29

60°

13.6 14.9 18.1 19.0 19.9 20.5 21.5 23.6 25.7 26.2

1.00 1.00 1.00 1.00 0.97 0.95 0.91 0.62 0.32 0.26

60°

4.00 4.00 4.00 4.00 3.72 3.41 3.12 2.25 1.70 1.40 0.92 0.82 0.64 0.56 0.41 0.340.28

6RK250-7

■最小直角通路幅

●前2輪ステアリング ●4輪ステアリング ●後2輪ステアリング

R1=8.50m (最小回転半径) R2=8.71m (最外輪端回転半径) R3=9.52m (車体回転半径) R4=9.80m (ブーム先端回転半径) A=4.65m (入口通路幅) B=4.65m (車輪出口通路幅) C=5.46m (車体出口通路幅) D=5.74m (ブーム先端出口通路幅)

R1=4.80m (最小回転半径) R2=5.06m (最外輪端回転半径) R3=5.83m (車体回転半径) R4=6.29m (ブーム先端回転半径) A1=3.10m (車輪入口通路幅) A2=4.30m (車体入口通路幅) B=3.10m (車輪出口通路幅) C=4.30m (車体出口通路幅) D=4.76m (ブーム先端出口通路幅)

R1=8.50m (最小回転半径) R2=8.71m (最外輪端回転半径) R3=9.39m (車体回転半径) R4=7.51m (ブーム先端回転半径) A1=4.34m (車輪入口通路幅) A2=5.02m (車体入口通路幅) C=5.02m (車体出口通路幅)

82.080.075.073.571.070.069.065.062.060.056.055.053.052.050.049.0


82.080.075.073.572.071.069.065.060.055.053.052.051.050.0


82.080.075.073.571.070.069.065.062.060.058.057.0

82.080.075.073.571.070.069.065.062.060.059.058.0

82.080.075.073.572.071.069.065.061.060.059.0




適用型式：RK250-7 RK250-7SPEC-4(仕様は予告なく変更する場合がありますのでご了承ください｡)090203MNF本機のご使用に当たっては取扱説明書を必ずお読みください｡

東京本社／〒141-8626 東京都品川区東五反田2-17-1　　03-5789-2130

北海道　011-788-2386・宮城　0223-24-1482・東京　03-5789-2125 市川　047-328-4311・北陸　076-682-6300・東海　052-603-1205 近畿　06-6414-2103・中国　082-810-3880・九州　092-503-3329

■お問い合わせは･････

■標準装備

ブーム起伏

ブーム伸縮

旋回

ブーム起伏ペダル

補巻操作ペダル

主巻

補巻

ジブ起伏レバー

■標準方式(ISO方式)／レバー､ペダル配置図●

●

レバーは､スプリングリターン式です｡スプリングリ

ターン式とは､レバーから手を離すと自動的に中立位

置に戻る機構のことです｡

主巻と補巻のレバー/操作ペダルの位置の交換も可能

です。

スカイチルトジブ

補助シーブ

25tフック

4.0tボールフック

主巻･補巻ウインチ(フリーフォールなし)

樹脂製アウトリガ敷板

工具箱

集中給脂装置(旋回ベアリング/キャリヤ/ブーム起伏シリンダ)

オイルクーラ

フットペダル(2本)

タコグラフ

標準付属工具

給油工具

ウォッシャ付間欠ワイパ(天窓/前窓)

サンバイザ兼用天井ブラインド

体重調節機能付きサスペンションシート

作業灯

アウトリガコントロール(左側)

グリーンガラス

エアコン(デフロスタ付)

ランチテーブル

灰皿

シガーライタ

フロアマット

ホット&クールボックス

ラジオ(AM/FM)

立入り禁止ロープ

■運転および作業に必要な資格●

●

●

全装備(車検登録質量)で基本通行条件のB条件適合車です。

道路の通行には､道路法による通行許可と､道路運送車両法による保安基準の緩和の許可が必要です。

道路の走行には､大型特殊自動車運転免許証が必要です｡またクレーン作業には､移動式クレーン運転士免許証が必

要です。

●実際の作業は取扱説明書に従ってください。

rk250-7 city crane

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