weight

Axles

1

2

Total weight

lb

41240

43796

85036

Hook block

No.of sheaves

Remarks

55USt

6

Single hook

Working speeds

mph

23.5R 29

23

55%

Drive

Working speed

0-426.6   ft/min, no load, 4th layer,

0-426.6   ft/min, no load, 4th layer

0-2     r/min

Approx. 70s for boom elevation from -1.5° to 80°

Approx. 140s for boom extension from 10.3m to 38.2m

Technical specifications

Frame

Turntable and frame are made of fine grained high strength steel, with anti-torsion large cross-section frame structure, has heavy loadbearing capacity.

Boom

Ibasic boom and 4-telescoping sections, quadrilateral cross section welding structure. Double-cylinder plus ropes telescoping mechanism is for synchronous plus sequential telescoping. 6 pulleys on boom head are standard. Boom length:33.8ft ~ 1253ft.

Outriggers

4 outriggers, H-shaped arrangement, which are controlled by electrical and hydraulic and located at both sides of chassis frame. Front and rear towing brackets are available.

Operator's cab

Integrated design, appearance is simple and artistic, equipped with all-weather and large arc glass, which has a wide vision, as well as spacious and comfortable due to ergonomic inner design.

Engine

 QSB6.7, in line six-cylinder water-cooled compression ignition diesel engine, manufactured by Cummins, US, offload U.S. EPA Tier 3/EU Stage IIIA emission standards,rated power 200bhp/21 OOrpm, max. torque 5461b.ft / 1500rpm, or off-road U.S. EPA Tier 4rEU Stage IV emission standards,rated power 200bhp/2200rpm, max. torque 6861b.ft / 1500rpm.

Fuel tank capacity : Approx. 79.2gal

Safetydevices

Hydraulic balance valve, Hydraulic relief valve, Hydraulic double-way valve, LMI., Lowering limiter avoids wire rope overreleasing. Anti-two block at boom head avoids wire rope over-winding.

Hydraulic system

 The constant variable displacement pump is connected to the transmission through PTO fbr controlling the movements of crane. Oil tank capacity: Approx.190gal.

Counterweight

Total weight is 13227.6b, fixed counterweight

Operating mode

Electric proportional controlled operation system is equipped with two electric proportional control the main movements of crane.

Electrical system

DC 24 volts is in series with two 12-voltbattery packs.

Gearbox

6WG260, automatic transmission imported from ZF Germany, with 6 forward and 3 reverse gears available.

Hook

90t hook block, seven sheaves, double hook.

Axles

Exclusive axles imported from KESSLER Germany, with both front axle and rear axle for driving and steering.

Additional equipment

Suspensions

Front axle is connected with frame rigidly, swing rigidly lockable hydraulic suspension is used for rear axle. Road shock is buffered and travel smoothness is improved when driving on roads, the rear suspension cylinder may be locked to rigid state so as to meet the requirement fbr travel with a load suspended.

Auxiliary which system

Driven by hydraulic motor through planetary gear reducer and with built-in constant closed brake, equipped with anti-winding wire rope.

Tires

4 tires, each axle is equipped with single tire, large bearing capacity. Tire specifications:23.5 R 25.

Jib

2-section,lattice and box welding structure, with 0° , 20° and 40° jib offset angles avai- lable.Jib length:29.5fr ~ 55.8ft.

Steering

Electro-proportional hydraulic multi-mode steering: front axle independent steering, small turning radius steering, crab walk steering and rear axle independent steering are available.

Air conditioner

Equipped in the cab, for improving comfortable performance.

Brakes

Service brake: double-circuit hydraulic disc brake, acting on all wheels. Automatically braking function works when the pressure in braking system is too low.

Parking brake: spring-loaded brake, acting on front axles, hydraulic-released independent disc brake.

Hook

28USt hook block, three sheaves, single hook. 4.4USt hook block, the max. parts of line are 1, single hook.

Main winch system

Driven by hydraulic motor through planetarygear reducer and with built-in constant closed brake, equipped with anti-winding wire rope, having features of high speed with light load and low speed with heavy load.

Differential lock

With these differential locks fitted, pass ability may be improved in case of slipping when driving on difficult roads or single-side tires slipping due to partly suspended drive wheels.

Slewing system

 Single-row four-point ball contact slewing ring, driven by hydraulic motor through planetary gear reducer and with built-in constant closed brake, for 360 ° continuous rotation.

Product parts list is as mentioned above, please refer to the product quotation for specific parts.

XCMG——RT55U