DETAILS OF TADANO Truck Crane GT-250E:

1、TADANO Truck Crane GT-550E  Adopts self-made special purpose chassis with 6x 4 drive Ergonomic streamline semi-mounted drivers cab with double wing door, which has obtained a national patent, makes it convenient for rear rider to get on and off on the cab.

Adopts Weichai Steyr engine which is specially developed for those cranes that often travel at low speed, this kind of engine cannot only produce large output torque when it starts and increase the traveling speed quickly, but also has excellent starting performance and good grade ability.

2、TADANO Truck Crane GT-550E  Equipped with eight-speed gearbox which changes gear smoothly and simple structure makes maintenance convenient.

Distinctively-designed circular arc sliding block (having obtained a national patent) makes the stress distributed more evenly, load carrying capacity stronger, and adjustment easier.

3、TADANO Truck Crane GT-550E  Local rigidity in boom supporting point is good, which has improved the lifting capacity on boom with same thickness and achieved the goal of greater lifting capacity on lighter boom.

4、TADANO Truck Crane GT-550E  SUPER STRUCTURE SPECIFICATIONS

 

BOOM

4-section full power partially synchronized telescoping boom of hexagonal box construction with 4 sheaves at boom head. The synchronization system consists of 2 telescope cylinders, extension cables and retraction cables. Hydraulic cylinders fitted with holding valves.

Fully retracted length -----10.0 m

Fully extended length ------ 32.2 m

Extension speed ----- 22.2 m in 104s

 

JIB

1-staged boom extension type. Triple offset (5 º/30 º) type.Stored under base boom section. Single sheave at jib head.

Length --- 8.0 m

 

SINGLE TOP

Mounted to main boom head for single line work.

 

ELEVATION

By a double-acting hydraulic cylinder, fitted with holding valve.

Automatic Speed Reduction and Soft Stop function.

Elevation speed -----2º-80ºin /52s

 

HOIST--Main winch

Variable speed type with grooved drum driven by hydraulic axial piston motor through winch speed reducer. Power load lowering and hoisting. Equipped with automatic, brake (Neutral brake) and counterbalance valve. Controlled independently of auxiliary winch.

Single line pull -----30.7kN ( 3130kg )

Single .line speed ----118m/min (at the 4th layer)

Diameter-----16mm   '

Length-----175 m

 

HOIST-Auxiliary winch

Variable speed type with grooved drum driven by hydraulic axial piston motor through winch speed reducer. Power load lowering and hoisting. Equipped with automatic brake and counterbalance valve. Controlled independently of main winch.

Single line pull -----34.3 kN ( 3,500kg )

Single line speed -----102 m/min (at the 2nd layer)

Diameter. -----16 mm

Length-----90 m

 

SWING

Hydraulic axial piston motor driven through planetary speed reducer. Continuous 360~ full circle swing on ball bearing slew ring. Automatic Speed reduction and soft stop function. Equipped with manually locked/released swing brake.

Swing speed -----2.5r /min

 

HYDRAULIC SYSTEM

Pumps-----Quadruple gear pumps driven by carrier engine through P.T.O.

Control valves-----Multiple valves actuated by pilot pressure with integral pressure relief valves.

Circuit------Equipped with air cooled type oil cooler. Oil pressure appears on AML display for main circuit.

Oil tank capacity-----approx. 467liters

Filters------Return line filter

 

CAB AND CONTROLS

By 4 control levers for swing, boom hoist, main winch, boom telescoping or auxiliary winch with 2 control pedals for boom hoist, boom telescoping based on ISO standard layout. Control lever stands can change neutral positions and tilt for easy access to cab.

Steel construction with sliding door access and tinted safety glass windows opening at side, and operator's 5 way adjustable seat with headrest and armrest.

 

OUTRIGGER

4-hydraulically operated H-type outriggers. Each outrigger controlled simultaneously or independently from either side of carrier. Equipped with sight level gauge. Floats mounted integrally with the jacks retract to within vehicle width. All cylinders fitted with pilot check valves.

Crane operation with different extended length of each outrigger.

Equipped with extension width detector for each outrigger.

Extended width

Fully-----6,1 mm

Middle-----4, 0 mm

Float size (Diameter) -----400 mm

 

TADANO Automatic Moment Limiter

Main unit in crane cab gives audible and visual warning of approach to overload. Automatically cuts out crane motions before overload. With working range (load radius and / or boom angle and / or tip height and / or swing range) limit function.

Nine functions are constantly displayed.

Either moment as percentage or main hydraulic pressure

Either boom angle or moment %

Either boom length or potential hook height

Either actual load radius or swing angle

Actual hook load

Permissible load

Either jib offset angle or number of parts of line of robe

Boom position indicator

Outrigger position indicator

 

FRONT JACK

Front outrigger mounted to the front frame of carrier to permit 360ºlifting capabilities.

Hydraulic cylinder fitted with pilot check valve. Equipped with front jack extension detector.

Float size (Diameter) -----260 mm

 

COUNTERWEIGHT

Integral with swing frame

     Mass-----2.860 kg

 

DEMENSION

Overall length-----11,950mm

Overall width-----2,490mm

Overall height-----3,495mm