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XCMG  55 ton hydraulic mobile truck crane QY55KC
QY55KC Truck crane is widely used for the lifting operations in general engineering projects, such as construction sites, urban renewal, communication and transportation, ports, bridges, oilfields and mines, and complex working environments.

1.  Superb lifting performance
5-section boom of 44.5 m with U-type profile, best-in-class boom length. The max. parts of line for the main hook block is 12. The crane has leading capacities with full counterweight compared with the competitive cranes. The telescoping mode is updated to random telescoping from sequential telescoping, resulting in more efficient change of boom length, and better capacity of medium-long boom.

2. Constant displacement pump valve-controlled load sensitive hydraulic system
Oil supply may be switched from dual-pump to single pump for precise operation. The min. stable slewing speed of 0.1°/s and min. stable lifting speed (at drum) of 2.5 m/min contribute to precise and safe lifting operations.

3. Power transmission system
Sinotruk engine with rated power of 276kw, and max torque of 1560 N.m.
Max. travel speed is 90 km/h, and max. gradeability is 45%.

4. Optimal power transmission system
High power performance and low fuel consumption are perfectly integrated. The max. grade ability is 45%, max. travel speed is 90 km/h, and fuel  consumption per 100 km is only 40L.


Category
Item
Unit
Parameter
Dimensions
Dimensions (length×width×height)
mm
13900×2800×3675
Wheel base
mm
1470+4300+1350
Track(Front/ Rear )
mm
2314/2314/2063/2063
Front/ Rear overhang
mm
2380/2150
Weight
Front/ Rear extension
mm
2250/0
Total vehicle mass in travel configuration
kg
42700
Axle load
1st axle
kg
8585
2nd axle
kg
8585
3rd axle
kg
12765
4th axle
kg
12765
Power
Engine model
-
D10.38-50
Engine rated power/rpm
kW/(r/min)
276/2000
Max. net power/rpm
kW/(r/min)
274/2000
Max. output torque/rpm
N.m/(r/min)
1560/1200-1500
Travel
Max. travel speed
km/h
≥90
Min. stable travel speed
km/h
2.5~3
Min. turning diameter
m
≤24
Min. turning diameter at boom tip
m
≤29
Min. ground clearance
mm
303.5
Approach angle
°
19
Departure angle
°
14
Braking distance (at 30 km/h )
m
≤10
Max. grade ability
%
≥45
Fuel consumption per 100 km
L
40
Noise
Exterior noise level
dB(A)
≤88
Noise level at seated position
dB(A)
≤90
Main performance
Max. total rated lifting capacity
t
55
Min. rated working radius
m
3
Turning radius at turntable tail
Counterweight
mm
3625
Auxiliary winch
mm
3780
Max. load moment
Base boom
kN.m
2033
Fully-extended boom
kN.m
1225
Fully-extended boom + Jib
kN.m
624
Outrigger span
Longitudinal
m
6.1
Lateral
m
7.1
Hoist height
Base boom
m
11.9
Fully-extended boom
m
44.5
Fully-extended boom + Jib
m
60.3
Boom length
Base boom
m
11.6
Fully-extended boom
m
44.5
Fully-extended boom + Jib
m
60.5
Jib offset angle
°
0, 15, 30
Working speed
Boom raising time
s
≤50
Boom fully extended time
s
≤100
Max. slewing speed
r/min
≥1.6


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