QLY25B Harbor Wheel Crane
QLY25B Harbor Wheel Crane
QLY25B Harbor Wheel Crane
QLY25B Harbor Wheel Crane

QLY25B Harbor Wheel Crane is the product that's technology comes from IHI Construction Machinery Ltd.of Japan,and manufactured under the license of IHI.It is a 25 t heavy duty mobile crane with fully hydraulic power drive, lattice boom and continuous 360o full circle swing,specially designed for harbor working conditions.
The crane equipped with a one-man cab mounted on the superstructure, and designed for high performance of crane operation, convenient controls, sturdy and durable.The lattice boom is modified acording to heavy duty operation and has a high stability and travel performance. All of the main components are imported, including engine,pumps,motors,valves,cluth,brakes and components of air circuit and electrical system.
Two variable displacement pumps and three gear pumps are driven by a water cooled six-cylinder diesel engine,providing hydraulic power for crane operation and control system.Hoist,derricking and swing are driven separately by its hydraulic motor through gear box.They can be operated independently or combined operation.The hoist winch is controlled by power fall or free fall to increase productivity.
The driven type of carrier is 4x2 with front axle as steering axle and rear axle as driving.A variable piston motor propels the rear axle through two-stage gear reducer,so the crane has a high gradeability.

The control center is in the crane cab which is located on superstructure.All crane movements are controlled by the pilot valves in the control center. Either single movement or combined movements are available.
QLY25B Harbor Wheel Crane

For safety reason,all the crane operation should be under control of Automatic Moment Limiter which shows boom length,boom angle,working radius and lifting load,and will cut out the crane motions before overload. All the control levers,pedals,switches and pressure gauges are in the control center.
H-type outriggers can be controlled in the crane cab.Either extension beams or jacks can controlled independently.

Rated lifting capaities with outriggers fullly extended (360o)

Rm

Lm
9.0
12.0
15.0
18.0
21.0
24.0
3.6
25.0
4.0
25.0
24.0
23.5
5.0
23.0
22.5
22.0
22.0
6.0
18.5
18.3
18.0
17.5
15.5
15.0
7.0
16.0
15.8
15.5
15.0
13.5
13.2
8.0
14.0
13.8
13.5
13.5
11.2
11.0
9.0
12.5
12.0
11.5
11.5
9.5
9.4
10.0
10.5
10.3
10.0
8.5
8.2
12.0
9.2
9.0
8.3
7.2
6.7
14.0
7.5
6.5
5.5
5.2
16.0
5.1
4.5
4.2
18.0
4.3
4.0
3.5
20.0
3.0
2.9
22.0
2.4
Rated lifting capaities without outriggers(360o)

Rm

Lm
9.0
12.0
15.0
18.0
21.0
24.0
3.6
12.2
4.0
10.4
10.3
10.2
5.0
7.6
7.5
7.4
7.3
6.0
5.9
5.8
5.7
5.6
5.5
7.0
4.8
4.7
4.7
4.6
4.5
4.3
8.0
4.0
3.9
3.9
3.8
3.7
3.5
9.0
3.4
3.3
3.3
3.2
3.1
2.9
10.0
2.9
2.8
2.7
2.6
2.4
12.0
2.3
2.2
2.1
2.0
1.7
14.0
1.7
1.6
1.5
1.0
16.0
1.3
1.2
0.7
Rated lifting capaities on tires over front

Rm

Lm
9.0
12.0
15.0
18.0
3.6
9.0
4.0
8.3
8.1
8.0
5.0
6.8
6.7
6.6
6.5
6.0
5.3
5.2
5.1
5.0
7.0
4.3
4.2
4.2
4.1
8.0
3.6
3.5
3.5
3.4
9.0
3.1
3.0
2.9
2.8
10.0
2.6
1.9
2.4
12.0
2.0
1.5
1.8
14.0
1.4
16.0

1.1
QLY25B Harbor Wheel Crane Main Specifications
 Max.rated capacity
 25000 kg at 3.6 m
 Boom  Lattice type, high strength welding tube structure
 Insert setions 3 or 6 m each to form six boom lengths from 9 to 24 m
 Hoist winch  Driven by fixed displacement axial piston motor through planetary gear box with power fall  and free control
 Line speed  105m/min(unload)
 Wire diameter  ∮20 mm
 Swing system  Single row ball bearing Swing with free/lock switch
 Slewing speed  Max.unloaded 3.8 rpm
 Working speed With outriggers ≤ 2.0 rpm
               Without outriggers ≤ 1.8 rpm
 Derricking system  11s(9 m boom, unload , from 40o to 60o)
 12s(radius 9 m to 3.6 m)
 Wire diameter  16 mm
 Boom support wire  28 mm
 Hydraulic system  Pilot control valve for combined hoisting, derricking and swing movement
 Large hydraulic tank with oil cooling system
 Outriggers  H-type controlled in the crane cab
 Speed  Full extension 58 s   Full retraction 40 s
 Engine  Model 6BTA5.9-C
 Rated output 197 Ps at 2100 rpm
 Max.torque 814 Nm at 1500 rpm
 Manufaturer Cummins UK
 Max.traveling speed  18km/h
 Gradeability  High speed 3o Low speed 14o
 Min.turning radius  9m(at entral line of front outside steering wheel)
 Braking distance  ≤ 5.4 m (18 km/h)
 G.V.W  30,900 kg (traveling position with 9 m boom and hook block Front axle 14,500kg Rear axle  16.400kg)
 Max.ground pressure  With outriggers 240 kN (at outrigger pad)
 Without outriggers 163 kN (at dual-tyre)
 Axle base  3.6m
 Wheel span  2.4m
 Dimensions  6.6x3.2x3.64 m (LxHxW)
 Safety devices
Hydraulic system:    		 
 Presure relieve valves, counter balance valves, check valves,reducing valves, sequence  valves
   Braking system:  Air pressure regulator
   Electric system:  Fuses
   Derricking:  Boom overwinding cutout, boom back stops, safety latch
   Hoist winch:  Hoist overwinding cutout, safety latch
 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 tip height)limit function.Digital liquid crystal displayed:
 Load moment in %    Actual hook load Permissible load
 Boom angle         Actual working radius   Boom length
  Optional equipment  Air condition, auxiliary winch, emergency steering, boom sections for 27 m and 30 m boom
Note: All specifications on our web-site are subject to technical modifications without notice.

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