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Double Girder Overhead Crane
Double Girder Overhead Crane
Double Girder Overhead Crane
Double Girder Overhead Crane
Double Girder Overhead Crane
Double Girder Overhead Crane
Double Girder Overhead Crane
Double Girder Overhead Crane
Double Girder Overhead Crane
Double Girder Overhead Crane

QD-Double Girder Overhead Crane

DQ-Double Girder overhead Crane  is a kind of heavy duty crane, it could be classified into several working duties: A5, A6, A7, according to the working frequency and pure working time.
Lifting Capacity:
5~500t
Span Length:
10.5~31.5m
Lifting Height:
6~30m
Working Class:
A5, A6, A7, A8
Ambient Temperature:
-20~40℃
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Product Description
Product 
QD double girder overhead crane is composed of bridge, travelling mechanism, trolley, electric equipment. Main girder adopts box welded structure, crane travelling mechanism adopts separate drive, and lifting mechanism is equipped winch. All mechanism are controlled in driver's cab.
QD model double girder overhead crane is applied in open warehouse or rail sideways to conduct common loading unloading and material handling works. It is a heavy duty type overhead crane that satisfy frequently using.
Features
1
Heavy Duty and High Efficient;
2
Suitable for any environment ( High Temperature, Explosion Proof and so on);
3
Long Life Span: 30-50years; 
4
Easy for Installation and maintenance;
5
Reasonable structure and strong rigidity;
6
The speed can be frequency inverter speed control;
7
Control method is cabin control or remote control;
8
Depending on lifting cargo, crane can be equipped with hanging beam magnet or magnet chuck or Grab or C hook;
9
Crane is equipped with all moving limit switch, loading limit and other standard safety devices, to promise crane work safe.
01
Main Girder
Finework cranes
With strong box type and standard camber, there have reinforcement plate inside the main girder. Material of high quality carbon steel Q235B and Q345B.
02
End carriage
Finework cranes
Use rectangular tube manufacturing module, butter motor drive, with roller bearings and lubrication.
 
03
Trolley
Finework cranes
It is with heavy capacity and high working class. It is developed specifically for lifting that requires accurate and smooth movement.
04
Wheel
Finework cranes
Equipped with high quality forged or casting wheel, which will have be heat treated to ensure wheels’ performance.
 
05
Hook block
Finework cranes
The hook block is composed of sheaves, hooks and latch, 360 degree rotating. The hook is forged and single hook and double hook is available.
06
Operation ways 
Finework cranes
Pendant control, remote control and/or cabin control.
 
07
Cabin
Finework cranes
The cabin has open model and closed model. It can be installed on left or right side according to the practical situation. And the direction of entering has two ways: sideway entrance and end surface entrance to satisfy the users' choice in different conditions.
Technical Parameters

Model QD type
Lifting capacity t 5 10 16/3.2 20/5 32/5 50/10 75/20 100/20
Max. lifting height Main lifting m 16 16 16 12 16 12 20 22
Aux. lifting m     18 14 18 16 22 22
Span m 10.5-31.5 13.5-31.5 13-31
Lifting speed Main lifting A5 m/min 11.3 8.5 7.9 7.2 7.5 5.9 6.1 3.9
A6 15.6 10.4 10.7 9.8 9.5 7.8 6.1 4.9
Aux. lifting     14.6 15.5 15.5 10.4 7.2 7.2
Trolley traveling speed m/min 37.2 43.8 44.6 44.6 42.4 38.5 38.4 33.86
Crane traveling speed A5 m/min 89.8(91.8) 89.8(91.9, 84.7) 84.7(87.6) 84.7(87.6) 87.6(74.2, 74.6) 74.6 65 65.7
A6 92.7(93.7) 92.7(93.7, 86.5) 76(89) 76(89) 89(75.3) 75(76.6) 66.2 65.7
Power 3P 380V 50Hz or others
Configuration
Safety protection devices:
Overload limiter, limit switch, interlocking protection devices, buffer, track sweep plate, bus bar protection board, anti-collision device, main disconnecting switch, emergency stop system and motor overload protection.
Inquiry
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