Electric Double Girder Bridge Crane

Electric Double Girder Bridge Crane

The electric double girder bridge crane-driving is a general-purpose bridge crane of the trolley. The crane relies on the longitudinal movement along the supporting rail direction of the plant traveling beam, the lateral movement of the trolley and the lifting of the hook to realize the working flow. The common lifting weight is 5-50t. , working level A5-A7. The control modes include ground control, control room control and remote control for users to choose.

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Product Details

The electric double girder bridge crane is a general-purpose bridge crane of the trolley. The crane relies on the longitudinal movement along the supporting rail direction of the plant traveling beam, the lateral movement of the trolley and the lifting of the hook to realize the working flow. The common lifting weight is 5-50t. , working level A5-A7. The control modes include ground control, control room control and remote control for users to choose.

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Class A5 is suitable for general machining and assembly workshops, metal structure workshops, mechanical repair workshops, etc., where the work is not too heavy;

A6, A7 grade is suitable for occasions where work is more frequent or continuous production or continuous transportation. It can also be used as a paving and lifting for metallurgical and foundry workshops; its ambient temperature is -20-40 °C, relative humidity ≤ 85%;


In addition, the A7 class with a weight less than 50t can be used for metallurgical and foundry lifting of molten metal in the case of the requirements of the quality inspection office [2007] No. 375 for the new factory installation of lifting metal cranes. The ambient temperature is -20~60°C. The QD type double girder bridge crane should be marked for outdoor use in order to support the rainproof device.


Advantages of QD electric double girder bridge crane: high working level, good stability and safety, low failure rate, and speed parameters can be changed according to user requirements.

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Technical data of electric double girder bridge crane:

Lifting capacity(t)5-50/1075/20-100/20125/32-250/50300/40-350/75400/80-450/80
Span(m)10.5-31.513.5-31.513-3117, 2221, 20.8
Crane travel A3-A517.7-91.9
A6-A717.7-103
Lifting speed   (m/min)Main hookA3-A53.9-11.30.84-8.4
A6-A74.9-15.60.9-10
Aux hook4.78-15.6
Lifting Height (m)Main hook12,16,20,22,24,25,28,30,32
Aux hook14,16,18,22,26,30,32,33,40
Travesing speed (m/min)
5-44.6
Working classA3, A5, A6, A7 (FEM 1Am-4m)
Power380V 50Hz three-phase

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