U double girder gantry crane is recommended by WTO and match technical standard GB/T14406-93.
Characteristics: lifting capacity 10-50t/10t, span 5-55m, lifting height 6-35m, working class A5 –A6. Specifications: lowest limiting size between the top of crab and the track of trolley increasing on 20%-30% workshop efficiency. It has hard gear reducer, the import rope, three in one drive. Overloaded with sound and light alarm, anti-hoisting hook protector from the stop, the circuit self protection, over-current protection of missing items, stop limit and so smart all-around self-protection.