Nucleon double girder overhead crane electric hoist trolley is widely used especially when the electric hoist as a light duty lifting mechanism can't meet the lifting demands, It is composed of electric hoist, wheel and trolley frame. through the rails installed on the crane beams, the trolley can realize traveling from one side to another.

The limiting size is the lowest between the top of crab and the track of trolley, that is to say, it reduces 20%-30% compared with traditional products, which can reduce the capital of workshop 20% efficiently.
Choosing principle: according to the working system and using filed. which system you will choose. filed should go first. Calculation the times per hour of starting and pulling-on recycle. we should mark the practical time per day and continuous work time. Also we should take it consideration about the limiting size. ambient temperature. speed. time. intermission or continuous, the times of starting and pulling-on recycle etc. The speed of ground control should adopts A3 slow-speed. the above mentioned is just for reference. Reasonable selection, design and match can increase the working efficiency greatly.