Overhead Crane With Electric Hoist Product Structures 1, Box girder, trolley traveling mechanism, crab and electrical equipment 2, Fixed type electric hoist lifting mechanism installed on the trolley frame 3, Car run by LD drive, LD drive and the QD drive two Product Advantages 1, Simple and light structure, small https://www.venusmach.com/overhead-crane-with-electric-hoist-product/