Electric Hoist performance standards 1, the electric hoist lifting weight, both suspended objects weight (tons) and is divided into the rated lifting weight, maximum weight, total weight, lifting weight effectively. 2, lifting height, electric hoist orbit underside to fetch device on-line vertical interval, usually refers to hook the gap between the central to hoist. 3, the lifting speed, refers to the running speed of electric hoist under rated load. 4, sling, refers to the line of the electric hoist lifting with general wire rope and chain. 5, motor type, refers to the type used by electric hoist motor, divided into general motor and explosion-proof motor.