Under rotation to hang with the rotating beam bridge crane, and scalable electromagnetic beam, is suitable for steel mills, shipyards, ports, fixed across the yard and warehouse and other indoor or outdoor, loading and unloading and handling steel plate, steel coil, or other materials. It is especially suitable for lifting different specifications and requiring horizontal rotation. According to the specification and weight of the hoisting material, the electric magnetic force of electromagnet can be adjusted and the electromagnet magnetic force is adjusted. According to customer requirements, it can be provided: speed regulation (1:10 or more) of various institutions, overload and alarm, remote control PLC and fault detection, display and printing system. The hanging beam is a cross structure, reliable and safe, with certain anti-rolling function. Under the beam can carry electromagnetic chuck, clamp and other special equipment.