It is used for handling ferrous metals such as long slabs and bars. The rotation is realized in two ways, one is the rotation of the hanging beam, that is, the hanging beam has a double-layer structure, the upper hanging beam is wound with a wire rope through a pulley block, and the lower hanging beam is equipped with multiple electromagnetic suckers or clamps, which can rotate at a certain angle with the driving mechanism . Another form is trolley rotation, that is, the trolley has a double-layer structure, the upper trolley is equipped with a lifting mechanism, the lower trolley is a running trolley, and a circular track is laid on it, and the upper trolley can rotate along the circular track.