Used to transport long pieces of ferrous metals such as slabs and rods. The rotation is achieved in two forms. One way is the rotation of the hanging beam, that is, the hanging beam has a double-layer structure. The upper hanging beam is wound by a pulley group and steel cable. The lower hanging beam is equipped with several electromagnetic suction cups or clamps, which can rotate at a certain angle along with drive mechanism. Another form is the rotating trolley, that is, the trolley has a two-tier design. The upper trolley is equipped with a lifting mechanism, and the lower one is a running trolley with a ring track laid on it. The upper trolley can rotate. along the ring road.