Electromagnetic bridge crane contains accessible electromagnetic chuck, especially suitable using in metallurgy factory fixed across-chain loading, unloading and lifting black metal products and materials frequently in indoor or outdoor(for example ingot, steel, cast iron piece). In storages, mechanics factories, it can also be used to moving goods such as Steel material, pieces of iron, scrap, scrap steel, iron and so on. The working class of electromagnetic bridge crane is A6, the rated weight includes electromagnetic chuck weight. This machine is made up of box type crane span structure, crane running structure, trolley, electric equipments, and electromagnetic chuck, all structures are operated in control room, while using in outdoor environment it has anti-rain device. The basic structure of electromagnetic bridge crane is the same as hook bridge crane, the difference is there hanging a direct current lifting electromagnet (another name is electromagnetic chuck) for lifting black metal products and materials. Usually changing the alternating current power into direct current power by electric generator set on crane span structure walking stage or the SCR DC box installed in driver's room, then sending direct current power to the lifting electromagnet by flexible cable in special cable reel set on trolley shelf.