In the emerging waste disposal industry, they are also used to recover steel scrap from waste materials. Magnetic iron removers have been adopted by large steel enterprises, metal mines, power plants, light industry, refractory material plants and other sectors and play a vital role. They are suitable for tramp iron removal on conveyor material handling systems in various industries and enable continuous iron attraction and discharge. According to magnetic source, they fall into two main categories: electromagnetic iron removers and permanent magnetic iron removers. Based on iron discharging mode, they are classified into automatic iron removal type and manual iron removal type.