Iron remover is a kind of equipment that can produce strong magnetic field, usually used with belt conveyor, vibrating conveyor and other conveying equipment. The ferromagnetic material with weight of 0.1 ~ 2.5kg can be removed from the bulk material, and the iron removal rate can reach 95%. For the grinding machine, crusher, conveyor belt plays a reliable protective role. In addition to iron according to the magnetic source is different, divided into electromagnetic iron remover and permanent magnet iron remover, is a kind of used to remove the block or powder material in the iron removal device. In essence, the electromagnetic iron eliminator is a kind of direct current electromagnet, its magnetic coil in the process of electrization produces a strong magnetic field, will be non-magnetic material in the iron suction.