permanent magnetic drum separator (magnetic pulley) is also called dry bulk magnetic separator. Its internal complex magnetic system is made up of high-performance hard magnetic materials. permanent magnetic drum has a strong magnetic field intensity, a simple structure and no energy consumption. It is easy to use, without maintenance, and there is no demagnetization after year round use. permanent magnetic drum is widely used together belt conveyors to replace the drive pulley or driven pulley, and it is especially suitable for the continuous automatic iron separation from steel slag, ore slag, water slag, etc.it is widely used for iron election in cement, magnetic separation, mining, steel, chemicals, refractories, waste disposal and other industries.