A dry magnetic separator is a specialized device designed to separate magnetic materials from non-magnetic ones in dry, free-flowing conditions. Unlike wet magnetic separators that process slurries, dry models rely on air or gravity to transport granular, powdery, or lump materials through a magnetic field, making them ideal for materials that cannot be wetted or where water usage is impractical. Their design—often featuring rotating magnetic drums, rolls, or overband magnets—enables efficient separation by exploiting differences in magnetic susceptibility, with applications spanning mining, recycling, and industrial processing.
The dry magnetic separator consists of one or more magnetic drums (or rollers) that generate a strong magnetic field. As dry ore or material is fed onto the surface of the drum or passed through a magnetic field zone:
● Magnetic particles are attracted to the drum surface due to the magnetic force and are carried away from the non-magnetic fraction.
● Non-magnetic or weakly magnetic particles are unaffected by the magnetic field and fall freely away from the drum due to gravity or air flow.
