The magnetic separator is used to remove ferrous metals from mixed material streams after crushing, shredding or conveying. It is usually installed above a belt conveyor or at the discharge end of a conveyor. When mixed materials pass through the magnetic separation area, iron and steel pieces are attracted by the magnetic field and separated from the main material flow, while non-magnetic materials continue to move forward.
The core part of the magnetic separator can be a magnetic drum or an overband magnetic system. During operation, crushed scrap metal, aluminum scrap, appliance shell fragments, paint bucket pieces, wood chips with nails and other mixed materials are evenly conveyed into the separation area. Ferrous materials such as iron pieces, steel fragments, nails, screws and other magnetic impurities are attracted to the belt or drum surface. As the belt or drum rotates, these ferrous materials are carried to a separate discharge position and released into the ferrous collection area.
Non-magnetic materials such as aluminum, copper, plastic, rubber, wood and other non-ferrous or non-metallic materials are not attracted by the magnetic field. They continue along the original conveying direction and are discharged separately. In a recycling line, the magnetic separator can work with a metal crusher, twin shaft shredder, belt conveyor, vibrating feeder, eddy current separator and dust collector for continuous material separation.
The separation effect depends on material size, feeding thickness, belt speed, magnetic strength, material moisture and the distance between the material and the magnetic system. For better separation, the material should be spread evenly on the conveyor before entering the magnetic separation area.