overbåndsmagneter

Overbåndsmagneter, also known as overhead magnetic separators or suspended magnets, are a type of magnetic separator used to remove ferrous metal contaminants from materials conveyed on belts. They are typically mounted above a conveyor belt, either parallel to the belt's direction of travel or perpendicular to it. The magnetic field generated by the overband magnet attracts and lifts any ferrous particles present in the material stream, holding them against the magnet until they are discharged in a separate location.

These magnets are crucial in various industries, including mining, quarrying, recycling, food processing, and agriculture, to protect downstream equipment from damage caused by tramp metal, to improve product purity, and to recover valuable ferrous materials. They are particularly effective in separating larger pieces of iron and steel from non-ferrous materials.

Overbåndsmagneter can be either permanent magnets, which utilize strong permanent magnetic materials like neodymium or ferrite, or electromagnets, which use a coil of wire through which an electric current flows to generate a magnetic field. The choice between permanent and electromagnetic overband magnets depends on factors such as the size and type of contaminants, the depth of the material burden on the conveyor, and the required magnetic strength. Regular cleaning or automated belt cleaning systems are often employed to remove the captured metal from the magnet.