Permanent grate magnets and housings from Grainger help simplify removal of ferrous contamination in hoppers, chutes, floor openings and other areas where free flowing granular or powdered materials are present. Ceramic magnets help remove medium to large ferrous tramp metal such as nuts, bolts, nails and staples. Rare earth magnets can provide up to 25 times the magnetic force of ceramic magnets, making them capable of removing fine ferrous particles. Choose from rectangular grate, round grate, and tube magnets in a wide range of sizes. Shop Grainger today for high-quality grate magnets and housings.