The dry drum separator consists of a stationary magnetic yoke with a number of permanent magnets placed insidea rotating drum of nonmagnetic material. The magnets have alternating polarity and are normally of strontium-ferrite. The revolving drum is made in two versions: 1) for low speed, stainless steel with a replaceable wear cover of rubber, polyurethane or stainless steel and, 2) for high speed, reinforced plastic with rubber or polyurethane wear protection. The magnetic drum assembly is contained in a dust proof housing with an opening at the bottom