This method is meant for separating magnetic impurities from non-magnetic ore particles. Example: Pyrolusite, Chromite, and tinstone. In which tinstone is non-magnetic; while impurities ion, manganese and tungstates are magnetic. The powdered ore is dropped on the conveyer belt moving over electromagnetic roller. The magnetic impurities fall from the belt in a heap near the magnet due to attraction. The non-magnetic concentrated ore falls in separate heap away from the magnet, due to the influence of centrifugal force.