Hmds wet magnetic drum separator is widely used in coal mine processing. With the development and expansion of heavy media processing technique, drum separator for heavy media processing is widely used in coal-washing plant. The structure of coal mine used drum separator has never had big change, while with the application of new magnetic material, magnet developed from simplex ferrite, mixed magnet to rare earth super strength magnet. Magnetic intensity was raised greatly, improving the recovery percent and lowering media consuming effectively. Features: 1. Important role in coal mine recycling 2. High minmal permanent magnet 3.Keep magnetism for long time 4.Duble stainess steel structure of the pullyer 5.High recycling rate Heavy media content rcycling rate 87-130kg/m3 >99.7% 130-260kg/m3 >99.8% >260kg/m3 >99.9%