This applies to sorting size 0.3-0.2mm thin materials of iron ore.ilmenite,chromite,pyrite,monazite,PB ore,tungsten ore,tin mine,tantalum and niobium,as well as other non-ferrous metals,precious metals and non-metallic mineral with the proportion differences.the process of sorting equipment is  stable,eady to contral ,to allow changes in the thickness of ore concentration ,concentration os high,high recovery ,small footptint,less water consumption,simple structure,no driving force,big capacity,simple to install ,convenient operation,small investment and so on advantages.