Spiral chute is gravity selection equipment,used after the grinding stage. Spiral chute 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 ...