... was designed in 1999. It is adapted to concentrate mineral ores, such as iron,tin,gold,ilmenite, chromite,pyrite,tungsten,niobium ... ,coal,monazite,rutile,zircon,and other metalic or non-metallic ores. Simple structure ,Light weight,Convenient move,easy running and maintenance ... and low capital cost. Gravity separator refinery Spiral chute for chrome