Sorting size 0.3-0.02mm thin materials of iron ore,ilmenite,chromite,pyrite,zircon,rutile,monazite,P B ore,etc. Spiral chute application: This machine is applicable for selecting materials with size 0.3--0.02mm, such as iron ore, ilmenite, chromite, pyrite, azorite, rutile, monazite, phosphorite, oxide ore, tin ore, tantalum ore, niobium ore and other nonferrous metals with distinct specific ...