... iron, tin, chromite, ilmenite, tungsten, zinc, tantalum-niobium, gold, coal , monazite, rutile, zircon and other low-grade ores. ... .Features 1. Reasonable structure and small occupation area2. High recovery, high efficiency, and precise separation3. Non-required power4. Light ... friction the concentration effect surpass plastic surface High performance 5LL gravity Spiral Chute for mining separator