Supplied with bath & circulation system. Humphrey Spiral is applied for processing iron, tin, tungsten, tantalum, niobium, gold, coal, monazite, rutile, zircon and other metal, nonmetal minerals with enough specific gravity dispersion of granularity ranged from 0.02 to 0.3mm. The product is made of the cast iron ; The advantages are light, moisture proof, anti-rust, wear proof, anti corrosion and no noise, properly suitable for the different feeding particle sizes and grades. It is the domestic advanced level, the new highly effective equipment. Diameter : 600 mm | Spiral Distance : 360 mm | Max Number Spiral : 1 - 3 Feeding Range : 0.3-0.03 | Feeding Density : %25-55 | Capacity : 0.8-1.2 (t/h)