Spiral Chute Features 1 Reasonable structure simple installation small floor space simple and easy operation 2 Stable separation clear classification high processing capacity high efficiency 3 High dressing and concentration ratio high recovery and reliable operation 4 It Spiral Classifier Processing Ability 770 2800TPH Screw Diameter. View All. LL Spiral Chute. Spiral chute is a type of new gravity separation equipment, which is applicable to separate metallic minerals granularity between 4 0.02, such as iron , ilmenite, chromite, pyrite, tungsten ore, tin ore, tantalum-niobium ore, gravel mine, zirconite and rutile as well as other nonferrous metals, rare metals and nonmetallic minerals with adequate gravity difference. The 5ll series spiral chute machines up for sale are from the leading sellers and trusted manufacturers who assure outstanding quality and steady performance for a long time. These motor-operated 5ll series spiral chute machines are available in various distinct models and their capacities may vary for each.