SWMS LM Series, Low-Grade Mineral Spiral
The LM spiral is usually supplied in duplex configuration (LM5/2). The spiral helix is constructed from GRP with a polyurethane wear surface. The latest reverse lamination technology is used in the manufacturing process. Each LM5 spiral trough has 5 turns beginning at the feed box and ending at the product box. A heavy duty cast polyurethane feed box is fitted to the trough by means of a bolted flange. The box is back fed with a tangential outlet to ensure maximum use of the spiral separating surface. A heavy duty cast polyurethane product boot is attached to the spiral trough by means of a bolted flange. Two adjustable cutters are located in the boot to divide the stream into Concentrate (heavies), Middlings and Tailing (lights) fractions.
The LM spiral is primarily designed to treat pulp streams with a heavy mineral content in the range up to 50% by weight. It comprises a backfed feed box, single section of helix and a product boot. All splitters are located in the product boot to divide the stream into concentrate, middlings and tailings. This multi-purpose spiral is extremely tolerant of changing feed conditions so few operational adjustments are necessary making it an ideal unit for rougher, scavenger and retreat duties.
Applications: Gold, Tin, Tungsten, Mineral Sands, Chromite, Glass Sand, Platinum, Metallics and Slag, Sulphides, Soil Cleaning.