Efficient Spiral Classifier FG1500 Ore Washing Machine for Mineral Beneficiation Line

The Efficient Spiral Classifier FG1500 separates solid particles according to their settling rate in a water bath, delivering a clean coarse product and a fine overflow for downstream processing. A slow-turning spiral lifts settled sand up the inclined tank while the finest particles are carried out with the overflow water. This makes the machine an ideal partner for a ball mill in a closed grinding circuit, where it returns coarse material for re-grinding and passes finished-size product forward. Its simple, rugged design, generous settling area and easily replaced wear parts make it a dependable, low-maintenance workhorse in ore dressing and washing plants.

• Accurate Particle Separation: A large settling tank and controlled spiral speed divide feed into a coarse underflow and a fine overflow with high efficiency.
• Closed-Circuit Partner: Returning coarse sand to the mill improves grinding efficiency and product fineness in closed-circuit mineral processing lines.
• Wear-Resistant Spiral and Blades: Hardened spiral flights and bolted wear blades resist the abrasion of continuous ore handling and are easily replaced.
• Adjustable Overflow Control: The overflow weir and spiral speed can be adjusted to fine-tune the cut point for different ores and product specifications.
• Robust Tank Construction: A stiff, heavy fabricated tank withstands the constant load of settled solids and the force of the rotating spiral.
• Low Maintenance Design: A simple, well-supported drive train and accessible bearings keep lubrication and servicing quick and inexpensive.

Spiral classifiers are used in ore dressing plants to classify ground ore ahead of flotation, gravity separation and magnetic separation, and to dewater and wash sand and gravel. They also serve in sand washing plants, aggregate yards and coal preparation systems where particle sizing and dewatering are required.

The classifier is shipped with the tank braced and the spiral secured, while the drive unit and wear blades are boxed separately. A full installation and maintenance manual and a spare set of blades are included. Every unit is aligned and tested before dispatch, and we provide a twelve-month warranty with a reliable supply of wear parts.