Company cases about Rare Earth Permanent Magnetic Roller Separator Enhances Purification Efficiency for a Tungsten Ore Processing Plant

Rare Earth Permanent Magnetic Roller Separator Enhances Purification Efficiency for a Tungsten Ore Processing Plant

2026-01-27

A tungsten ore processing plant faced persistent challenges in its ore purification stage: its conventional magnetic separation equipment could only capture coarse ferromagnetic impurities, leaving fine iron particles in the concentrate. This resulted in a final product iron content of 1.2%, failing to meet the 0.3% purity standard required by downstream alloy manufacturers. The plant also incurred high costs from frequent manual cleaning and equipment downtime, with an annual maintenance expense of over $150,000.

To address these issues, the plant adopted TMY Machinery’s Rare Earth Permanent Magnetic Roller Separator. The system integrates a 6000 Gauss magnetic drum for pre-separation and a 16000 Gauss high-strength magnetic roller for fine purification, capturing impurities as small as 0.1μm with an overall removal efficiency of over 99.5%. The automated vibration feeder and continuous discharge design eliminate manual intervention, ensuring 24/7 uninterrupted operation.

After implementation, the iron content in tungsten concentrate dropped to 0.28%, fully meeting customer quality requirements. The plant’s production line availability rate increased from 78% to 96%, reducing annual maintenance costs by $110,000 and increasing annual output by 12%. This upgrade enabled the plant to secure long-term supply contracts with high-end alloy producers, significantly boosting its market competitiveness.

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