Company cases about Permanent Magnetic Drum & Eddy Current Separator Realize High-efficiency Metal Sorting for Waste Power Batteries

Permanent Magnetic Drum & Eddy Current Separator Realize High-efficiency Metal Sorting for Waste Power Batteries

2026-06-13

Redwood Materials, a leading power battery recycling enterprise in the United States, launched an upgraded recycling production line at its Nevada base in June 2026, with an annual processing capacity of 50,000 tons of waste power batteries. The core industry pain point is the mixed accumulation of steel shells, copper foil and aluminum foil, which cannot be efficiently sorted by traditional processes.

The production line adopts a combined dry sorting system. The high-performance permanent magnetic drum separator firstly separates all ferromagnetic accessories such as steel shells and screws with a recovery rate of 99.8%. The high-frequency eddy current separator further sorts non-ferrous metals including copper and aluminum from crushed materials, achieving a metal sorting purity of 99.5%.

The whole process requires no water and produces no wastewater, reducing energy consumption by 35% compared with traditional wet separation technology. The overall metal recovery rate of the production line exceeds 95%. It fully complies with the magnetic separation mandatory standards of the U.S. Infrastructure Investment Act for new energy battery recycling, becoming a benchmark for North American battery resource recycling.

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