Waste circuit boards contain a wealth of valuable metals such as copper, gold and silver. Traditional recycling methods often lead to environmental pollution and low resource utilization. Air classification for circuit board crushing and recycling adopts an all-physical dry separation process, which has become a reliable solution for the harmless and high-value recycling of electronic waste.
The process first uses multi-stage crushing to shred and pulverize circuit boards into uniform fine powder, so that metals are fully dissociated from resin and fiberglass. Then, in the air classification stage, metals and non-metals are precisely separated by controlled airflow based on their density difference: heavy metal particles settle and are collected, while light non-metal powders are sorted and discharged. No chemicals are used during the whole process, resulting in no waste liquid or waste gas emissions.
Equipped with auxiliary grading screening and electrostatic separation, the system further improves metal purity, with a comprehensive recovery rate of over 95%. The recovered copper powder and precious metals have high purity and can be directly remelted and reused. The production line is also fitted with negative pressure dust removal and pulse purification systems to collect dust centrally, meeting environmental emission standards and ensuring a safer working environment.
With stable flow, high automation and large processing capacity, air classification circuit board crushing and recycling is suitable for various waste circuit boards, copper-clad laminates and electronic scraps. It achieves both economic benefits and environmental protection, making it an ideal choice for standardized and efficient electronic waste recycling.
