Printed Circuit Board Recycling Machine for Metal Recovery
The waste PCB recycling production line is a physical recycling system that integrates crushing, grinding, sorting, and dust removal. Through processes such as two-stage crushing, air classification and electrostatic separation, it effectively separates metals such as copper and aluminium from resin fibres in waste PCBs, enabling resource recovery whilst reducing dust emissions and improving recycling efficiency. It is suitable for enterprises engaged in the resource recovery of electronic waste.
High-efficiency physical recycling process
PCB circuit boards are composed of a variety of materials, including copper, aluminium, precious metals and resin fibres. Traditional processing methods struggle to balance recovery rates with environmental requirements, whereas physical recycling technology enables material separation without the use of chemical agents.
The entire production line primarily comprises a twin-shaft shredder, a hammer mill, a fine pulveriser, an air classification system, an electrostatic separator, a pulse dust collection system and a PLC automatic control system. Waste PCBs first undergo coarse crushing in a twin-shaft shredder, then proceed to a hammer mill for secondary crushing, before being processed by fine grinding equipment into a uniform, blended powder. Following air classification, the majority of lightweight resin fibres are separated; finally, electrostatic separation equipment is utilised to precisely separate metal powders from non-metallic powders based on differences in electrical conductivity, thereby enhancing the quality of metal recovery.
Automated, High-Efficiency and Environmentally Friendly
To meet the demands of electronic waste recycling operations of varying scales, this PCB recycling production line offers multiple processing capacity configurations, including 100–150 kg/h, 200–300 kg/h, 400–500 kg/h and 800–1,000 kg/h. The corresponding installed power for the entire line is approximately 110 kW, 193 kW, 242 kW and 458 kW, respectively, allowing selection based on raw material type and production capacity requirements.
The equipment utilises centralised PLC control, enabling the coordinated operation of processes such as conveying, crushing and sorting, thereby reducing manual intervention and enhancing production stability. Furthermore, a high-efficiency pulse dust collector is installed in the air classification stage, combined with an exhaust gas purification system, to centrally collect and treat dust generated during production, effectively improving the working environment and reducing the risk of dust leakage. The modular structural design also facilitates equipment maintenance, making the replacement of wear parts and routine inspections more efficient.
Pre-delivery Testing to Ensure Compliance with Requirements
As PCB recycling equipment must handle circuit boards with significant variations in copper content, thickness, and material composition, it is particularly important to conduct testing with actual materials prior to delivery.
Prior to delivery, SUNY GROUP typically conducts a full-line trial run using samples of waste circuit boards provided by the customer. This simulates the actual production environment and involves comprehensive testing of particle size after crushing, sorting efficiency, equipment operational stability, and the overall production capacity of the line. Equipment parameters are then adjusted based on the test results to ensure the production line meets the customer’s actual processing requirements. This testing approach not only reduces the commissioning time after the equipment is installed but also helps to improve the stability of subsequent continuous production.
With the continuous growth of electronic waste, the adoption of automated, environmentally friendly PCB recycling production lines has become a key strategy for improving resource utilisation and reducing processing costs. If you are interested in this equipment or have any requirements, please feel free to contact us at any time for further details!
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