Waste PCB Recycling Solution to Produce WPC Products

Yongte Full Solution for Waste PCB Recycling to Produce WPC decking/fence/pergola Profiles (Equipment + Technical Support)

1. Project Overview

This comprehensive solution independently developed and provided by Yongte focuses on the high-value green recycling of waste printed circuit boards (WPCBs). It innovatively converts non-metallic waste residues generated from waste PCB recycling into high-quality wood-plastic composite (WPC) products, realizing zero-waste disposal and resource cyclic utilization of electronic waste.Traditional waste PCB recycling mostly focuses on precious metal extraction, leaving a large amount of non-metallic fractions (including epoxy resin, glass fiber, and plastic fillers) to be landfilled or incinerated, which causes serious soil and air pollution and massive resource waste. Yongte’s integrated solution breaks through this industry bottleneck. Through professional physical separation, modification, compounding and extrusion molding technologies, the waste PCB non-metallic powder is fully reused as the core filling material for WPC production, replacing traditional wood flour and partial plastic raw materials.Yongte provides clients with one-stop turnkey services, covering full-set professional recycling and production equipment, standardized production processes, complete technical guidance, formula debugging, on-site commissioning and after-sales technical training, enabling clients to quickly build a standardized, environmentally friendly and profitable waste PCB recycling and WPC profile production line.

2. Core Recycling & Production Process Principle

The detailed technological flow is as follows:

2.1 Waste PCB Pre-treatment: Remove residual electronic components, solder and impurities from waste circuit boards, and conduct preliminary sorting to screen out qualified PCB base materials.

2.2 Mechanical Crushing & Grinding: Adopt special low-temperature crushing equipment to crush PCBs into uniform fine particles, and further grind them into 60–120 mesh ultra-fine powder to ensure full separation of metal and non-metal components.

2.3 Precision Physical Separation: Utilize gravity sorting, electrostatic separation and air separation technologies to completely extract copper, gold, silver and other precious metals, with a metal recovery rate of over 99%. The remaining pure non-metallic powder is collected centrally for subsequent WPC production.

2.4 Material Modification & Compounding: Perform surface activation modification on PCB non-metallic powder to solve the compatibility problem between inorganic glass fiber/resin powder and organic plastic materials. Mix the modified powder with PP/PE plastic, plus weather-resistant, anti-aging and toughening additives according to exclusive formulas. and the mixture shall be made into compound granules by our WPC granulation machine

2.5 Extrusion Molding & Post-processing: Transport the composited WPC granules materials to a twin-screw extruder for high-temperature melting and one-time extrusion molding. After cooling, shaping, traction, cutting, surface embossing and anti-slip treatment, finished WPC products are obtained

3. Full Set of Supporting Equipment Provided by Yongte

3.1 Waste PCB Recycling & Powder Processing Equipment

• Automatic PCB dismantling and sorting machine
• High-efficiency low-temperature crusher
• Ultra-fine grinding mill
• Electrostatic separator & gravity sorting machine (for metal-nonmetal separation)
• Dust removal and centralized collection system (environmentally compliant)

3.2 Step 2: Compounding & Granulation

• High-speed mixing: Recycled plastic flakes (20–40%) are blended with wood flour/glass fiber (50–70%) and additives (3–5%: coupling agents, UV stabilizers, lubricants).
• Twin-screw granulation: Conical twin-screw extruders melt and homogenize the blend at 150–190°C, cutting it into uniform WPC pellets.

3.3 Step 3: WPC Extrusion & Finishing

• Co-extrusion: Single/twin-screw extruders process WPC pellets into profiles (decking, fencing) with a smooth surface layer (co-extruded for durability).
• Calibration & cutting: Vacuum cooling tanks and automatic cutters ensure precise dimensions; embossing/sanding machines add wood-like textures.

3.4 Closed-Loop Feature

End-of-life WPC products can be re-crushed and re-extruded without significant performance loss, enabling a 100% circular system.

5. Real-World Case Studies

5.1 India: Plastic Road Waste to WPC Lumber

Yongte installed a line in India processing plastic road waste (including PE/PP films and packaging scraps) into solid WPC lumber. The system converts 500 kg/hour of waste into durable planks for fencing and pallets, solving local plastic pollution issues.

5.2 Canada: PCB Waste to WPC Decking

A Canadian plant uses Yongte’s WPC line to recycle waste fiberglass made from PCB wastage (70%) with recycled PE/PP (26%) into high-performance decking. The co-extruded products resist rot, UV, and insects, replacing traditional wood decking.

5.3 Agricultural Film Waste to Green Building Materials

Yongte’s YT-450 model processes waste agricultural films (60–70%) with wood flour into WPC decking and fencing. The line reduces farm plastic waste while producing eco-friendly building materials.