The WPC/WPE Granulator Extrusion Line is a state-of-the-art manufacturing solution specifically engineered for the efficient production of wood-plastic composite (WPC) or wood-polyethylene (WPE) granules. These granules serve as the foundation for a wide variety of composite products such as WPC profiles, decking boards, formwork panels, and outdoor furniture materials. The system is designed for high precision, stability, and energy efficiency—ensuring consistent performance even during continuous, large-scale production.

With advanced automation and temperature control, the line guarantees superior mixing performance, uniform pellet size, and excellent dispersion of wood fibers within the polymer matrix. The result is a durable, eco-friendly granule suitable for extrusion, injection molding, or other downstream processing. This line is ideal for manufacturers aiming to reduce material waste and improve production efficiency while maintaining the highest product quality.

Main Features

1. High-Efficiency Twin Screw Extruder — Equipped with a co-rotating twin screw design, the extruder provides exceptional mixing and dispersion of wood fibers and polymers. This ensures optimal melting, homogeneous material blending, and improved mechanical properties in the final granules.
2. Advanced Temperature Control System — The intelligent temperature control zones maintain precise thermal stability throughout the process, preventing polymer degradation and protecting wood fibers from thermal damage.
3. Automatic Feeding & Dosing System — Features computer-controlled feeders that automatically measure and deliver the correct ratios of polymer resin, wood powder, and additives. This ensures consistent quality and uniformity in every batch.
4. Granulating & Cooling Unit — The granulation section can use air or water cooling methods depending on product requirements. It produces smooth, uniform pellets with excellent flow characteristics suitable for downstream extrusion or molding.
5. Energy-Saving Design — The extrusion line is optimized with energy-efficient screw geometry, advanced heating systems, and low-friction gear mechanisms, significantly reducing power consumption while maintaining maximum throughput.
6. Easy Operation & Maintenance — Equipped with a PLC-controlled interface and touchscreen operation panel, allowing operators to monitor temperature, pressure, and feeding speed in real-time for safe and stable production.

Production Process

1. Raw Material Feeding — Wood powder, polymer resin (such as PE, PP, or PVC), and additives like coupling agents and stabilizers are loaded automatically using precision feeding systems.
2. Compounding & Extrusion — Inside the twin-screw extruder, materials are melted, compounded, and homogenized under controlled temperature and shear rate, producing a consistent melt blend.
3. Strand Cooling & Cutting — The hot extruded strands are cooled in a water bath or air cooling channel, then passed through a pelletizer for precise cutting into uniform granules.
4. Drying & Collection — The pellets are dried, screened, and collected for packaging or direct feeding into WPC profile or sheet extrusion lines.

This WPC/WPE Granulator Extrusion Line offers an environmentally friendly and cost-effective solution for recycling and reusing waste materials, transforming them into high-value, sustainable composite granules. Its combination of precision engineering, intelligent control, and efficient performance makes it the ideal choice for modern plastic and composite manufacturing facilities.