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Product Description
PE-WPC Granulation Line is designed to convert recycled polyethylene (PE) and wood fiber into high-quality Wood Plastic Composite (WPC) pellets for profile extrusion and molding applications. The production line integrates high-speed mixing, extrusion, strand cooling, pelletizing, and automatic cutting into a continuous manufacturing process, ensuring stable pellet quality and consistent material performance.
The finished WPC pellets are widely used for producing WPC decking, fencing, wall cladding, outdoor furniture, pergolas, and other composite building materials. By recycling plastic and wood waste into reusable raw materials, the PE-WPC granulation line helps manufacturers reduce production costs, improve material utilization, and support sustainable manufacturing practices.
The PE-WPC Granulation Line features a parallel twin-screw extrusion system that combines material mixing and drying within the extrusion process, eliminating the need for a separate hot mixer in many production configurations. Compared with conventional systems that typically require a 90 kW hot mixer, the integrated process operates at approximately 26 kW for the mixing and drying stage, reducing energy consumption by more than 70% while maintaining a balanced material feeding rate and stable extrusion performance.
The mixing and extrusion capacities are designed to work at matched production rates, allowing the line to operate continuously without the waiting periods associated with traditional batch mixing. This continuous workflow helps improve overall equipment utilization and can increase Overall Equipment Effectiveness (OEE) by up to 30%, supporting stable, long-term production for manufacturers of Wood Plastic Composite (WPC) pellets.
The optimized parallel twin-screw configuration provides intensive mixing and controlled shear, enabling uniform dispersion of wood fibers in composite materials. The system is capable of processing formulations containing up to 70% wood fiber, producing pellets with a typical density of 0.7–1.1 g/cm³ and consistent melt quality. These characteristics help provide stable raw materials for manufacturing WPC decking, fencing, wall panels, and other composite profiles.
Multiple vacuum venting sections are incorporated into the extrusion process to remove moisture and volatile compounds released from wood fibers during granulation. Under normal production conditions, the finished pellets maintain a residual moisture content below 0.8%, helping reduce defects during downstream extrusion or molding while improving the dimensional consistency of finished WPC products.
The production line integrates strand extrusion, water cooling, and rotary pelletizing to produce uniform Wood Plastic Composite pellets. Standard pellet size is 3–4 mm in length with a tolerance of approximately ±0.3 mm, ensuring reliable feeding during subsequent processing. Depending on material formulation and production requirements, the line offers an output capacity ranging from 500 to 2,000 kg/h, making it suitable for both medium- and high-capacity WPC manufacturing operations.
The PE-WPC Granulation Line produces Wood Plastic Composite (WPC) pellets that serve as the primary raw material for manufacturing outdoor decking and flooring products. With stable material composition and uniform pellet quality, the pellets support consistent extrusion performance and help produce decking profiles with reliable mechanical strength, dimensional stability, and weather resistance. These materials are widely used in residential, commercial, and public outdoor environments.
The WPC pellets produced by this line are suitable for manufacturing a wide range of outdoor landscape products, including fencing panels, garden edging, pergolas, railings, and landscape structures. The homogeneous pellet formulation helps ensure consistent processing during extrusion while providing finished products with good resistance to moisture, insects, and long-term outdoor exposure, making them suitable for various landscaping applications.
In addition to outdoor applications, the composite pellets can also be used to manufacture interior wall panels, decorative cladding, partition panels, and furniture components. By combining recycled polyethylene with wood fiber, the material provides the natural appearance of wood while offering improved moisture resistance, dimensional stability, and processing consistency compared with untreated solid timber. These characteristics make WPC materials suitable for a variety of interior decoration and furniture manufacturing applications.
A PE-WPC Granulation Line is designed to process recycled polyethylene (PE), wood flour or wood fiber, and compatible additives into Wood Plastic Composite (WPC) pellets. Depending on the product requirements, formulations may also include stabilizers, lubricants, coupling agents, pigments, and other processing additives to improve pellet performance and extrusion stability.
The finished Wood Plastic Composite pellets are commonly used as raw materials for manufacturing:
WPC decking
Outdoor flooring
Fencing panels
Wall cladding
Pergolas
Garden products
Railings
Decorative panels
Furniture components
Other WPC profiles
These products are widely applied in residential, commercial, and public construction projects.
Depending on the machine model, raw material formulation, and production conditions, the PE-WPC Granulation Line typically offers capacities ranging from 500 kg/h to 2,000 kg/h. Manufacturers can select the appropriate configuration according to their production requirements.
Not necessarily. The parallel twin-screw design integrates mixing and drying functions into the extrusion process. In many production configurations, this eliminates the need for a separate hot mixer, helping simplify the production process and reduce energy consumption compared with conventional systems.
During extrusion, wood fibers may release moisture and volatile compounds. The integrated vacuum venting system removes these substances to help maintain a residual pellet moisture content below 0.8% under normal operating conditions. This contributes to more stable downstream extrusion and reduces the risk of surface defects in finished WPC products.
The optimized twin-screw extrusion system can process formulations containing up to 70% wood fiber, depending on the material recipe and product requirements. The actual formulation should be determined according to the desired mechanical properties and end-use application.
The pelletizing system typically produces pellets with a length of 3–4 mm and a dimensional tolerance of approximately ±0.3 mm. Uniform pellet size helps improve feeding stability during subsequent extrusion or molding processes.
Compared with conventional pellet production methods, an integrated PE-WPC Granulation Line can offer several operational benefits, including:
Continuous mixing and extrusion
Reduced energy consumption through integrated processing
Stable pellet size and density
Uniform wood fiber dispersion
Efficient moisture and volatile removal
Consistent raw material quality for downstream WPC profile production
The actual performance depends on raw materials, formulation, equipment configuration, and operating conditions.
Yes. Most manufacturers can configure the production line based on customer requirements, including:
Production capacity
Screw diameter and L/D ratio
Feeding system
Pelletizing method
Electrical control system
Vacuum degassing configuration
Material handling equipment
Customization helps match the equipment to different WPC formulations and production processes.
PE-WPC Granulation Lines are widely used in industries that manufacture Wood Plastic Composite materials, including:
Building and construction materials
Outdoor decking and flooring
Landscape and fencing systems
Decorative wall panel production
Furniture manufacturing
Plastic recycling and composite material processing
These industries use WPC pellets as raw materials for producing durable composite products for both indoor and outdoor applications.
