PIPLL WPC Extrusion Screws & Barrels
PIPLL WPC extrusion screw and barrel solutions are designed for stable and efficient processing of wood-plastic composites. Optimized screw geometry, mixing sections, and wear-resistant materials help achieve uniform plasticization, consistent melt quality, and reliable extrusion performance.
Our WPC screw and barrel solutions are suitable for profiles, decking, fencing, boards, and other wood-plastic composite products. Screw and barrel configurations can be customized according to the extruder, material formulation, wood fiber content, and production requirements.
WPC compounds typically contain wood flour or wood fiber together with thermoplastic polymers and additives. The high filler content can increase screw and barrel wear and requires effective mixing and temperature control.
· Optimized Mixing: Customized mixing sections help improve the dispersion of wood fiber and polymer.
· Stable Plasticization: Balanced conveying, compression, and metering sections support consistent melt quality.
· Wear-Resistant Construction: Nitrided and bimetallic options are available for different WPC formulations and wear conditions.
· Customized Screw Design: Screw geometry can be optimized according to material formulation, filler content, and extrusion requirements.
· Twin-Screw Compatibility: Parallel and conical twin-screw configurations are available for different WPC extrusion lines.
· OEM Replacement: Screws and barrels can be manufactured according to original drawings, extruder models, or existing component dimensions.
Parameter | WPC Extrusion Screw & Barrel |
Application | Wood-Plastic Composite Extrusion |
Extruder Type | Parallel / Conical Twin-Screw |
Screw Diameter | Customized |
L/D Ratio | Customized |
Screw Material | 38CrMoAlA / Customized |
Surface Treatment | Nitriding / Bimetallic |
Barrel Type | Nitrided / Bimetallic |
Screw Design | Customized to Material & Extruder |
Wood Fiber Content | Customized to Formulation |
Manufacturing | OEM / Replacement / Custom |
Specifications are customized according to your extruder model, WPC formulation, wood fiber content, product type, and production requirements.
Production Issue | Possible Cause | PIPLL Solution |
Unstable extrusion output | Poor conveying or inconsistent feeding | Optimized screw conveying section |
Uneven plasticization | Inadequate mixing or compression | Customized mixing and compression sections |
Poor surface quality | Uneven melt dispersion | Optimized mixing and metering design |
Fast screw and barrel wear | High wood fiber or mineral filler content | Nitrided or bimetallic construction |
Short service life | Improper material selection | Application-based material selection |
Material degradation | Excessive shear or temperature | Balanced screw geometry and processing design |
PIPLL WPC extrusion screws and barrels are suitable for the production of:
· WPC Decking
· WPC Wall Panels
· WPC Profiles
· WPC Fencing
· WPC Boards
· WPC Doors and Windows
· Other Wood-Plastic Composite Products
PIPLL provides customized screw and barrel solutions for demanding plastic extrusion applications.
Our engineers can optimize screw geometry, material, surface treatment, and barrel construction according to your WPC formulation and production conditions.
For abrasive WPC formulations, bimetallic screw and barrel solutions can provide additional wear protection and help extend component service life.
Looking for a replacement WPC extrusion screw or barrel?
Send us your extruder model, screw diameter, L/D ratio, WPC formulation, wood fiber content, or original drawing.
PIPLL will recommend a suitable screw and barrel solution for your WPC extrusion line.
+86 15267878906
1306 W building , NB-IoT Industrial Park, No. 199 Changxing Road, Jiangbei, Ningbo.
