Product details
A Polymer Plastic Conical Double Screw Extruder (also known as a Conical Twin-Screw Extruder) is a high-efficiency equipment specifically designed for the processing of heat-sensitive materials such as PVC powder and various polymer blends. Unlike parallel twin-screw extruders, the conical design features two screws with diameters that decrease from the feed section to the discharge section.
Key Features & Advantages
High Pressure & Output: The large diameter at the feeding end allows for high intake volume, while the smaller diameter at the discharge end creates significant compression, resulting in stable and high-pressure extrusion.
Superior Mixing & Homogenization: The varying pitch and depth of the screws ensure thorough shear, mixing, and plasticization of the polymer melt.
Heat Sensitivity Management: This design is particularly effective for PVC processing as it provides efficient plasticization at lower melt temperatures, reducing the risk of thermal degradation.
Versatility: Capable of processing powder-to-product directly, eliminating the need for a separate pelletizing step in many production lines.
Technical Specifications
Materials Processed: PVC, PP, PE, polymer blends, and wood-plastic composites (WPC).
Screw Configuration: Conical, counter-rotating (usually).
Control Systems: Often equipped with PLC control and Siemens/ABB components for precision.
Cooling Systems: Air or oil-cooled screws and barrels to maintain precise temperature profiles.
Primary Applications Pipe Production: PVC electrical conduits, water supply pipes, and drainage pipes.
Profile Extrusion: Window and door frames, panels, and decorative moldings.
Sheet & Board: WPC floor boards, foam boards, and industrial sheets.
Lab & R&D: Smaller models are used for polymer testing and material development.
We can provide: 1. Laboratory models 2. Industrial extruders used for complete high-end production lines. 3. Industrial extruders with complete high-end production lines.




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Step 1
Payment and order readiness
Minimum order: 1 Units
Payment terms, specifications, and order details are confirmed before preparation begins.
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Step 2
Preparation
120 days
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Step 3
Packaging and dispatch
Ocean freight via Maersk · Approx. shipping fee: $ 0.84 for 1 unit · Transit time: Est. 17-24 days
Final packing, freight, and delivery dates are confirmed before dispatch.
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