Parallel Twin Screw Barrel – High Precision for PVC, WPC, Compounding & Extrusion Lines

Our Parallel Twin Screw Barrels are engineered for high-output extrusion and precise melt quality, offering exceptional wear and corrosion resistance for a wide range of materials. We specialize in manufacturing screw and barrel systems compatible with leading extruder brands such as KraussMaffei, Coperion, Leistritz, USEON, and JSW.

🔧 Technical Specifications:

• Material Options:

  • 38CrMoAlA (nitrided): Surface hardness HV ≥ 900, depth 0.5–0.8mm

  • Bimetallic alloy (Fe-based/Ni-based): Hardness HRC 60–65, wear life 2–3x longer

• L/D Ratio: 18:1 to 36:1, tailored to application

• Barrel Inner Bore Hardness: ≥ HRC 60

• Screw Diameter Range: Ø45mm – Ø150mm

• Surface Roughness: Ra ≤ 0.4μm, ensuring smooth polymer flow

🛠️ Application Areas:

• PVC pipe and profile extrusion

• WPC (wood-plastic composite) production

• Plastic compounding (CaCO₃, carbon black, fillers)

• Pelletizing of engineering plastics

• Twin screw extrusion for cable ducts, foam boards, window profiles

🌍 Compatible Brands:

100% compatible with mainstream twin screw extruders, including:

• KraussMaffei

• Coperion

• Leistritz

• USEON

• JSW (Japan Steel Works)

📈 Why Choose Our Parallel Twin Screw Barrel?

• Up to 25% higher output with optimized screw geometry

• Extended lifespan: Bimetallic barrels last over 8000+ hours in abrasive applications

• Precise temperature control for stable melt pressure and uniform plasticization

• Custom screw elements designed based on your material formulation