THEYSOHN Counter-Rotating Parallel Twin-Screw Barrel — PIPLL Machinery's Premium Solution for Global Extrusion
Founded in 1945, Theysohn Extrusion Technology (THEYSOHN) boasts over 80 years of expertise in plastic extrusion, having delivered 40,000+ extruders worldwide as a top-tier manufacturer. Now, PIPLL offers the XTS series counter-rotating parallel twin-screw barrels, a premium solution tailored for the most demanding applications, bringing THEYSOHN's proven German engineering directly to your production line.
Base materials: 38CrMoAlA, alloy steel
Size: Φ68-Φ136，
L/D: 24D, 26D, 32D 36D — each precisely tailored to specific product and formulation requirements:
Treatment: Bimetallic inner case barrel & bimetallic screw, bimetallic inner grooves barrel & bimetallic screw, nitriding barrel & nitriding screw, electro-chromism.
PIPLL leverages THEYSOHN's German full-spectrum manufacturing, patented T-series wear technology, and specialized soft PVC design to deliver unmatched performance. The XTS series, engineered with modular flexibility, sets the industry standard for PVC siding, soft PVC products, and high-filled pipe production. Through PIPLL, customers gain access to three cutting-edge wear-resistant solutions: nickel-based bimetallic barrels (HRC58-62) ideal for pure PVC and low-to-medium filled compounds, lasting 3-4 times longer than standard nitrided steel; tungsten carbide bimetallic barrels (HRC65-68) handling 80+ parts high-filled formulations and recycled materials, with a lifespan exceeding 50,000 hours; and fully chrome-plated soft PVC screws (Ra≤0.2μm) that prevent material sticking and degradation—the global preferred choice for soft PVC extrusion.
24D: Optimized for rapid extrusion of general-purpose pipes and profiles, ensuring efficient and stable output.
26D: Designed for high-filled pipes and WPC profiles, delivering robust performance with challenging compound formulations.
32D: Ideal for manufacturing PVC free-foam boards and SPC flooring, guaranteeing excellent plasticization and product quality.
36D: Specialized for soft PVC products and medical-grade PVC extrusion, meeting the most stringent application demands.
PIPLL Customization Service Advantages
• ✅ High-precision compatible replacement of screw barrels for the full range of THEYSOHN models.
• ✅ Personalized structural optimization based on customers' material formulas and production capacity needs.
• ✅ Upgrade and transformation of existing machines: Providing solutions for wear resistance upgrade, capacity enhancement, and process optimization.
PIPLL ensures the XTS series covers four standard L/D ratios (24D-36D), featuring segmented modular barrels for easy section replacement and hassle-free maintenance. Precision-engineered to micron-level accuracy with coaxiality within 0.015mm, these barrels deliver over 7,000 hours of reliable operation. They dominate applications including PVC exterior siding (holding 50%+ global market share), piping, soft PVC products, profiles, sheets, and high-filled composites.
PIPLL goes further by offering fully customized Theysohn screw barrels, tailoring every detail to meet specific process and formulation needs. With PIPLL, you get not just premium German engineering, but end-to-end customization and global support to elevate your extrusion productivity—because PIPLL is committed to powering your success with reliable, high-performance solutions.
PIPLL Compatible THEYSOHN Main Models & Production Capacity Parameters
Model No. | Nominal Screw Diameter (mm) | L/D Ratio Range | Motor Power (kW) | PVC-U Output Range (kg/h) | Core Application Scenarios |
XTS 68 | 68 | 24-32 L/D | 45-75 | 100-350 | Small-diameter pipes, small profiles, soft PVC products |
XTS 88 | 88 | 24-36 L/D | 75-132 | 250-700 | PVC exterior wall panels, DN110-DN315 pipes, medium-width sheets |
XTS 108 | 108 | 24-36 L/D | 132-220 | 500-1200 | Large-diameter pipes, ultra-wide sheets, high-filled wood-plastic composites |
XTS 136 | 136 | 24-32 L/D | 220-315 | 900-1800 | DN400-DN1200 extra-large-diameter pipes, ultra-wide waterproof membranes |
Technical Specifications
PIPLL Bimetallic Barrels
Item | PIPLL01 Alloy | PIPLL02 Alloy | PIPLL03 Alloy | PIPLL04 Alloy |
Alloy Components | Fe+Ni+Cr+B<br>(Fe:65, Ni:14, Cr:8, B:3.5) | Ni+Cr+Co+B | Ni+Cr+Co+V+B | Ni+Wc+Cr+B<br>(Ni:50, Wc:1535, Cr:68, B:2.5~3.2) |
Wear Resistance | ★★★ Very Good | ★★ Good | ★★★ Very Good | ★★★★ Excellent |
Corrosion Resistance | ★★ Good | ★★★ Very Good | ★★★ Very Good | ★★★ Very Good |
Alloy Thickness | 2~3mm | 1.5~2mm | 1.5~2mm | 1.5~2mm |
Hardness | HRC 58-65 | HRC 50-58 | HRC 55-60 | HRC 55-65 |
Max Working Temperature | ≤400℃ | ≤450℃ | ≤450℃ | ≤600℃ |
Thermal Expansion Coefficient (RT~250℃) | 11.4x10⁻⁶/℃ | 11.0x10⁻⁶/℃ | 11.0x10⁻⁶/℃ | 11.5x10⁻⁶/℃ |
Thermal Expansion Coefficient (RT~400℃) | 11.4x10⁻⁶/℃ | 11.4x10⁻⁶/℃ | 12.4x10⁻⁶/℃ | 12x10⁻⁶/℃ |
Workable Length Range | 700mm~3000mm per piece | |||
Commonly Used Base Steel | 40Cr, 42CrMo | |||
Rating Standard: ★★★★ Excellent; ★★★ Very Good; ★★ Good
PIPLL Bimetallic Screws
Item | Ni60 | CoImonoy 56 | CoImonoy 83 |
Compatible Screw Types | Single Screw, Twin Parallel Screw, Twin Conical Screw | ||
Alloy Components | Ni+Cr+Fe+Si<br>(Ni:65, Cr:17, Fe:15, Si:5) | Ni+Cr+Si+Fe<br>(Ni: 68, Cr:18, Si:5, Fe:5) | Ni+Wc+Cr+C<br>(Ni:40, Wc:34, Cr:20, C:2) |
Wear Resistance | ★★★ Very Good | ★★★ Very Good | ★★★★ Excellent |
Corrosion Resistance | ★★★★ Excellent | ★★★★ Excellent | ★★★★ Excellent |
Alloy Thickness | 1~1.5mm | 1~1.5mm | 1~1.5mm |
Hardness | HRC 56-62 | HRC 46~61 | HRC 43-48 |
Recommended Glass Fiber Content | Under 10% | ||
Workable Length Range | Customized any length as required | ||
Commonly Used Base Steel | 38CrMoAlA(1.8509), 34CrAINi7(1.8550), 31CrMoV9(1.8519) | ||
Rating Standard: ★★★★ Excellent; ★★★ Very Good; ★★ Good
