Precision Twin-Screw Elements | Core Drive Parts for Extrusion Processing
Precision twin-screw elements are core parts for extrusion lines. Made of high-quality materials with fine workmanship, they solve issues like fast wear, low torque transmission, poor fit and short service life. Ideal for heavy-duty continuous extrusion, they improve production efficiency, reduce maintenance and ensure long-term stable operation in plastic extrusion.
Key Product Benefits
Superior Wear & Corrosion Resistance
High-performance alloy plus professional hardening resists abrasion and chemical corrosion, keeping stable performance in tough working conditions.
Efficient High-Torque Transmission
Optimized screw profile enables lossless power transfer. Stable high torque boosts output and ensures uniform product quality under heavy loads.
Micron-level Fitting Precision
Ultra-precision machining ensures tight fit, cutting vibration, noise, material backflow and leakage for higher transmission efficiency.
Longer Extruder Service Life
Reduced friction and wear extend equipment lifespan, lowering replacement and operation costs.
Product show
Technical Specifications
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Parameter
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Detailed Specification
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Product Name
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Parallel Twin Screw Extruder Elements
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Standard Hardness
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HRC 58–62 (Deep Hardened)
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Core Materials
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38CrMoAlA,Tool Steel, Alloy Steel, WR13, HIP Steel
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Processing Tech
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CNC Precision Machining & Vacuum Heat Treatment
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Diameter Range
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Ø20mm – Ø133mm (Customizable up to Ø300mm)
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Company Strength
1) 20+ Years of Material Expertise: We don't just machine parts; we understand the metallurgy behind alloy materials. We know exactly which steel grade fits your specific calcium powder proportion (e.g., 35% CaCO3).
2) Global OEM Compatibility: Our database covers almost all major international brands. You only need to provide the model or a simple drawing.
3) Strict Quality Gate: Every shipment includes a Material Certificate and a Dimensional Inspection Report. We offer video outgoing inspections for your peace of mind.
4) Cost-Effective Logistics: Fast turnaround (30–60days) with reliable international shipping, ensuring your production line never stays idle.
QC
Target Applications & Industries
Our screw elements are the "workhorse" for challenging compounding tasks:
WPC (Wood Plastic Composite): Handling high-abrasion wood fiber loads.
PVC Compounding: Resistant to the corrosive nature of rigid and soft PVC.
Masterbatch Production: High-dispersion elements for carbon black and TiO2.
Engineering Plastics: Processing PA6, PA66 + Glass Fiber (up to 50%+).
Biodegradable Plastics: Precise temperature control for PLA/PBAT/Starch blends.
FAQ
Q1: How do I know if these elements will fit my specific extruder brand?
A: We manufacture elements that are 100% interchangeable with major brands like Coperion, Leistritz, and others. We verify fitment through standard serial numbers or custom drawings.
Q2: My process uses 35%+ Calcium Powder. How will your elements hold up?
A: For high-filler (CaCO3) applications like PVC/WPC, we recommend our specialized High-Vanadium Alloy or Bimetallic coatings, which specifically prevent abrasive "scouring" of the screw flights.
Q3: Can you produce custom kneading blocks based on our formula?
A: Yes. We can customize the L/D ratio, stagger angles, and disk thickness to improve mixing efficiency for specialized engineering plastics.
Q4: Do you offer samples for testing?
A: We encourage trial orders. Testing a set of kneading blocks in your most high-wear zone is the best way to prove our durability.
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