Custom Twin Screw Extruder Screw Elements with Wear and Corrosion Resistant Alloys
Product Overview – Twin Screw Extruder Screw Elements
ZHITIAN’s Twin Screw Extruder Screw Elements are precision-engineered components designed to deliver efficient material conveying, mixing, and kneading in co-rotating twin screw extruders.
Every element is CNC-machined to micrometer-level tolerances, ensuring smooth engagement and consistent torque transfer during high-speed operation.
These components are ideal for compounders requiring long service life and accurate process control across a wide range of polymer and chemical applications.
Material Selection for Twin Screw Extruder Screw Elements
ZHITIAN offers a comprehensive portfolio of wear-resistant and corrosion-resistant materials for screw element manufacturing:
- 38CrMoAla (Nitrided Steel) – Cost-effective option for general plastic compounding.
- W6Mo5Cr4V2 (High-Speed Tool Steel) – Excellent wear resistance for abrasive materials.
- Cr12MoV / SKD11 / DC53 – Enhanced surface hardness for filled polymer processing.
- PM-HIP Materials (SAM26, SAM39, CPM10V, CPM9V) – Exceptional resistance to both wear and corrosion.
- 440C Stainless Steel / Hastelloy-C Alloy – Suitable for chemical, food-grade, and reactive materials.
Performance Advantages of ZHITIAN Twin Screw Extruder Screw Elements
- High Precision Machining – Controlled within ±0.02 mm for perfect interlocking assembly.
- Extended Wear Life – PM-HIP materials ensure superior abrasion resistance.
- Excellent Corrosion Stability – Designed for reactive and high-temperature polymers.
- Customizable Geometry – Screw profile, pitch, and kneading angle can be fully tailored.
- Global Compatibility – Fits extruders from Coperion, Leistritz, JSW, TSK, Feddem, and more.
- Strict Quality Control – 100% inspected for hardness, concentricity, and metallurgical integrity.
Applications of Twin Screw Extruder Screw Elements
- Engineering plastics (PA, PC, PBT, ABS)
- Color masterbatch and filler compounds
- Biodegradable and recycled materials
- Food and feed extrusion
- Chemical and additive compounding
Technical Specifications Table
| Attribute | Specification |
|---|---|
| Material Options | 38CrMoAla, W6Mo5Cr4V2, SAM26, CPM10V, 440C |
| Hardness | 58–66 HRC (depending on steel grade) |
| Surface Treatment | Nitriding / Mirror Polishing / Coating |
| Machining Precision | ±0.02 mm |
| Processing Method | CNC + Heat Treatment + Fine Grinding |
| Compatible Extruders | Coperion / Leistritz / JSW / TSK / Fessia Macross |
| Application Industries | Plastic / Chemical / Food / Bio-based Materials |
| Brand | ZHITIAN |
Why Choose ZHITIAN Twin Screw Extruder Screw Elements
With over two decades of manufacturing experience, ZHITIAN specializes in high-precision twin screw extruder parts.
We integrate powder metallurgy technology, advanced CNC machining, and in-house heat treatment to ensure stable quality and long-lasting performance.
Our screw elements are widely exported to Europe, North America, and Southeast Asia, recognized for precision fit and consistent extrusion performance.
FAQ – Twin Screw Extruder Screw Elements
Q1: Are these screw elements compatible with my existing extruder?
A1: Yes. We produce according to OEM dimensions or customized drawings.
Q2: Which material should I choose for glass-filled or abrasive polymers?
A2: W6Mo5Cr4V2 or PM-HIP grades (SAM26, CPM10V) are recommended.
Q3: Can I order sample screw elements for testing?
A3: Yes. Sample production is available for compatibility verification before batch orders.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.