Engineered for Reliability and Precision
At ZHITIAN, we manufacture Twin Screw Extruder Screw Elements designed for the world’s most demanding compounding environments. Each element is machined from high-performance alloys using advanced CNC and heat treatment technology, ensuring perfect geometry, mechanical stability, and interchangeability across leading extruder systems.
Our design philosophy combines engineering precision, material science, and process understanding, allowing our screw elements to deliver stable torque transfer, optimized shear distribution, and extended service life in continuous operation.
Advanced Materials for Extreme Applications
The performance of screw elements is largely determined by their base materials. ZHITIAN offers a full range of materials engineered to withstand mechanical and chemical stress in polymer and chemical processing.
| Material Grade |
Category |
Key Properties |
Typical Application |
| 38CrMoAla |
Nitrided Steel |
Cost-effective, surface hardness up to 1000HV |
General compounding |
| W6Mo5Cr4V2 |
High-Speed Steel |
Superior wear resistance, stable at high temperature |
Glass fiber reinforced plastics |
| Cr12MoV / DC53 |
Tool Steel |
High toughness, anti-deformation |
Masterbatch and filled polymer |
| SAM26 / SAM39 |
PM-HIP Alloy |
Exceptional wear and corrosion resistance |
Engineering plastics and flame retardants |
| CPM10V / CPM9V |
PM-HIP Alloy |
Extreme hardness up to 66HRC |
Abrasive and reactive polymers |
| 440C / Hastelloy-C |
Stainless Alloy |
Corrosion-resistant, ideal for chemical and food extrusion |
Reactive or corrosive materials |
Design and Machining Excellence
Each ZHITIAN screw element undergoes a tightly controlled manufacturing process:
- 3D CAD Design & Digital Simulation – Optimized flow geometry and torque analysis.
- Precision CNC Machining – Dimensional accuracy within ±0.02 mm.
- Vacuum Heat Treatment – Achieving uniform hardness and grain stability.
- Grinding & Surface Finishing – Ensuring perfect engagement and minimal wear.
- Inspection & Traceability – 100% tested for dimensional and metallurgical quality.
Performance Advantages
Extended Service Life: PM-HIP alloys deliver superior resistance against abrasion and fatigue.
Corrosion Protection: Suitable for reactive materials, chemical additives, and bio-based polymers.
Custom Geometry: Profile, pitch, and kneading angles are fully adjustable to match process needs.
High Torque Stability: Designed for consistent torque transmission even under heavy load.
Compatibility: Fully interchangeable with extruders from major global manufacturers.
Typical Applications
Engineering plastics (PA, PC, PBT, ABS)
Color and additive masterbatch production
Biodegradable and recycled polymer processing
Food and feed extrusion lines
Specialty chemical and elastomer compounding
Technical Specifications
| Parameter |
Specification |
| Machining Tolerance |
±0.02 mm |
| Surface Hardness |
58–66 HRC |
| Treatment Options |
Nitriding, Polishing, Coating |
| Length Range |
18–120 mm per segment |
| Torque Transmission |
Optimized for co-rotating systems |
| Material Options |
Nitrided, Tool Steel, PM-HIP, Stainless Alloy |
| Quality Standard |
ISO9001 & Internal SOP/SIP Inspection |
| Country of Manufacture |
China |
Engineering Attributes
| Attribute Name |
Value |
| Structure Type |
Co-rotating twin screw segment |
| Material Category |
Tool steel / PM-HIP alloy |
| Processing Method |
CNC precision machining |
| Surface Treatment |
Nitriding / Polishing / Coating |
| Hardness Range |
58–66 HRC |
| Customization |
Geometry & material optional |
| Compatibility |
Multi-brand extruder systems |
| Brand |
ZHITIAN |
Why Engineers Choose ZHITIAN
ZHITIAN’s engineering team has over 20 years of expertise in the design and manufacture of twin screw extruder components. Our integrated process—from powder metallurgy to precision machining—ensures consistency, efficiency, and reliability across every production batch.
With exports to Europe, North America, and Southeast Asia, ZHITIAN is recognized globally for precision, durability, and value in extrusion component manufacturing.
FAQ – Twin Screw Extruder Screw Elements
Q1: What’s the best material for highly abrasive formulations?
A1: We recommend PM-HIP alloys suchs as SAM26 or CPM10V for maximum wear resistance.
Q2: Can ZHITIAN manufacture non-standard or custom screw profiles?
A2: Yes. Custom geometry and material combinations can be produced based on drawings or performance targets.
Q3: How long is the typical service life?
A3: Depending on material and application, service life can be 2–5 times longer than conventional tool steel elements.
Q4: Are these elements compatible with other international extruder brands?
A4: Absolutely. All dimensions follow OEM standards or can be customized for specific models.
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