High-Precision Twin Screw Elements with Wear & Corrosion Resistant
Materials and Custom Geometry
ZHITIAN specializes in manufacturing high-precision twin screw
extruder elements. Our products are widely compatible with
mainstream international extruder brands such as Coperion,
Leistritz, Berstorff, JSW, Maris, Fessia Macross, and APV. We offer
personalized customization to meet your diverse process parameters,
wear resistance, corrosion resistance, and product lifespan
requirements.
Product Features and Advantages
1. High-Precision Machining
- All screw elements are CNC machined to ensure precise profiles and
tight geometric tolerances.
- Internal splines are inspected using specialized spline gauges to
guarantee full interchangeability with original parts and smooth
assembly.
2. Diverse Material Options to Suit Various Applications
ZHITIAN provides multiple alloy material options based on different
customer application needs:
| Material Category | Material Grade | Application Scenario |
|---|
| Wear-Resistant Materials | W6Mo5Cr4V2 (High-speed tool steel), PM-HIP: WR5, WR13, CPM10V | Suitable for high-fill, high-shear extrusion environments requiring
superior wear resistance. |
| Corrosion-Resistant Materials | 38CrMoAla (Nitrided steel), 316L, 440C stainless steels, PM-HIP:
WR4, CPM9V | Ideal for processing materials containing chlorine, acids, or other
corrosive media. |
| Wear & Corrosion Resistant | PM-HIP composite materials: WR13, CPM10V | Designed for extreme environments with simultaneous wear and
chemical attack. |
With years of accumulated data and customer feedback, ZHITIAN
recommends the most cost-effective material combinations to balance
service life and economics.
3. Comprehensive Types of Screw Elements with Customizable
Structures
ZHITIAN offers hundreds of standard models and flexible
customizations, including:
- Convey Screw Segments
- Kneading Blocks & Disks
- Mixing Segments
- Transition Elements & Decompression Sections
- Side Feeder Screw Elements
- Single/Double/Triple Flighted Designs
- OEM Special Parts Based on Customer Drawings
We support small batch custom orders and rapid tooling, ideal for
R&D companies or applications with strict process requirements.

Quality Control System
- Material Inspection: All raw materials are sourced from reputable
domestic or European PM material suppliers, verified through
chemical composition analysis and metallographic testing.
- Precision Machining: All elements are processed by 5-axis CNC
machining centers, ensuring profile accuracy, surface finish, and
fit precision.
- Spline Interchangeability Testing: Internal splines are verified
with precision gauges to ensure 100% compatibility with OEM models.
- Heat Treatment Process: Employing European PM high-speed steel
processing combined with strict heat treatment procedures
guarantees hardness consistency and international-level wear and
corrosion resistance.
- High Delivery Efficiency: Common models are stocked year-round; new
custom parts can be delivered within 45 days to meet urgent
replacement needs.
- Full Traceability Management: Every production batch is assigned a
unique serial number, ensuring 100% quality inspection,
documentation, and traceability.
Frequently Asked Questions (FAQ)
Q1: How do I select the right material for my process?
A1: Material selection depends on factors such as filler content,
presence of corrosive media, and processing temperature. ZHITIAN
engineers provide professional recommendations based on your
specific conditions.
Q2: Can I customize special geometric structures?
A2: Yes, we can quickly model and produce screw elements according
to your drawings or samples, suitable for pilot lines or new
formulations.
Q3: How do you ensure compatibility with my equipment?
A3: ZHITIAN maintains a comprehensive database of global mainstream
extruder models and uses dedicated tooling to guarantee precise fit
and stable production.
Q4: Do you support bulk purchases or long-term cooperation?
A4: We offer OEM customers inventory programs to ensure timely
spare parts supply, helping large manufacturers reduce inventory
costs.