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.
