Introduction
Twin screw extruder performance heavily relies on the quality and design of its screw elements. Standard components may not meet unique production demands, making custom and OEM screw elements essential for optimized extrusion. Tailored solutions enhance material processing, reduce downtime, and ensure consistent product quality.
Why Choose Custom and OEM Screw Elements?
Custom and OEM screw elements allow manufacturers to:
- Adjust screw geometry for specific materials and processes
- Select high-performance materials for wear and corrosion resistance
- Apply surface treatments to extend service life
- Maintain compatibility with existing extruder systems
These solutions ensure peak efficiency while minimizing operational disruptions.
High-Performance Materials for Screw Elements
| Material | Features | Typical Applications |
| W6Mo5Cr4V2 | Exceptional hardness and wear resistance | High-fill plastics, abrasive compounding |
| 38CrMoAl | Nitrided steel with balanced toughness | General polymer processing |
| Cr12MoV | High wear-resistant tool steel | Filled plastics, medium abrasive materials |
| SKD61 | Heat-resistant, maintains strength under thermal stress | High-temperature extrusion |
| PM-HIP alloys (SAM26, SAM39, CPM10V, CPM9V) | Superior wear and corrosion resistance | High-stress or corrosive materials |
Advantages of Custom and OEM Screw Elements
- Extended Service Life – Premium materials reduce wear and maintenance frequency.
- Optimized Production – Tailored geometry improves conveying, mixing, and devolatilization efficiency.
- Reduced Downtime – High-precision components ensure smooth assembly and operation.
- Compatibility – OEM replacements fit seamlessly in existing extruder models.
- Industry-Specific Solutions – Customization addresses plastics, rubber, masterbatch, and high-abrasion applications.
ZHITIAN’s Expertise
ZHITIAN specializes in the R&D and manufacturing of twin screw extruder screw elements. Key capabilities include:
- Precision CNC machining for tight tolerances
- Strict quality control, including dimensional and hardness inspections
- Rapid prototyping and small-batch production for OEM replacements
- Technical support for material selection, surface treatment, and process optimization
Custom Screw Element Attributes Example
| Attribute Name | Attribute Value |
| Material | W6Mo5Cr4V2 |
| Surface Treatment | None / Laser Cladding |
| Screw Type | Conveying / Kneading / Mixing |
| Flight Structure | Single / Double / Triple |
| Length | 100–500 mm |
| Diameter | 20–177 mm |
| Hardness | HRC 58–65 |
| Application | Plastics / Rubber / Masterbatch |
FAQ
Q1: What are the benefits of OEM screw elements compared to standard replacements?
A1: OEM screw elements ensure perfect compatibility, maintain extruder efficiency, and reduce potential downtime during installation.
Q2: Can ZHITIAN customize screw elements for unique formulations?
A2: Yes. We offer geometry, material, and surface treatment customization for plastics, rubber, and high-abrasion materials.
Q3: How do surface treatments enhance screw element performance?
A3: Treatments such as laser cladding or coatings improve wear and corrosion resistance, extending service life.
Q4: Are small-batch custom screw elements available?
A4: Yes. ZHITIAN supports rapid prototyping and small-batch production to meet research and special project requirements.
Conclusion
Custom and OEM screw elements are key to maximizing twin screw extruder performance. ZHITIAN’s high-quality materials, precision manufacturing, and expert customization services help manufacturers achieve consistent extrusion results, reduce downtime, and optimize production efficiency across a variety of industries.
