Technical Parameters
| Item | Specification |
|---|---|
| Product Name | Twin Screw Barrel |
| Machine Type | Twin Screw Extruder |
| Screw Type | Co-rotating / Counter-rotating |
| Screw Diameter | Ø20–Ø400 mm |
| Barrel Length | Customized |
| L/D Ratio | 20:1–68:1 |
| Barrel Sections | 2–20 Sections (Custom Available) |
| Applicable Torque | High Torque / Standard Torque |
| Maximum Speed | Up to 1200 rpm |
| Barrel Material | 38CrMoAlA, 42CrMo, Tool Steel, HIP Alloy Steel |
| Liner Material | Bimetallic Alloy, Tool Steel, PM-HIP Alloy |
| Screw Material | 38CrMoAlA, W6Mo5Cr4V2, Tool Steel, PM-HIP Steel |
| Heating Method | Electric Heater / Ceramic Heater |
| Cooling Method | Water Cooling / Air Cooling |
| Heating Zones | Customized |
| Surface Hardness | HRC 58–64 (Depending on Material) |
| Barrel Liner Hardness | HRC 60–66 |
| Straightness | ≤0.015 mm / 1000 mm |
| Surface Roughness | Ra ≤0.4 μm |
| Service Life | 2–5 Times Longer than Standard Barrels* |
*Actual service life depends on material type, processing conditions, and maintenance.
Material Options
| Material | Features |
|---|---|
| 38CrMoAlA | Standard nitriding steel with excellent toughness |
| 42CrMo | High-strength alloy steel |
| Tool Steel | Excellent wear resistance |
| PM-HIP Alloy Steel | Premium wear and corrosion resistance |
| Bimetallic Alloy Liner | Outstanding abrasion resistance for filled materials |
Surface & Heat Treatment
| Treatment | Advantages |
|---|---|
| Gas Nitriding | High surface hardness and wear resistance |
| Vacuum Heat Treatment | Excellent dimensional stability |
| Hard Chrome Plating | Improved corrosion resistance |
| Bimetallic Alloy Lining | Superior wear resistance |
| Precision Grinding | High machining accuracy |
| Mirror Polishing | Smooth material flow and easier cleaning |
Compatible Materials
Our twin screw barrels are suitable for processing:
- PP
- PE
- HDPE
- LDPE
- LLDPE
- PVC
- ABS
- PS
- PA
- PET
- PBT
- PC
- TPU
- TPE
- EVA
- Engineering Plastics
- Masterbatch
- Color Masterbatch
- Calcium Carbonate Filled Compounds
- Glass Fiber Reinforced Plastics
- Wood Plastic Composite (WPC)
- Biodegradable Plastics
- Recycled Plastics
- Rubber Compounds
- Food Materials
- Chemical Materials
Performance Features
- High wear resistance for abrasive materials
- Excellent corrosion resistance
- High torque capacity
- Superior plasticizing performance
- Uniform melt quality
- Stable pressure output
- Optimized heat transfer efficiency
- Precision-machined barrel segments
- Long service life
- Easy maintenance and replacement
- Fully interchangeable with OEM standards
- Custom-designed for various extrusion processes
Applications
Suitable for:
- Plastic Compounding
- Masterbatch Production
- PVC Pipe Extrusion
- PVC Profile Extrusion
- Sheet & Plate Extrusion
- Film Extrusion
- Pelletizing Lines
- Engineering Plastics
- Recycling Systems
- WPC Production
- Cable Compounds
- Food Extrusion
- Chemical Processing
Compatible Machine Brands
Our twin screw barrels are compatible with most leading extrusion equipment, including:
- Coperion
- KraussMaffei Berstorff
- Leistritz
- JSW
- Toshiba
- CPM
- STEER
- USEON
- Nanjing Giant
- Jieya
- Other OEM and custom twin screw extruders
Quality Control
Every twin screw barrel undergoes strict inspection before shipment.
| Inspection Item | Standard |
|---|---|
| Material Certification | 100% Verified |
| Chemical Composition Test | ✔ |
| Hardness Test | ✔ |
| Ultrasonic Inspection | ✔ |
| Heat Treatment Inspection | ✔ |
| Dimensional Inspection | ✔ |
| Straightness Inspection | ✔ |
| Surface Roughness Inspection | ✔ |
| Pressure Test (if applicable) | ✔ |
| Final Quality Inspection | ✔ |
Custom Manufacturing Services
We offer complete OEM and ODM solutions, including:
- Custom barrel dimensions
- High-torque barrel design
- Segmented barrel manufacturing
- Bimetallic liners
- Special alloy materials
- Wear-resistant coatings
- Corrosion-resistant designs
- Customized heating and cooling systems
- Reverse engineering from samples or drawings
Why Choose Our Twin Screw Barrels?
- Precision CNC machining for high dimensional accuracy
- Premium alloy materials for extended service life
- Excellent resistance to wear, corrosion, and high temperatures
- Compatible with most global twin screw extruder brands
- OEM replacement and custom manufacturing available
- Strict quality control and full traceability
- Fast delivery and worldwide technical support