In the field of plastic extrusion and injection molding, the screw barrel plays a decisive role in the quality and efficiency of production. Among various types, the single screw barrel is one of the most widely used configurations for plasticizing, mixing, and conveying materials. As a professional China single screw barrel manufacturer, Zhoushan Juyuan Machinery Co., Ltd. provides high-performance screw and barrel solutions that deliver precision, durability, and stable output for all types of extrusion machines.
What Is a Single Screw Barrel?
A single screw barrel consists of one rotating screw inside a cylindrical barrel. As the screw turns, plastic raw materials are heated, melted, and homogenized before being pushed through a die to form a continuous product such as pipes, sheets, or films.
This system is simple, efficient, and suitable for a wide range of polymers like PE, PP, PVC, ABS, PS, and PET. Its stable extrusion performance makes it the preferred choice for most manufacturers worldwide.
If you want to see more product details, visit our single screw barrel page.
Advantages of Juyuan’s Single Screw Barrels
As a leading China single screw barrel supplier, Juyuan Machinery focuses on precision machining, superior material quality, and customized solutions. Our single screw barrels offer several key advantages:
- High Wear Resistance
Each barrel and screw is made from high-quality alloy steel (38CrMoAlA, SACM645, SKD61, etc.) and undergoes nitriding or bimetallic treatment for long-lasting wear protection. - Excellent Corrosion Resistance
Ideal for processing corrosive materials such as PVC, fluoroplastics, and flame-retardant compounds. - Superior Mixing and Plasticizing
The screw geometry is optimized for improved melt homogeneity, ensuring better product quality and smooth extrusion. - Custom Design for Every Application
We offer complete customization according to your machine model, processing material, and output requirements. Both OEM and ODM services are available.
Applications of Single Screw Barrels
Our single screw barrels are widely used in:
- Plastic extrusion machines (pipe, profile, sheet, and film lines)
- Injection molding machines
- Recycling and granulating machines
- Blow molding equipment
No matter the application, Juyuan’s single screw barrels provide stable melt pressure, high plasticizing efficiency, and long service life, ensuring consistent output and lower maintenance costs.
You can also explore our twin screw barrels for higher mixing performance and compounding applications.
Material Options and Surface Treatments
To meet various processing requirements, we provide several material and treatment combinations:
| Material | Surface Treatment | Hardness | Features |
|---|---|---|---|
| 38CrMoAlA | Nitriding | 900–1000 HV | Cost-effective, durable |
| SKD61 / SACM645 | Nitrided + Polished | 1000 HV | High strength and precision |
| Bimetallic alloy | Centrifugal casting | 60–72 HRC | Superior wear & corrosion resistance |
The bimetallic version is particularly suitable for reinforced plastics with glass fiber, carbon fiber, or calcium carbonate fillers.
Why Choose Zhoushan Juyuan Machinery
Located in the world-famous Zhoushan Screw Barrel Industrial Zone, Juyuan Machinery has over 20 years of professional experience in manufacturing extrusion and injection machine parts.
We are proud to be recognized as a trusted China single screw barrel manufacturer thanks to:
- Advanced CNC machining centers for precision and consistency
- Strict quality control system for every production stage
- Customized designs to fit different brands like Haitian, Chen Hsong, LG, Toshiba, and more
- Global export experience, supplying to Europe, South America, and Southeast Asia
Our mission is simple: to provide reliable, durable, and efficient screw and barrel solutions that help our clients achieve better production results.
Quality Control and Inspection
Each single screw barrel undergoes strict quality inspection before shipment:
- Hardness testing to ensure consistent surface strength
- Ultrasonic flaw detection for internal structure integrity
- Thread and dimension measurement to meet customer drawings
- Trial assembly to ensure smooth fit and alignment
This ensures that every product leaving our factory meets international quality standards.
Conclusion
When you choose a China single screw barrel manufacturer, you’re not just buying a part — you’re investing in the performance and longevity of your machine. At Zhoushan Juyuan Machinery Co., Ltd., we take pride in delivering screw and barrel systems that combine precision, durability, and value.
If you are looking for high-quality single screw barrels, or need custom designs for your extrusion or injection molding machines, we’re here to support your production with professional solutions and reliable service.
📩 Contact Information
Zhoushan Juyuan Machinery Co., Ltd.
🌐 Website: https://juyuan-machinery.com/
📧 Email: cxj.job@gmail.com
📞 WhatsApp / WeChat / Phone: +86 13905808474