When manufacturers search for “screw and barrel for extruder”, they are usually facing production challenges—low output, unstable pressure, poor plasticizing, high wear, or the need to upgrade materials. Choosing the right screw and barrel is critical for improving product quality and machine performance.

At Zhoushan Juyuan Machinery Co., Ltd., we specialize in designing and manufacturing high-precision screw & barrel systems for plastic extrusion machines, including PVC, PE, PP, PET, WPC, and high-glass-fiber applications. With more than 20 years of industry experience and advanced CNC equipment, we deliver reliable solutions to customers around the world.

What Is a Screw and Barrel for Extruder?

The screw and barrel are the core components of any extruder. Their job is to:

• Convey and melt materials
• Mix additives evenly
• Build pressure
• Form a stable output

A well-designed screw and barrel significantly increases production efficiency and reduces energy consumption.

Types of Extruder Screws and Barrels We Supply

1. Single Screw & Barrel

Used for PE/PP pipes, profiles, pellets, films, etc.
Features: high output, stable extrusion, durable nitrided or bimetallic construction.

2. Conical Twin Screw & Barrel

Ideal for PVC pipes, profiles, and panels.
Advantages: strong torque, good plasticizing, robust structure.

3. Parallel Twin Screw & Barrel

Used for high output PVC extrusion and WPC products.
Available with bimetallic liners for long service life.

4. Customized Screws

For special materials such as:

• 30–50% fiberglass
• PETG
• TPU
• Recycled materials
  We design mixing sections, compression ratios, and flights according to your process.

Why Juyuan Machinery Is Your Best Partner

✔ Advanced Materials

We offer:

• 38CrMoAlA nitrided steel
• Hardened bimetallic alloy liners
• Tool steel options (DC53, SKD61)

These ensure excellent wear and corrosion resistance.

✔ Precision Manufacturing

Our workshop includes:

• CNC milling machines
• Deep-hole boring machines
• Automatic nitriding furnaces
• PTA bimetallic alloy welding

Every screw undergoes dynamic balance testing to ensure smooth operation.

✔ OEM Replacement for Major Brands

We can manufacture replacement parts for brands such as:
KraussMaffei, Coperion, Cincinnati, Davis-Standard, Amut, Haitian, and many more.

✔ Fast Response & Global Shipping

Whether you provide drawings or only a machine nameplate, we can produce accurate replacement parts and ship worldwide with FOB / CIF / DDP terms.

Internal Link (SEO Optimization)

Learn more about our full screw & barrel range:
👉 https://juyuan-machinery.com/

Buying Intent Behind “Screw and Barrel for Extruder”

Customers searching this keyword typically want to:

1. Replace worn screw and barrel components

Wear causes low output, black spots, unstable pressure—buying a new set restores machine efficiency.

2. Improve production quality

Upgrading to a bimetallic barrel or optimized screw design reduces defects and improves melt uniformity.

3. Adapt to new materials

Different materials require different compression ratios, mixing sections, and flight designs.

4. Find a reliable long-term supplier

Clients want stable quality, clear communication, and fast delivery—exactly what Juyuan Machinery provides.

Contact Us for a Free Quotation

If you need a screw and barrel for extruder, we provide fast, accurate solutions with competitive pricing.

📞 WhatsApp: +86 13905808474

📧 Email: cxj.job@gmail.com

🌐 Website: https://juyuan-machinery.com/

Send your drawing or measurement photos—we will quote within 12 hours.