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Zhejiang Huamao Machinery
Precision Screw & Barrel Manufacturing

China's leading manufacturer of extruder screws, barrels, and plastic machinery components. Specializing in high-performance bimetallic, twin-screw, injection, rubber, and planetary systems for global industrial applications.

Explore Our Products

About Zhejiang Huamao Machinery

Zhejiang Huamao Machinery Co., Ltd. and Zhoushan Jinmao Machinery Factory are the largest manufacturers in China specializing in the research, design, and production of a full series of screws, barrels, and assembly parts used in various extruding, injection, and rubber processing machinery.

With decades of experience and innovation, we have established ourselves as a trusted partner for plastic and rubber processing industries across the globe. Our commitment to quality, precision engineering, and customer satisfaction drives everything we do.

20+

Years of Industry Experience

50+

Countries Served

Manufacturing Facility Screw Production Line Quality Inspection Finished Products

Our Product Range

We manufacture a comprehensive range of high-precision screw and barrel systems designed for durability, efficiency, and optimal performance in demanding industrial environments.

Extruder Screw Barrel

Extruder Screw Barrel

High-wear resistance barrels and screws for single-screw extrusion systems. Ideal for PVC, PE, PP, and other thermoplastics.

  • • Material: 38CrMoAlA, Nitrided
  • • Hardness: HV950-1100
  • • Precision tolerance: ±0.01mm
Injection Screw Barrel

Injection Screw Barrel

Designed for high-pressure injection molding machines with excellent shear mixing and melting efficiency.

  • • Material: 42CrMo, Bimetallic Liner
  • • Surface Treatment: Plasma Spray
  • • Applications: Automotive, Packaging
Rubber Screw Barrel

Rubber Screw Barrel

Engineered for rubber compounding and extrusion with low shear and high thermal stability.

  • • Low Compression Ratio Design
  • • Corrosion Resistant Coating
  • • Suitable for NR, SBR, EPDM
Conical Twin Screw Barrel

Conical Twin Screw Barrel

Self-wiping conical co-rotating twin screw systems for PVC and heat-sensitive materials.

  • • L/D Ratio: 18:1 to 26:1
  • • Modular Design
  • • High Torque Capacity
Parallel Twin Screw Barrel

Parallel Twin Screw Barrel

Versatile parallel twin-screw extruders for compounding, devolatilization, and reactive extrusion.

  • • Fully Interchangeable Elements
  • • High Output Stability
  • • Custom Configuration Available
Bimetallic Screw Barrel

Bimetallic Screw Barrel

Enhanced wear and corrosion resistance with bimetallic inner lining for extended service life.

  • • Xaloy® or Collaroy™ Alloy
  • • Bond Strength > 70 MPa
  • • Ideal for Recycled Plastics
Planetary Screw Barrel

Planetary Screw Barrel

High-efficiency planetary roller screws for ultra-fine dispersion and high-viscosity materials.

  • • Multi-Roller Mixing Action
  • • Low Energy Consumption
  • • Uniform Melting Profile
Segment Screw Barrel

Segment Screw Barrel

Modular segmented screw design for easy maintenance and customization based on process needs.

  • • Quick Disassembly
  • • Replaceable Segments
  • • Optimized for R&D Lines
Extruder and Production Line

Extruder & Production Line

Complete extrusion lines including feeding, extrusion, calibration, cooling, and winding systems.

  • • Turnkey Solutions
  • • PLC Control System
  • • CE Certified
Other Accessories

Other Accessories

Nozzles, check rings, mixing heads, breaker plates, and custom tooling for all major machine brands.

  • • OEM Replacement Parts
  • • Hardened & Polished Surfaces
  • • Fast Delivery

Our Services

From design to rebuild, we offer comprehensive support to ensure your machinery performs at peak efficiency.

Design & Research

Custom screw and barrel design using advanced simulation software for optimal performance.

Surveying & Mapping

On-site measurement and 3D scanning to ensure perfect fit and compatibility.

Rebuild & Repair

Full restoration of worn screws and barrels to like-new condition with warranty.

Equipments

State-of-the-art CNC machining, nitriding, and inspection equipment for precision manufacturing.

News & Exhibitions

Stay updated with our latest industry participation and company developments.

Chinaplas 2023

CHINAPLAS 2019

PLAST EURASIA ISTANBUL 2018

PLAST 2018

CHINAPLAS 2018

Get in Touch

For inquiries, technical support, or partnership opportunities, please visit our official website to contact us directly.

Visit Official Website

Tel: +86-580-8050975, +86-580-8058618

Fax: +86-580-8050162

Email: [email protected]

Adds: No.18, Dafeng Road, Xihou Industrial Park, Zhoushan, Zhejiang, China

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