ZY SCREW - Professional Screw and Barrel Manufacturer

About ZY SCREW

A trusted manufacturer with nearly two decades of innovation, quality, and global service in screw and barrel systems.

Who We Are

Zhejiang Zhongyang Screw Manufacturing Co., Ltd is a professional and dedicated designer, manufacturer, rebuilder, and supplier of screws, barrels, and assembly parts for plastic and rubber machines. Founded in 2006, we have grown into a leading force in China’s screw and barrel industry.

With a factory area exceeding 50,000 square meters and over 200 skilled workers, we combine advanced technology with rigorous quality control to deliver reliable, high-performance components trusted by clients in more than 40 countries.

Our Philosophy

We operate on the principle of “quality oriented and service foremost.” Every product is engineered to meet the highest standards, and every customer is treated as a long-term partner. We believe in continuous improvement and innovation to serve your evolving industrial needs.

Over 200 CNC Machines

Ensuring precision and consistency in every component.

Why Choose ZY SCREW?

We combine advanced manufacturing, strict quality control, and global support to deliver unmatched value.

Advanced Manufacturing

200+ CNC machines, PTA welding, nitriding, and bimetallic casting ensure precision and durability.

Rigorous Quality Control

In-house lab with material and physical testing ensures every product meets international standards.

Global Reach

Serving clients in over 40 countries with reliable delivery and technical support.

Customer-Centric Service

From design to after-sales, we prioritize your satisfaction and long-term partnership.

Our Products

High-performance screw and barrel systems engineered for plastic extrusion, injection molding, and rubber processing.

Conical Twin Screw and Barrel

Ideal for PVC pipe and profile extrusion. High torque, excellent mixing, and wear resistance.

• Models: 65/132, 110/220
• High-precision machining
• Bimetallic options available

Parallel Twin Screw and Barrel

Used in compounding, recycling, and high-output extrusion. Modular design for flexibility.

• Modular screw elements
• Segmented barrel options
• Corrosion and wear-resistant

Planetary Screw Barrels

High-efficiency systems for rubber and thermoplastic processing with uniform melting.

• Multi-screw planetary design
• Low shear, high output
• Ideal for sensitive materials

Screw Elements & Segmented Barrel

Modular components for custom extrusion configurations and easy maintenance.

• Interchangeable screw elements
• Replaceable barrel segments
• Reduced downtime

Bimetallic Screw and Barrel

Enhanced wear and corrosion resistance with bimetallic alloy lining for long service life.

• Plasma Transferred Arc (PTA) welding
• High hardness surface layer
• Suitable for abrasive materials

Single Screw Barrel for Extruder

Robust design for general-purpose extrusion with high efficiency and reliability.

• Precision-ground threads
• Heat-treated core
• Custom lengths and diameters

IMM Single Screw Barrel

Designed for injection molding machines with high pressure and precision requirements.

• High tensile strength
• Wear-resistant surface
• Optimized compression ratio

Screw and Barrel for Rubber Machine

Engineered for rubber processing with excellent thermal stability and mixing performance.

• Low shear design
• Corrosion-resistant alloys
• Custom configurations

View All Products

Integrated Manufacturing Facility

Over 50,000 m² of advanced production space equipped with cutting-edge technology and quality assurance systems.

State-of-the-Art Production

235+ Professional Machines: Including CNC lathes, grinders, and milling centers for precision finishing.
Computer-Controlled Nitriding: Enhances surface hardness and wear resistance.
Bimetallic Casting Workshop: Specialized in PTA welding for long-lasting bimetallic layers.
Heat Treatment & Quenching: Ensures optimal core strength and dimensional stability.
In-House Laboratory: Full material and quality testing to guarantee performance and reliability.

Every stage of production is monitored with precise inspections, ensuring consistent quality across all batches.

Frequently Asked Questions

What materials are used in your screws and barrels?

We use high-grade alloy steels such as 38CrMoAlA, 42CrMo, and bimetallic composites with tungsten carbide or iron-based alloys for enhanced wear and corrosion resistance.

Do you offer custom designs?

Yes, we provide full OEM/ODM services. Our engineering team can design and manufacture screw and barrel systems based on your machine specifications and processing requirements.

What is the typical lead time?

Standard products: 15–25 days. Custom orders: 30–45 days, depending on complexity. We offer expedited options upon request.

How do you ensure product quality?

We conduct strict inspections at every stage—from raw material testing to final assembly—using advanced metrology equipment and in-house lab analysis.

Do you provide technical support?

Yes, our technical team offers installation guidance, troubleshooting, and maintenance recommendations to ensure optimal performance.

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Precision Screw & Barrel Systems for Industrial Excellence