Extruder Twin Screw
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Extruder Twin Screw

As the core component of your extrusion line, our Parallel Twin Screw & Barrel set is designed for versatile and efficient processing. It balances powerful shear input with controlled thermal management, making it a reliable workhorse for a broad spectrum of thermoplastic applications beyond PVC, including compounding and pelletizing.
Screw Diameter: Φ20 – Φ330 mm
L/D Ratio :16:1 – 35:1
Surface RoughnessRa :0.4 μm
Linearity: 0.015 mm/m
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Product Introduction

Zhejiang Zhongyang Screw Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of extruder twin screw in China. With abundant experience, we warmly welcome you to buy durable extruder twin screw from our factory. All customized products are with high quality and competitive price.

 

extruder twin screw 1

Product Introduction

 

As the core component of your extrusion line, our Parallel Twin Screw & Barrel set is designed for versatile and efficient processing. It balances powerful shear input with controlled thermal management, making it a reliable workhorse for a broad spectrum of thermoplastic applications beyond PVC, including compounding and pelletizing.

Product Description

 

This parallel twin screw and barrel unit serves as the fundamental processing engine for modern extruders. Its co-rotating screw design delivers a balanced combination of efficient conveying, intense shear mixing, and effective heat transfer. This versatility makes it suitable not only for direct extrusion but also for masterbatch preparation and polymer modification.

The modular barrel design incorporates multiple zones for feeding, mixing, venting, and metering, providing exceptional process flexibility. Engineers can customize screw elements and sequences to achieve specific shear profiles, residence time distributions, and mixing intensities required for different materials. Constructed from high-grade alloys with optional bimetallic liners, the system is built to endure prolonged operation. Its precision-ground components ensure tight tolerances, reliable sealing, and stable operation, forming a solid foundation for building a high-performance, customizable extrusion line tailored to complex material formulations.

extruder twin screw 2

 

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Our Advantages
  1. Versatile Processing Core: Adaptable design suitable for a wide range of tasks from compounding to direct shaping.
  2. Intensive & Controlled Mixing: Provides high shear efficiency for thorough homogenization and dispersion of additives.
  3. Modular System Flexibility: Customizable screw and barrel configuration enables tailored solutions for specific process needs.
  4. Durable Construction: Precision manufacturing with premium materials ensures long-term reliability and consistent performance.

 

Technical data

 

 

Parameter

Specification

Screw Diameter

Φ20 – Φ330 mm

L/D Ratio

16:1 – 35:1

Materials (Screw/Barrel Base)

38CrMoAlA (SACM645)
31CrMoV9 (1.8519)
34CrAlNi7 (1.8550)

Materials (Alloy Sleeve/Liner)

4Cr5MoSiV1 (SKD61, H13)
C2
D2

Surface Roughness

Ra 0.4 μm

Linearity

0.015 mm/m

Nitrided Hardness

HV 850 – 1000

Nitrided Depth

0.5 – 0.8 mm

Chrome Coating Thickness

0.03 – 0.05 mm

 

extruder twin screw

Application

 

As a versatile processing core, this system is designed for a broad spectrum of compounding and extrusion tasks. Its primary applications include masterbatch and color compounding, polymer blending and alloying, and direct extrusion of technical profiles. It is equally effective in wood-plastic composite (WPC) production, cable jacketing, and sheet extrusion, serving the diverse needs of the plastics, packaging, and automotive industries with reliable and adaptable performance.

 

FAQs

 

1.Q: Why should we choose your parallel twin screw system over others?

A: You gain a precision-engineered processing solution, not just standard parts. Our combination of robust material science, deep application expertise, and flexible modular design ensures optimal performance for your specific needs. We focus on delivering maximum throughput, consistent quality, and long-term reliability, reducing your total cost of ownership.

2.Q: How do you ensure stable product quality from batch to batch?

A: Stability comes from our certified quality management system and precise manufacturing control. From raw material inspection to final testing, each step is documented and controlled, guaranteeing consistent performance and reliable output for your production line.

 

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