Screw and Barrel for Single Screw Extruder - Ensure Efficient and Stable Extrusion Performance

During the extrusion process, the screw and the barrel of a single screw extruder are regarded as the most important components, since they greatly determine the performance of the product. These components are also particularly involved in the melting, mixing, and extrusion of the plastic raw materials and thus are rather instrumental to the effectiveness and precision of the entire extrusion process. It must be understood that the importance of high quality screws and barrels cannot be overstated due to the role they play in maintaining the equilibrium and consistency of the mass flow.

The screw is the principal component of the extrusion system since it conveys, compresses, and homogenizes the material to be extruded. Its design, that includes the pitch, length, and shape of the flights is also key to the melting and mixing of the hot melting thermoplastics. A poorly designed or poorly manufactured screw causes improper melting of the material, improper mixing of the plastics, and sometimes poor final products. Hence spending on a high-performing screw does not only reduce the operational cost but also improves the end-product quality.

Screw and Barrel for Single Screw Extruder Features:

High-Precision Design: 

The screw and barrel are precision machined to ensure a perfect match with the single screw extruder, providing stable extrusion pressure and uniform material flow. We offer universal screws suitable for general thermoplastics and specialized screws for different plastics.

Optimized Zones: 

Features feed zone, compression zone, metering zone, and degassing zone with optimized ratios to enhance processing efficiency.

Wear-Resistant and Corrosion-Resistant: Made from high-quality alloy steel, chrome-plated materials, or bimetal, these components offer exceptional wear and corrosion resistance, making them suitable for the extrusion of various plastic materials and extending their service life.

Optimized Screw Geometry: 

The screw geometry is optimized to reduce energy consumption and improve production efficiency while ensuring efficient melting and mixing.

Easy Replacement and Maintenance: The modular design simplifies the replacement of the screw and barrel liner, reducing equipment downtime and ensuring continuous production.

Application Screw and Barrel for Single Screw Extruder:

Plastic Extrusion: Suitable for the extrusion of various plastics such as PE, PP, PVC, ABS, etc., ensuring efficient material processing and high-quality finished product output.

Plastic recycling: In the recycling process, the use of high-performance screws and barrel liners significantly improves production efficiency and the quality of recycled materials.

Screw and Barrel for Single Screw Extruder Specifications:

Material:

 SCM-4 High-Frequency Quenching/Hard Chrome, SACM-1/Nitriding Treatment, or SCM-4 Bimetal.

Applicable Models:

 Compatible with various models of single screw extruders.

Customized Service:

 Customized screws and barrel liners can be provided according to customer needs to adapt to specific production processes and material requirements.

Service Life: 

When the screw processes more than 10,000 tons, or when output significantly decreases, it is recommended to replace the extruder screw. Typically, the screw and the barrel liner are replaced simultaneously.

Our screws and barrel liners for single screw extruders are designed to enhance the efficiency of the extrusion process, making them ideal for improving product quality and production efficiency. For more information or customized solutions, please contact us.