Single Screw Extrusion Machine Introduction

Extruder is mainly used to process PP, PE, PPR, ABS and other plastics. The single screw extruder can be used for extruding thermoplastics such as soft hard polyvinyl chloride (PVC) and polyethylene (PE) etc. Coordinated with the appropriate auxiliary machines, it can produce many kinds of plastic products such as pipe, profile, sheet as well as granules.

Single Screw Extrusion Machine Overview

Single Screw Extrusion Machine Plastic Extrusion Process

plastic materials are gravity fed from a hopper into a jacketed screw.
As the screw turns about its axis, it transports, melts, and pressurizes the plastic.
From the metering section, the plastic enters the front flange of the die, which is bolted onto the end of the extruder barrel.
It flows around the mandrel, suspended in the center of the channel.
At the rear of the mandrel, a pin and a land size the product.
When the product leaves the die, it enters a vacuum chamber where it is pulled through sizing rings. The combination of vacuum pulling and air pressure forces the plastic to conform to the shape of the rings. The vacuum chamber is water-filled, which cools the plastic into a hard solid.
The cooled product is then pulled by haul-off unit and is cut to length or coiled up.

Single Screw Extrusion Machine Characteristics

1. It is suitable for various polyolefin materials: HDPE, PPR, PP, ABS etc.
2. It adopts advanced computer module control system to realize the automatic control of the whole line and results in high output, good plasticization and wide applications.  3.Excellent temperature control system to ensure the stability of the producing processDesign of compulsively water-cooling and feeding grooved sleeve ensures steady and even production.
4. High-performance driving system; Wearable and easy to maintain.
5. It has advantages of high capacity in plasticizing, low noise, low power consumption, smooth operation, large loading, long use-life and so on.

Single Screw Extrusion Machine Technical Parameters

Single Screw Extrusion Machine Application

1.Pipe extrusion: PPR pipe, PE gas pipe, PEX cross-linked pipe, ABS pipe, PVC pipe, HDPE silicon core pipe and a variety of co-extruded composite pipe
2.Sheet and profile extrusion: adjust the extrusion speed and change the screw structure to be suitable for manufacturing PVC/PET/PS/PP/PC profiles and sheet etc.
3.Modified granulation: all kinds of plastic blending, modifying and enhancing granulation

Overview

Technical Parameters