Single screw plastic pipe extruder production equipment
single-screw-plastic-pipe-extruder-production-equipment
This machine is mainly used for extruding thermoplastic materials such as soft and hard polyvinyl chloride, polyethylene, etc. It can be used in conjunction with corresponding auxiliary machines (including molding heads) to process various plastic products, such as films, pipes, rods, plates, wires, tapes, cable insulation layers, and hollow products. It can also be used for plastic granulation.
- chuangjia
- ezhou
- 100000 MT
- Information
single-screw-plastic-pipe-extruder-production-equipment
Working principle

The plastic extruder has undergone more than 200 years of development since its birth. Nowadays, the technology of single screw extruder is very mature. Generally, single screw extruder can be divided into three working areas according to the screw: conveying section, compression section, and metering section.
The thread behind the material mouth is called the conveying section, during which the material must not be plasticized and is important for conveying materials. Cooling devices are also installed on some large-diameter extruders to prevent material plasticization and avoid affecting material conveying speed due to material melting.
After the material passes through the conveying section, it enters the compression section. At this stage, the volume between the screw and the barrel decreases, and the temperature reaches the plasticizing temperature, causing the material to be compressed. (Shrinking from the initial volume to one-third of its original size, this is called the compression ratio of the screw 3:1)
When the material completes the plasticization operation, it will enter the measuring section and quantitatively transport the molten material to the machine head for production needs.
Product Features
Adopting Guomao extruder specialized reducer, reliable brand, stable quality, long service life.
Siemens and other brands of variable frequency motors are preferred for electric motors.
Advanced electrical control system, professional engineers equip extruder customers with humanized operation control system according to actual situations.
The single screw extruder has a simple design and is inexpensive.
Technical Parameter

Model length to diameter ratio (L/D) Production (PE, kg/h) Screw speed (rpm) Drive power (kW) Center height (mm)
SJ-2525/12-520-1200.75-2.21000
SJ-3025/15-1020-1202.2-5.51000
SJ-4525-33/150-15020-1507.5-301000
SJ-6525-33/160-25020-15022-901000
SJ-7525-33/1200-35020-15055-1101100
SJ-9025-33/1180-55020-11037-1851000-1100
SJ-12025-33/1320-80020-9075-2801000-1250
SJ-15025-33/1400-120020-7590-3551000-1300
