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

Product Name Single Screw Extruder
Material 38CrMoAlA, 42CrMo (JIS SCM440), SKD11,61
Diameter Φ15mm-350mm
Application Suit for cable, sheet, pipe, profile and granules
Nitride Case Depth 0.5mm-0.8mm
Nitride Hardness 1000-1100HV
Nitride Brittleness ≤Grade One
Surface Roughness Ra0.4um
Screw Straightness 0.015mm
Alloy Hardness HRC68-72
Designing Screw structure and compression ratio can be designed according to different products & different output requirement.
Technology 1) Longer time Gas Nitriding treatment
2) Special corrosion & abrasion alloy (bimetallic)
3) Tungsten carbide
4) Cobalt base alloy
5) Stainless steel
6) GH113 nickel-based alloy
Packing Wrapped up by film in wooden case
Payment Term T/T, L/C, WESTERN UNION
Delivery Term 25 working days
Port Departure Shanghai
Min. Order 1 set
Guarantee Common Nitrided:2.5-4years
Bimetallic: much longer lifetime

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

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

Single Screw Extrusion Machine Technical Parameters

Product Name Screw diameter(mm) Screw L/D Motor power(kw) output Torque (N.M) Screw speed(r/min) Max output(kg/h)
SJ25/25 25 25:1 1.5 175 100 3.4
SJ30/25 30 25:1 5.5 410 125 12.5
SJ45/25 45 25:1 7.5 580 100 20
SJ45/30A 45 30:1 15 1000 145 40
SJ45/30C 45 30:1 30 1600 185 120
SJ65/25 65 25:1 22 1500 100 60
SJ65/30 65 30:1 30 3600 105 80
SJ65/30 65 30:1 45 4800 120 120
SJ75/32 75 32:1 90 7200 120 350
SJ90/25 90 25:1 55 4400 120 150
SJ90/30 90 30:1 90 9200 94 250
SJ90/32 90 32:1 160 13000 120 500
SJ120/25 120 25:1 90 9200 94 350
SJ120/30 120 30:1 110 16000 94 350
SJ120/33 120 33:1 250 25000 94 800
SJ150/25 150 25:1 110 35000 40 320
SJ150/30 150 30:1 132 36000 50 350
SJ150/34 150 34:1 315 32000 75 1100
SJ200/25 200 25:1 160 50000 30 500
SJ200/30 200 30:1 200 60000 40 550
SJ200/34 200 34:1 400 55000 75 1500

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

 

Product Name Single Screw Extruder
Material 38CrMoAlA, 42CrMo (JIS SCM440), SKD11,61
Diameter Φ15mm-350mm
Application Suit for cable, sheet, pipe, profile and granules
Nitride Case Depth 0.5mm-0.8mm
Nitride Hardness 1000-1100HV
Nitride Brittleness ≤Grade One
Surface Roughness Ra0.4um
Screw Straightness 0.015mm
Alloy Hardness HRC68-72
Designing Screw structure and compression ratio can be designed according to different products & different output requirement.
Technology 1) Longer time Gas Nitriding treatment
2) Special corrosion & abrasion alloy (bimetallic)
3) Tungsten carbide
4) Cobalt base alloy
5) Stainless steel
6) GH113 nickel-based alloy
Packing Wrapped up by film in wooden case
Payment Term T/T, L/C, WESTERN UNION
Delivery Term 25 working days
Port Departure Shanghai
Min. Order 1 set
Guarantee Common Nitrided:2.5-4years
Bimetallic: much longer lifetime

Technical Parameters

Product Name Screw diameter(mm) Screw L/D Motor power(kw) output Torque (N.M) Screw speed(r/min) Max output(kg/h)
SJ25/25 25 25:1 1.5 175 100 3.4
SJ30/25 30 25:1 5.5 410 125 12.5
SJ45/25 45 25:1 7.5 580 100 20
SJ45/30A 45 30:1 15 1000 145 40
SJ45/30C 45 30:1 30 1600 185 120
SJ65/25 65 25:1 22 1500 100 60
SJ65/30 65 30:1 30 3600 105 80
SJ65/30 65 30:1 45 4800 120 120
SJ75/32 75 32:1 90 7200 120 350
SJ90/25 90 25:1 55 4400 120 150
SJ90/30 90 30:1 90 9200 94 250
SJ90/32 90 32:1 160 13000 120 500
SJ120/25 120 25:1 90 9200 94 350
SJ120/30 120 30:1 110 16000 94 350
SJ120/33 120 33:1 250 25000 94 800
SJ150/25 150 25:1 110 35000 40 320
SJ150/30 150 30:1 132 36000 50 350
SJ150/34 150 34:1 315 32000 75 1100
SJ200/25 200 25:1 160 50000 30 500
SJ200/30 200 30:1 200 60000 40 550
SJ200/34 200 34:1 400 55000 75 1500

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