Optimized SJ45/33 Screw Configuration
Optimized screw design improves plasticizing stability.
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Product Details
SJ45/33 Single Screw Extruder is designed for PE and PP extrusion applications requiring stable melt pressure, precise wall thickness control and efficient plasticization. The 33:1 long L/D barrier screw supports superior homogenization for virgin and recycled PP/PE materials.
Materials to be processed
PP / PE materialRaw Material
60-100 KG/HrOutput Capacity
SJ45/33Extruder Model
30 KW SIMOMain Motor
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Core Advantages
Reliable Driving System
Reliable drive control keeps operation stable.
Wide Production Capacity
Stable output supports efficient continuous production.
Siemens PLC Control
Stable output supports efficient continuous production.
High-Grade Electrical Components
Reliable drive control keeps operation stable.
Consistent Product Quality
Optimized screw design improves plasticizing stability.
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The Production Line Consists Of
Single Screw Extruder
The SJ45/33 features a single screw design known for simple, effective melting and mixing. The 45mm screw diameter and 33:1 L/D ratio provide excellent processing capability for a wide range of polymers.
Vacuum Loader
The integrated vacuum loader system conveys raw materials from storage bins to the extruder hopper efficiently, reducing manual handling and helping keep material feeding clean and consistent.
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Technical Parameters
| Extruder Model | Main Motor Power | Barrel Heating Power | Max. Rotating Speed | Max. Output |
|---|---|---|---|---|
| SJ45/33 | 30 KW | 12 KW | 118 RPM | 60~100 KG/H |
| SJ50/33 | 37 KW | 15 KW | 118 RPM | 80~120 KG/H |
| SJ60/33 | 55 KW | 14 KW | 130 RPM | 100~200 KG/H |
| SJ60/38 | 75 KW | 19 KW | 148 RPM | 180~300 KG/H |
| SJ65/33 | 55 KW | 20 KW | 150 RPM | 180~220 KG/H |
| SJ75/36 | 132 KW | 35 KW | 150 RPM | 350~450 KG/H |
| SJ75/38 | 160 KW | 35 KW | 165 RPM | 350~450 KG/H |
| SJ90/33 | 185 KW | 40 KW | 120 RPM | 450~550 KG/H |
| SJ90/38 | 250 KW | 40 KW | 165 RPM | 800~900 KG/H |
| SJ120/38 | 355 KW | 72 KW | 165 RPM | 1200~1400 KG/H |
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Factory Strength
20+Years Experience
20MAnnual Sales
72hPre-delivery Test
CE & ISOCertified Machines
Integrated factory and exporter with independent R&D, mould machining, complete machine inspection, and overseas commissioning support.
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Delivery & Container Loading
Polestar Machinery arranges machine packing, container loading checks, and export delivery coordination for plastic extrusion lines and auxiliary equipment.
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Customer Projects
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Frequently Asked Questions
Q1: What is your extruder model for PE and PP pipe production?
Our model is SJ45/33 single screw extruder, equipped with a 33:1 L/D barrier screw for excellent homogenization of PE and PP.
Q2: What is the production capacity of the SJ45/33 extruder?
Designed output range is 60-100 kg/h, with stable melt pressure to support precise wall thickness control.
Q3: What is the screw and barrel material?
Screw and barrel use nitrided 38CrMoAl material for long service life. The machine is suitable for filled PE containing carbon black, virgin PP/PE and recycled PP/PE raw materials.
Q4: What is the main motor and drive configuration?
The machine uses a 30kW SIMO main motor with high torque hard surface gearbox and ABB inverter.
Q5: What control system does this machine use?
It adopts a Siemens PLC touch screen control system. Optional IoT remote monitoring can also be configured.
Q6: Can this machine run recycled plastic materials?
Yes. It is compatible with both virgin PP/PE and recycled PP/PE, helping reduce overall production cost.