**China SJ Single Screw Plastic Extruder (SJ)**
**Model NO.:** SJ
**Engagement System:** Full Intermeshing
**Screw Channel Structure:** Deep Screw
**Exhaust:** Yes
**Automation:** Automatic
**Computerized:** Yes
**Screw Material:** 38CrMoAl
**Hardness of Screw:** Hv900-1000
**Screw Speed:** 5-150 rpm/min
**Screw and Mold Heating Device:** Cast Aluminum/Ceramics Heater
**Cooling Type:** Fan Cooling
**Driving Motor:** Chinese Brand AC Motor
**Motor Power:** 1.1-150 kW
**Machine Center Height:** 1000 mm
**Control System:** Independent Control Box
**Color:** Optional
**Trademark:** Friend
**Transport Package:** Film Packed or Wood Case
**Specification:** CE
**Origin:** Zhangjiagang, Jiangsu, China
**HS Code:** 84778000
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**Description and Applications**
The SJ Series single screw extruder is designed to process thermoplastic materials such as PE, PP, ABS, PMMA, PC, and PA. With high-quality screws made from 38CrMoAl, advanced heating and cooling systems, and efficient auxiliary equipment, it can directly convert raw granules into pipes, sheets, films, and profiles. It also supports modification and pelletizing functions.
This machine is ideal for use in pipe or film lines, either as a standalone unit or in combination with other extruders. It’s suitable for small-scale production or as an auxiliary machine in larger manufacturing setups.
We offer customized solutions based on your specific requirements, including different screw configurations (length/diameter ratio) to optimize performance and plasticizing efficiency. Our control systems include ABB frequency converters, RKC temperature controllers, and components from OMRON and Siemens for reliable operation. The control panel can be adapted to multiple languages (English, Russian, Korean, Spanish, etc.) for user convenience.
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**Features**
- High quality and energy-efficient
- Stable performance and long service life
- Excellent design with competitive pricing
- Uses premium parts from ABB, RKC, Siemens, and OMRON
- Certified with CE and SGS
- 1-year warranty
**High quality, stable performance, and customer satisfaction are our priorities.**
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**Technical Specifications**
| **Parameter** | **Details** |
|---------------------------|---------------------------------|
| Model | SJ25 |
| Screw Ratio | 28:1 |
| Screw & Barrel Material | 38CrMoAl |
| Processing | Nitrogen Treatment |
| Driving Motor | 3 kW |
| Screw Speed Control | ABB Brand Inverter |
| Screw Heating Temperature | 0–350°C |
| Screw Cooling Method | Fan Cooling |
| Heater | Cast Aluminum Heater |
| Temperature Controller | OMRON or RKC |
| Contactors | Siemens Brand |
| Independent Control Box | Yes |
| Gearbox | Jiangyin Brand |
| Screw & Barrel Brand | Zhoushan Brand |
| Machine Color | Optional |
| Warranty Time | 1 Year |
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If you are interested in the extruder, please let us know your desired capacity, material type, or any other relevant details. We will provide professional and practical suggestions tailored to your needs.
**Machine Pictures and CE Certification**
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Let us help you find the right solution for your production line!
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