This system is designed for small-scale production, experimentation, and education in polymer material applications such as filling, blending, modification, and reinforcement. It features mall batch sizes, high efficiency, low cost, and a compact footprint, making it ideal for R&D, formulation synthesis, and pre-production trials.  

Twin-Screw Compounding Extrusion Line

1. Single-Screw Feeding System 

   - Drive Motor: 0.37 kW AC motor  

2. Gear Reduction Box 

   - Reduction Ratio: 2.5:1  

3. Main Motor  

   - Power: 4 kW  

   - Max Speed: 1500 RPM  

4. Modular Screws

   - Screw Diameter: φ21.7 mm  

   - L/D Ratio: 40:1  

5. Barrel

   - Material: 38CrMoAlA nitrided steel (38-grade nitrided steel base material)  

6. Heating System

   - Six temperature-controlled zones with cast aluminum/copper heaters.  

   - Max Temperature: 260°C.  

7. Vacuum Devolatilization Unit 

8. Water Strand Pelletizing Quick-Change Die Head* 

   - Two-Hole Die: φ3.5 mm.  

9. Electrical Control System

   - Power Supply: 3×380 V, 50 Hz AC  

   - Main Motor Control: PLC-based  

   - Feeder Control: PLC-integrated  

   - Pressure Gauge Range: 0–25 MPa  

   - Electrical Control Cabinet: PLC interlocked  

10. Interlock Control System  

    - Feeder-Host Interlock: Feeder activates only after the main motor starts.  

    - Pressure-Host Interlock: Overpressure triggers shutdown of both main motor and feeder.  

    - Current-Host Interlock: Overcurrent triggers shutdown of both main motor and feeder.  

11. Pelletizing Auxiliary Equipment 

    - 1.5 m stainless steel water bath  

    - 0.37 kW vortex dryer  

    - Pelletizer  

12. Spare Parts

    - Twin-screw screw elements: 160 mm  

    - Asbestos gloves: 2 pairs  

    - Tool kit: 1 set