Sjsz Series Twin Screw Extruder

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Sjsz Series Twin Screw Extruder

Sjsz Series Twin Screw Extruder

  • High-Efficiency Conical Twin Screws – Ensures superior plasticizing and uniform melt.

  • Built-In Vacuum Deaeration – Delivers bubble-free, high-quality extrudate.

  • Premium 38CrMoAlA Alloy – Twice-aged, nitrided screws and barrel for exceptional wear resistance.

  • Flexible Capacity (80–600 kg/h) – Four models to match varied production needs.

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Product Introduction

The SJSZ Series Conical Twin-Screw Extruder is engineered for continuous, high-quality extrusion of PVC pipes and profiles. Its conical twin screws (38CrMoAlA forged, tempered & nitrided) quantitatively feed, compress, plasticize and vacuum-degas material before molding—ensuring uniform melt, superior throughput and long service life.

Applications

  • Pipe Extrusion: PVC and PP-R water/drainage conduits

  • Profile, Panel & Sheet Extrusion: PVC, PET, PC, PP, PS profiles and flat sheets

  • Modified Pelletizing: Direct powder forming, masterbatch compounding, recycled resin pelletizing

Item\Spec. SJSZ-51/105 SJSZ-65/132 SJSZ-80/156 SJSZ-92/188
Screw diameter(mm) 51/105 65/132 80/156 92/188
Screw quantity 2 2 2 2
Screw rotating direction Different direction facing outside
Rotational speed of screw(r/min) 1-30 1-34.7 1-36.9 1-32.9
Valid working length (mm) 1200 1440 1800 2500
Motor power(kw) 22 37 55 90
Barrel heating power(kw) 18 24 36 86.8
Capacity (kg/h) 80-140 250-300 320-450 500-600
Machine central height(mm) 1000 1000 1000 1200
Net weight(kg) 3500 4000 5000 10000
Dimension(L*W*H)(mm) 3620*1050*2157 4235*1520*2450 4750*1550*2460 6725*1550*2814

 

Key Advantages & Features

  1. Conical Twin-Screw Design – High shear & gentle mixing for excellent plasticization and product consistency.

  2. Vacuum Deaeration & Temperature Control – Built-in vacuum exhaust and self-temperature regulation for bubble-free, stable melt.

  3. Robust Construction – Screws & barrel made of premium 38CrMoAlA alloy, twice-aged and nitrided for exceptional wear resistance.

  4. Measurable Feeding System – Precision metering feed screw for accurate dosing and continuous operation.

  5. Flexible Throughput – Capacities from 80–600 kg/h across four models (51/105 to 92/188 mm), with rotational speeds up to 36.9 r/min.

  6. Integrated Electro-Control – PLC-driven heating zones, inverter drives and safety interlocks for turnkey production lines.

 

FAQ

Q1: What materials are compatible?
A1: Primarily PVC and PP-R, but also PET, PC, PS and other thermoplastics in pellet or powder form.

Q2: How do I select the right model?
A2: Choose based on required output (80–600 kg/h) and screw size (51/105–92/188 mm). Contact us for a detailed sizing consultation.

Q3: Can I integrate downstream pelletizers?
A3: Yes—our SJSZ extruders are designed for seamless connection to pelletizers, cooling tanks and post-processing units.

Q4: What control systems are used?
A4: Standard PLC with ABB inverters, digital temperature controllers and safety interlocks; customizable to your line specs.

Request A Quote
Send us a message if you have any questions or request a quote. Our experts will give you a reply within 24 hours and help you select the right machine you want.
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