Polestar Machinery

01 SJZ51/105 CONICAL TWIN SCREW EXTRUDER

SJZ51/105 Conical
Twin Screw Extruder

Conical twin screw extruder for PVC-U pipe and profile production with stable plasticization and precise speed control.

PVC powder or pellets, 18.5kW main motor, ABB inverter, SIEMENS electrical parts and 80-120 kg/h output.

02

Product Details

SJZ51/105 Conical Twin Screw Extruder is designed for PVC-U pipe and PVC-U profile production using PVC powder or PVC pellets. The conical twin-screw structure provides strong mixing, stable plasticization and reliable output for rigid PVC processing, while ABB inverter speed control and SIEMENS key electrical parts support precise operation and low failure rate.

Materials to be processed

PVC Powder
PVC Pellets
PVC powder / pelletsRaw Material
80-120 KG/HrOutput Capacity
SJZ51/105Extruder Model
18.5 KWMain Motor
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Applications

PVC-U Pipe Production
PVC-U Profile Production
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Core Advantages

01

Flexible PVC-U Production

Stable output supports efficient continuous production.

02

PVC-specialized Twin Screw Design

Optimized screw design improves plasticizing stability.

03

Stable 80-120 KG/H Output

Stable output supports efficient continuous production.

04

ABB Inverter Speed Control

Reliable drive control keeps operation stable.

05

SIEMENS Key Electrical Parts

PLC touch control simplifies operation and monitoring.

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Independent Vacuum Exhaust

Reliable drive control keeps operation stable.

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Equipment Details

Conical Screw Barrel
Feeding And Vacuum Venting
Electrical Control Detail
Extruder Drive Detail
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The Production Line Consists Of

SJZ51/105 Conical Twin-screw Extruder

The main extruder uses a conical twin-screw structure for PVC powder and pellet processing, providing balanced plasticization and stable output.

ABB Inverter Main Drive

The ABB inverter controls screw speed smoothly, reduces startup impact and helps maintain stable extrusion pressure during continuous production.

SIEMENS Electrical Components

AC contactors, push-buttons and indicator lights use SIEMENS parts to reduce failure rate and simplify electrical maintenance.

Vacuum Exhaust Unit

The independent vacuum exhaust system removes moisture and volatile matter from PVC material to avoid bubbles and improve finished product surface quality.

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Technical Parameters

Extruder ModelMain Motor PowerFeeding Motor PowerExhaust Motor PowerMax. Rotating SpeedMax. Output
SJZ51/10518.5 KW0.75 KW1.5 KW38 RPM80~120 kg/h
SJZ55/11022 KW0.75 KW2.2 KW40 RPM150~180 kg/h
SJZ65/13237 KW0.75 KW2.2 KW38 RPM200~250 kg/h
SJZ80/15655 KW1.1 KW2.2 KW34.7 RPM350~450 kg/h
SJZ92/188110 KW1.5 KW4.0 KW36 RPM600~650 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 the output capacity of SJZ51/105 conical twin screw extruder?

Stable output ranges from 80-120 kg/h. Actual output depends on PVC formula, product type and mould.

Q2: What is the maximum screw speed?

Rated working speed is 38 RPM, and the speed is adjustable through ABB inverter control.

Q3: Can this machine process both PVC powder and PVC pellets?

Yes. It supports both PVC powder and PVC pellets, suitable for PVC-U pipe and profile production.

Q4: What is the power configuration of the extruder?

Main motor is 18.5KW, feeding motor is 0.75KW, and vacuum exhaust motor is 1.5KW.

Q5: Which brand inverter do you adopt?

The main drive adopts ABB inverter to control screw rotating speed smoothly and precisely.

Q6: What brand are the electrical contactors, buttons and signal lights?

AC contactors, push buttons and indicator lights use SIEMENS brand components.

Q7: Does the machine equip vacuum venting system?

Yes. It is equipped with an independent vacuum exhaust unit to remove moisture and volatile matter and avoid bubbles on finished products.