PVC Twin Screw Extruder
PVC Twin Screw Extruder

PVC Twin Screw Extruder

The PVC Twin Screw Extruder is a high-performance extrusion machine designed for PVC compounding, plasticization, mixing, and continuous extrusion. It is suitable for processing rigid PVC, flexible PVC, filled PVC, recycled PVC, and various PVC formulations used in pipes, profiles, sheets, cables, tubing, and other plastic products.
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PVC Twin Screw Extruder Product Introduction
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1. Output Capacity

The machine is engineered for continuous high-output operation with stable feeding and uniform plasticisation.
* Adjustable capacity range based on screw diameter and L/D ratio
* Stable continuous extrusion reduces downtime and material fluctuation
* Optimized throughput improves overall production efficiency and investment return
Maintains consistent output even under high filler or recycled PVC content, reducing batch variation and improving line stability.

2. Plasticisation, Mixing & Product Quality

The co-rotating twin screw system is designed for efficient mixing, dispersion, and thermal control.
* Modular screw elements allow flexible configuration for different PVC formulations
* High-shear and low-shear zones ensure balanced melting and mixing
* Enhanced dispersion of additives, fillers, and stabilizers
* Reduced shear overheating risk, protecting PVC from degradation
Improves melt homogeneity, surface finish, and mechanical consistency of final PVC products such as profiles, pipes, and compounds.

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3. Wide PVC Application Range

The system is suitable for a broad range of rigid and flexible PVC formulations:
* Rigid PVC: pipes, profiles, sheets, construction materials
* Flexible PVC: cables, films, soft tubing
* High-end compounds: medical tubing, transparent PVC, cable insulation materials
* Recycled PVC with stabilizer and filler modification
Allows multi-formulation processing on a single production line, reducing equipment redundancy and improving flexibility.

4. Energy Consumption

The extruder is optimized for energy-efficient operation under long-term continuous production.
* High-torque gearbox with optimized transmission efficiency
* Variable frequency drive system for adaptive energy control
* Improved thermal balance reduces unnecessary heating load
* Lower specific energy consumption compared with conventional extrusion systems
Reduces long-term operating costs while maintaining stable output and product quality consistency.

5. Intelligent Temperature Control System

PVC is sensitive to thermal degradation, requiring precise temperature management.
* Water-cooled barrel temperature control system for stable processing
* Die-cast aluminum heaters for fast and uniform heating
* Auxiliary air cooling system to prevent overheating
* Maintains stable low-temperature plasticisation window
Minimizes yellowing, burning, and degradation issues, ensuring consistent product appearance and performance.

6. Drive & Torque System

* High-torque gearbox designed for high-viscosity PVC melts
* Stable transmission for continuous compounding load
* VFD or DC motor drive options for flexible production control
* Smooth torque delivery reduces mechanical fluctuation
Ensures stable extrusion pressure, improved mixing consistency, and reliable long-term operation.

Conclusion
The PVC twin screw extruder provides a complete solution for high-stability PVC compounding and extrusion. With optimized screw design, intelligent temperature control, strong torque output, and broad material adaptability, it delivers:
* Higher production efficiency
* Improved product consistency
* Lower energy consumption
* Stable processing of multiple PVC formulations

 

TSB Parameters of the double-screw mixing extruder

 

Model

Type

Nominal diameter
D(mm)

Draw ratio
(L:D)

Main motor power
(KW)

Screw speed
(rpm)

Maximum torque of single shaft
(N.m/Shaft)

Maximum torque class
(T/A³)

Reference yield
(kg/h)

TSB

20

20

36-66

3-5.5

300-800

20

6

0.5-5

26

25

36-66

7.5-18.5

400-900

86

6

5-30

36

36

32-68

15-30

500-800

173

6.5

10-70

40

41

32-68

22-55

400-800

252

6.5

65-150

52

52

32-68

45-90

500-800

429

6.5

135-300

65

62

32-68

90-160

500-800

860

6.5

250-660

75

72

32-68

132-250

500-800

1350

6.5

400-800

85

82

32-68

160-315

500-800

1989

6.5

600-1250

95

92

32-68

250-450

500-600

2887

6.5

840-1600

 

1

2

3

4

5

6

7

8

9

 

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