English ![]()
| Quantity: | |
|---|---|
Product Description
A Conical Twin Screw Extruder is a high-performance plastic extrusion machine specially designed for processing PVC materials and other heat-sensitive polymers. Equipped with intermeshing conical twin screws, this extruder delivers efficient material conveying, uniform mixing, and precise plasticization while reducing excessive shear stress and thermal degradation.
Compared with traditional parallel twin screw extruders, the conical twin screw extruder provides better melt stability, lower energy consumption, and consistent extrusion output, making it an ideal solution for manufacturing PVC pipes, PVC profiles, PVC sheets, WPC profiles, and other plastic extrusion products.
The optimized screw design ensures excellent material homogenization, stable pressure control, and smooth melt flow during the extrusion process. It is widely used in PVC extrusion production lines where high production efficiency, reliable operation, and superior product quality are required.
With advantages such as energy-saving operation, high torque transmission, long service life, and easy maintenance, the conical twin screw extruder has become a key component for modern plastic extrusion manufacturers worldwide.
Our Conical Twin Screw Extruder is specially designed for processing both rigid PVC and flexible PVC formulations, providing reliable performance in demanding extrusion applications. The optimized conical screw structure improves material conveying efficiency, ensures uniform plasticization, and minimizes the risk of thermal degradation during processing.
Through precise screw design and stable melting control, the extruder maintains consistent output performance, with output fluctuation controlled within ±1.5%. This stability helps manufacturers achieve uniform quality in a wide range of PVC extrusion products, including PVC profiles, pipes, sheets, and other plastic components.
Designed for industrial continuous production, our PVC Twin Screw Extruder features a heavy-duty gearbox and optimized screw geometry to provide high torque transmission and efficient material mixing.
The low-speed, high-torque operating principle enables effective kneading and plasticization while reducing excessive shear stress on heat-sensitive PVC materials. Compared with conventional extrusion designs, the machine can reduce specific energy consumption by 15-20%, helping manufacturers lower operating costs while maintaining stable production capacity.
The fully intermeshing screw configuration provides excellent self-cleaning performance during extrusion. The optimized screw engagement reduces material retention inside the barrel and minimizes contamination risks when changing colors or formulations.
In practical production environments, complete material purging and changeover can typically be completed within 20-30 minutes, allowing manufacturers to improve production flexibility, reduce material waste, and shorten downtime between production batches.
Built for continuous industrial extrusion applications, our conical twin screw extruder uses nitrided alloy steel barrels and wear-resistant bi-metallic screw elements to improve wear resistance and extend service life.
The reinforced screw and barrel design ensures reliable operation under demanding PVC processing conditions. When processing standard PVC compounds, the expected service life of key screw and barrel components can exceed 8 years, providing manufacturers with improved equipment reliability, reduced maintenance frequency, and better long-term return on investment.
PVC processing requires accurate temperature management to prevent material degradation and maintain product performance. Our extruder is equipped with multiple independent barrel heating zones, closed-loop temperature control systems, and optimized cooling systems to ensure precise thermal management throughout the extrusion process.
The advanced temperature control system maintains temperature uniformity within ±1°C, which is essential for processing heat-sensitive materials and achieving consistent melt quality, surface finish, and mechanical properties in final PVC products.
The Conical Twin Screw Extruder is widely used in PVC pipe extrusion production lines for manufacturing various rigid PVC pipes, including water supply pipes, drainage pipes, electrical conduit pipes, and industrial piping systems.
PVC materials are highly sensitive to processing temperature and shear force. The optimized conical screw design provides efficient conveying, uniform plasticization, and gentle material processing, helping prevent PVC degradation during extrusion.
With stable output control within ±1.5%, the extruder ensures consistent pipe dimensions, smooth surface quality, and reliable mechanical performance. Combined with precise temperature control within ±1°C, it provides an ideal solution for manufacturers requiring long-term continuous PVC pipe production.
PVC water supply pipes
PVC drainage pipes
PVC electrical conduit pipes
Industrial PVC pipes
The Conical Twin Screw Extruder Machine plays an important role in PVC profile manufacturing, especially for window frames, door profiles, decorative profiles, and construction materials.
PVC profiles often require excellent surface finish, dimensional accuracy, and long-term weather resistance. The high torque screw system provides stable melting and mixing performance, ensuring uniform material distribution and reducing defects caused by poor plasticization.
The energy-efficient extrusion process reduces material waste and improves production consistency, making it suitable for manufacturers producing high-quality PVC profiles for residential and commercial construction projects.
PVC window profiles
PVC door profiles
Decorative PVC profiles
Building material profiles
For PVC sheets, panels, and boards, material uniformity and precise temperature management are critical factors affecting final product performance.
The Conical Twin Screw Extruder provides excellent mixing and plasticization capabilities, ensuring stable melt flow and consistent material properties during sheet extrusion. The advanced temperature control system maintains thermal stability, which helps improve surface appearance and reduce production defects.
This makes the equipment suitable for producing PVC sheets and panels used in construction, decoration, and industrial applications.
PVC foam boards
PVC decorative panels
PVC wall panels
Industrial PVC sheets
The Conical Twin Screw Extruder is also widely applied in Wood Plastic Composite (WPC) extrusion, where stable mixing performance is essential for processing wood powder, polymers, and additives.
The high torque and optimized screw structure provide strong mixing capability while maintaining gentle processing conditions. This helps achieve uniform distribution of wood fibers and plastic materials, resulting in better product strength, appearance, and durability.
For manufacturers producing outdoor decking, fencing, wall panels, and decorative profiles, the conical twin screw extruder provides a reliable extrusion solution.
WPC decking profiles
WPC fencing
WPC wall panels
Outdoor composite products
In PVC compound processing, achieving uniform mixing between PVC resin, stabilizers, fillers, plasticizers, and other additives is essential for final product quality.
The intermeshing conical twin screw design delivers excellent mixing, kneading, and self-cleaning performance. It reduces material retention during production and allows faster material changeover, typically achieving complete purging within 20-30 minutes.
This makes the extruder suitable for manufacturers requiring flexible production of different PVC formulations and customized material solutions.
Rigid PVC compounds
Flexible PVC materials
Modified PVC formulations
Plastic granulation materials
A Conical Twin Screw Extruder is a specialized plastic extrusion machine designed for processing PVC and other heat-sensitive materials. It uses two intermeshing conical screws with gradually changing diameters to achieve efficient conveying, uniform mixing, and stable plasticization.
Compared with conventional extrusion equipment, the conical screw design provides better material compression, lower shear stress, and improved thermal control, making it especially suitable for manufacturing PVC pipes, PVC profiles, PVC sheets, and WPC products.
The Conical Twin Screw Extruder Machine is mainly used for processing PVC-based materials, including:
Rigid PVC compounds
Flexible PVC formulations
PVC resin with additives
PVC filled materials
Wood Plastic Composite (WPC) materials
It is widely applied in industries requiring stable processing of heat-sensitive materials, where precise temperature control and uniform plasticization are critical.
A conical twin screw extruder is commonly used in various plastic extrusion applications, including:
PVC Pipe Production
Used for manufacturing:
PVC water supply pipes
PVC drainage pipes
Electrical conduit pipes
Industrial PVC pipes
PVC Profile Production
Used for:
PVC window profiles
PVC door profiles
Decorative profiles
Construction profiles
PVC Sheet and Panel Production
Used for:
PVC foam boards
PVC wall panels
Decorative sheets
WPC Profile Production
Used for:
WPC decking
WPC fencing
Outdoor composite profiles
Compared with a single screw extruder, a Conical Twin Screw Extruder provides better mixing and plasticization performance.
Key advantages include:
More uniform material mixing
Better processing capability for PVC formulations
Lower risk of material degradation
More stable extrusion output
Higher adaptability for filled and modified materials
These advantages make twin screw extrusion technology a preferred solution for manufacturers producing high-quality PVC products.
The optimized screw structure and precise extrusion control system help maintain stable production performance.
For standard PVC processing applications, the output fluctuation can be controlled within ±1.5%, helping manufacturers achieve consistent product dimensions, surface quality, and mechanical properties.
Stable output is especially important for continuous production of PVC pipes, profiles, and sheets.
Yes. The machine adopts a high-torque, low-speed operating design, which improves mixing efficiency while reducing unnecessary energy consumption.
Compared with conventional extrusion designs, the optimized screw geometry and transmission system can reduce specific energy consumption by 15-20%, helping manufacturers lower long-term production costs while maintaining reliable output.
The fully intermeshing screw design provides excellent self-cleaning performance, reducing material retention inside the barrel.
During practical production, complete material purging and changeover can typically be completed within 20-30 minutes, depending on material formulation and production conditions.
This helps manufacturers reduce downtime and improve production flexibility.
The Conical Twin Screw Extruder is manufactured with durable components, including:
Nitrided alloy steel barrels
Wear-resistant bi-metallic screw elements
Heavy-duty transmission systems
When processing standard PVC compounds under normal operating conditions, the expected service life of screws and barrels can exceed 8 years, reducing maintenance frequency and improving equipment return on investment.
PVC is sensitive to excessive heat, so accurate temperature management is essential.
The extruder is equipped with:
Multiple independent barrel heating zones
Closed-loop temperature control
Calibrated cooling systems
The system maintains temperature uniformity within ±1°C, helping prevent PVC degradation and ensuring consistent melt quality and final product performance.
The correct extruder model depends on several factors:
Type of material (PVC, WPC, modified compounds)
Final product size and application
Required production capacity
Screw diameter and motor power
Production automation requirements
Before selecting equipment, manufacturers should evaluate their product specifications, production targets, and future expansion plans to ensure the extruder matches their long-term needs.
