The 2-Cavity PVC Pipe Extrusion Line is a high-efficiency solution designed for producing two PVC pipes simultaneously on one production line. It is suitable for manufacturing electrical conduits, water supply pipes, and cable protection pipes with stable dimensions and reliable quality. Equipped with a conical twin-screw extruder and coordinated downstream units, the line helps improve output, reduce labor cost, and support continuous PVC pipe production.
Double Output: Features dual-strand die head and SJSZ extruder to double production capacity.
Warranty: 1-year warranty with full remote service (free parts, diagnosis, & online guidance).
Delivery: Standard production cycle is 2 months.
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The 2-Cavity PVC Pipe Extrusion Line is specially designed for the efficient production of small- and medium-diameter PVC pipes used in electrical conduit systems, water supply installations, and cable protection applications. The line adopts a dual-cavity extrusion structure, enabling two PVC pipes to be produced at the same time on one complete production system. This design helps manufacturers increase production capacity while making better use of workshop space, labor, and operating resources.
Compared with a traditional single-output PVC pipe line, the two-cavity configuration offers a more economical way to improve output without requiring a second independent line. For manufacturers aiming to produce conduit pipes or other standard PVC pipes in large quantities, this production method provides clear advantages in productivity and equipment utilization.
The line integrates extrusion, die forming, vacuum calibration, cooling, haul-off, cutting, and optional belling into one coordinated process. Each unit is matched to support stable continuous operation, accurate pipe sizing, and consistent final product quality. With proper machine configuration, the line can meet the needs of different PVC pipe production projects and can be adjusted according to actual pipe diameter and output requirements.
The most important advantage of this machine is its dual-output capability. By using a specially designed double-cavity die head, the line can produce two PVC pipes simultaneously, which significantly improves productivity compared with conventional single-pipe extrusion. This makes it a practical solution for factories that need higher output with controlled investment and efficient use of plant space.
The line is equipped with a conical twin-screw PVC extruder, which is widely used for rigid PVC processing. This extrusion system provides stable plasticizing performance, reliable melt pressure, and consistent material flow during long-term continuous operation. It is suitable for PVC pipe production where stable process control and uniform product quality are essential.
Another important advantage is the coordinated downstream system. The vacuum calibration tank, haul-off unit, and cutting machine work together with the extrusion system to maintain stable pipe shaping, accurate outer diameter control, and reliable production speed. This integrated configuration helps reduce dimensional fluctuation and supports smooth, efficient operation throughout the production cycle.
The line layout is also optimized for practical factory use. It supports efficient production organization, easy equipment connection, and simplified operation, making it a suitable choice for both new pipe manufacturers and established producers expanding PVC pipe output.
The conical twin-screw extruder is the core machine of the line. It is designed specifically for PVC material processing and offers stable output, efficient plasticization, and precise melt control. This ensures that the raw material is processed evenly and fed consistently into the pipe die.
The double-cavity extrusion die head allows two PVC pipes to be formed at the same time. Its internal flow channel is designed to distribute material evenly, helping maintain balanced wall thickness and stable twin-pipe extrusion.
The vacuum calibration tank is used for pipe sizing and cooling immediately after extrusion. It helps stabilize pipe dimensions, improve roundness, and ensure a smooth pipe surface during continuous production.
The haul-off machine provides stable pulling force and keeps the production speed synchronized with the extrusion process. This is important for maintaining continuous line operation and accurate pipe forming.
The cutting machine performs synchronized pipe cutting according to the preset length. It helps ensure clean pipe ends and consistent finished product dimensions.
If socket pipes are required, an optional belling machine can be added to produce smooth and uniform socket ends for different PVC pipe specifications.
The stacker is used to collect and arrange finished pipes automatically, improving post-production handling efficiency and helping keep the production area well organized.
In operation, PVC raw material is first fed into the conical twin-screw extruder, where it is heated, mixed, and plasticized into a stable melt. The molten PVC then enters the dual-cavity die head, where it is shaped into two pipes simultaneously.
After the pipes leave the die, they pass through the vacuum calibration tank for sizing and cooling. This step is essential for maintaining dimensional accuracy and forming quality. Once cooled and stabilized, the pipes are pulled forward by the haul-off unit at a controlled and steady speed. The cutting machine then cuts the pipes to the required length in synchronization with the production line. When needed, the belling machine can complete the socket-forming process before the pipes are transferred to the stacker.
This coordinated production flow helps ensure stable output, smooth pipe surfaces, accurate dimensions, and reliable line performance during continuous manufacturing.
The production line is built around a conical twin-screw extruder specifically engineered for PVC processing. The optimized screw geometry ensures efficient plasticization, stable melt pressure, and consistent material flow during continuous pipe extrusion.
The extrusion unit is combined with a dual-outlet extrusion die head, allowing two PVC pipes to be formed simultaneously with uniform wall thickness and accurate dimensional control.
After extrusion, the pipes enter a coordinated downstream system designed to stabilize pipe dimensions and maintain consistent production speed.
The system includes a vacuum calibration tank for precise pipe shaping and cooling, followed by a haul-off unit that ensures stable pulling force during continuous extrusion. A pipe cutting machine performs synchronized cutting to achieve accurate pipe length during production.
This integrated equipment configuration ensures reliable pipe forming, stable production performance, and consistent product quality.
The machine can be configured according to different pipe diameter ranges and production requirements.
| Main extruder | Pipe diameter(mm) | Total power(kw) |
| SJSZ51/105 | 16-40mm | 70kw |
| SJSZ65/132 | 16-63mm | 91kw |
| SJSZ80/156 | 63-200mm | 136kw |
Machine configuration, pipe diameter range, and auxiliary equipment can be customized according to specific production requirements, factory layout, and target output.
PVC pipes produced by the 2-Cavity PVC Pipe Extruder Production Line are widely used in construction and infrastructure projects where reliable pipe systems are required. These pipes provide good corrosion resistance, electrical insulation performance, and long service life, making them suitable for various pipeline applications.
Typical applications include:
Electrical conduit pipes for building wiring systems
Water supply pipes used in residential and commercial installations
Cable protection pipes for underground power and communication networks
Infrastructure pipeline systems used in construction projects
PVC pipes manufactured by this production line offer stable performance and durable service life, meeting the requirements of modern pipeline installation and protection systems.
IVIMA maintains stable in-house production capacity with standardized machining, assembly and testing procedures. Annual output exceeds 300 production lines, ensuring scalable delivery capability for global projects.
Our production lines have been delivered to industrial facilities worldwide, covering both extrusion and recycling applications across different markets.
Compliance documentation and machinery directive certifications are available to support international project requirements and audits.
We provide a clear service process from inquiry to delivery and long-term technical support, enabling efficient project execution and faster production start-up.
We provide one year remote warranty support, including spare parts supply, remote fault diagnosis and online technical guidance. Engineer on-site commissioning service is available when required.
Export-standard packing is applied to protect key components during sea/land transportation. Packaging methods can be optimized according to route, container loading, and destination requirements.
| Name | Size | Downloads | Update | Thumbnail | Copy Link | Download |
|---|---|---|---|---|---|---|
| PLASTIC RECYCLING 2024-IVIMA.pdf | 10.74MB | 112 | 2024-12-30 | | Copy Link | Download |
| PLASTIC EXTRUSION 2024- IVIMA.pdf | 12.30MB | 104 | 2024-12-30 | | Copy Link | Download |
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