PVC Twin Pipes Extrusion Line

As a professional China-based supplier, Comrise factory's PVC twin pipes extrusion line features a conical twin-screw extruder and dual-stream independent control for good plasticizing, energy efficiency, and space savings. Suitable for electrical conduits, plumbing, and irrigation pipes, the line delivers precision wall thickness, automated cutting, and global after-sales support—maximizing ROI and productivity for professional extrusion operations.

Key Features & Benefits: Your Competitive Edge

Dual-Stream High Output: PVC twin pipes extrusion line can produce two pipes simultaneously with independent speed control for each line, maximizing extruder utilization and ROI.

Precision Engineering: High-torque gearbox and optimized screw design ensure stable extrusion, superior plasticizing, and consistent wall thickness.

Energy & Space Efficient: Advanced conical twin-screw technology reduces energy consumption per kilogram of output and saves valuable factory floor space.

Plug-and-Produce Reliability: Complete line solution with automated haul-off and cutting, backed by global after-sales support and operator training.

In-Depth Component Performance

1. Conical Twin-Screw Extruder: The Heart of Stability

The core of the PVC twin pipes extrusion line is a heavy-duty conical twin-screw extruder (SJSZ series). Its unique geometry provides superior conveying efficiency and compression for PVC dry blend.

Precision Barrel & Screw: Manufactured from nitrided alloy steel (38CrMoAlA) for exceptional wear and corrosion resistance. The screw design features dedicated mixing sections for uniform melt temperature and excellent plasticizing, critical for producing pressure-rated pipes.

Vacuum Degassing: Integrated venting zone with vacuum pump effectively removes moisture and volatiles, eliminating bubbles and ensuring a smooth inner pipe surface.

2. Dual-Cavity Die Head & Vacuum Calibration

Dual-Stream Die Head: Crafted from high-grade forged steel with precision flow channels. The design ensures balanced melt flow to both cavities, allowing for the production of two identical pipes or, with optional configuration, two different diameters simultaneously.

Stainless Steel Vacuum Tank: The vacuum calibration tank (304 stainless steel) features a spray cooling system for rapid and uniform heat removal.

3. Haul-off & Cutting

Dual Caterpillar Haul-off: Each pipe is pulled by an independent, frequency-controlled caterpillar haul-off unit. This allows for precise speed synchronization with the extruder and individual fine-tuning to manage wall thickness for each pipe separately.

Automatic Cutting System: Equipped with high-speed saws or planetary cutters featuring automatic length counting. The system ensures clean, burr-free cuts and seamless stacking, minimizing manual intervention.

Applications & Ideal Use Cases

This PVC twin pipes extrusion line is the perfect solution for manufacturers targeting high-volume markets for small-diameter PVC pipes:

Electrical Conduit & Cable Duct:Produce rigid conduits for building wiring and telecommunications with excellent insulation properties.

Plumbing & Water Supply:Manufacture cold water pipes and drainage pipes with smooth interiors for high flow capacity.

Agricultural Irrigation:Durable pipes for drip irrigation laterals and greenhouse water distribution.

Why Choose This Machine?

Unmatched Productivity

By extruding two pipes at once, you effectively double your production capacity without doubling your energy consumption or factory footprint. This is the most cost-effective solution for scaling up output of small-diameter pipes.

Built-to-Last Quality

We use internationally renowned components (e.g., Siemens PLC, ABB inverters, premium alloy steels) to ensure machine longevity and minimal downtime. Our rigorous factory testing guarantees every line performs to specification upon delivery.

Tailored to Your Needs

We understand that one size does not fit all. Our engineering team can customize the line for specific raw materials (including recycled content), special pipe standards (ASTM, DIN, ISO), and unique factory layouts.

Your Partner in Extrusion Success

At Comrise Machinery, we don't just sell machines; we deliver complete production solutions.

Professional Installation & Commissioning: Our engineers will supervise installation and ensure a smooth startup.

Comprehensive Operator Training: We train your team on operation, maintenance, and basic troubleshooting.

Global After-Sales Support: Access to a global network of service engineers and a ready supply of genuine spare parts.

Ready to PVC twin pipes extrusion line? Contact us today for a detailed quotation and factory layout proposal.