Double Wall Corrugated Pipe Production Line | UNICORR Type DWC Pipe Extrusion Line

Welcome to our advanced Double Wall Corrugated Pipe Production Line, engineered with the latest UNICORR-type technology to deliver high-speed production, outstanding product quality, and intelligent automation. Designed for manufacturing HDPE and PP double wall corrugated pipes, this extrusion line is the ideal solution for municipal drainage, sewage systems, cable protection, rainwater management, telecommunications, and industrial infrastructure projects.

As a professional Double Wall Corrugated Pipe Machine manufacturer, we focus on providing reliable, energy-efficient, and high-output extrusion equipment that helps customers improve production efficiency while reducing operating costs.

The production process begins with the automatic raw material feeding system. High-quality HDPE or PP resin is delivered to the high-efficiency single screw extruder through a vacuum loader. Optional gravimetric dosing systems accurately control material consumption, ensuring consistent pipe quality while minimizing waste.

The heart of the DWC Pipe Extrusion Line is the high-performance single screw extruder. Featuring an optimized screw design with advanced mixing technology, the extruder provides excellent plasticizing performance, stable melt pressure, and uniform material flow. Intelligent temperature control across multiple heating zones guarantees consistent processing conditions throughout continuous production.

The molten polymer is delivered to the specially designed corrugated pipe die head. Precision flow channels distribute the material evenly, producing pipes with smooth inner walls, well-defined corrugations, and uniform wall thickness. The optimized die design improves melt stability while supporting high-speed extrusion

One of the most important components of the UNICORR-type Double Wall Corrugated Pipe Production Line is the horizontal corrugator. Compared with conventional corrugators, the UNICORR design offers improved mold synchronization, higher forming accuracy, lower maintenance requirements, and greater production stability.

The corrugator adopts a closed water-cooling system combined with vacuum forming technology. As the molten pipe enters the corrugation molds, vacuum pressure precisely shapes the outer corrugated wall while maintaining a smooth inner layer. Efficient cooling ensures rapid solidification, allowing the production line to operate at higher speeds without compromising pipe quality.

The modular mold block system is manufactured from high-strength aluminum alloy with precision CNC machining. Excellent thermal conductivity enables rapid cooling, shorter production cycles, and longer mold service life. Customers can quickly replace mold blocks when changing pipe diameters, significantly reducing production downtime.

The UNICORR mold transport system utilizes precision guide rails and synchronized drive mechanisms to ensure smooth operation even during long production runs. Stable mold movement minimizes vibration and guarantees accurate corrugation geometry throughout the entire pipe length.

Following the corrugator, the pipe enters the automatic cooling and haul-off section. A servo-controlled pulling system maintains perfect synchronization with the extrusion speed, preventing pipe deformation while ensuring dimensional accuracy. The intelligent control system automatically adjusts line speed according to production requirements, maximizing output while maintaining consistent product quality.

The online cutting unit completes the manufacturing process with precise, burr-free cutting. The cutting machine synchronizes automatically with pipe movement, allowing continuous production without stopping the extrusion line. Finished pipes are then transferred to the automatic stacking system for inspection, packaging, or storage.

Our Double Wall Corrugated Pipe Extrusion Line integrates a modern PLC control system with a user-friendly touchscreen interface. Operators can monitor extrusion temperature, screw speed, vacuum pressure, mold cooling temperature, production speed, energy consumption, and alarm status in real time. Production recipes for different pipe sizes can be stored and recalled instantly, reducing setup time and improving manufacturing efficiency.

Energy-saving technology is incorporated throughout the entire production line. High-efficiency motors, frequency inverters, optimized heating systems, and intelligent cooling management significantly reduce electricity consumption. The closed-loop water circulation system minimizes water usage while supporting environmentally responsible manufacturing.

This HDPE Double Wall Corrugated Pipe Production Line is suitable for producing drainage pipes, sewer pipes, stormwater pipes, cable protection conduits, fiber optic duct systems, highway drainage pipes, railway drainage pipes, agricultural irrigation systems, and industrial ventilation ducts.

Finished pipes feature high ring stiffness, lightweight construction, excellent impact resistance, corrosion resistance, chemical resistance, long service life, and easy installation. These advantages make double wall corrugated pipes the preferred choice for modern underground pipeline systems worldwide.

Every production line is assembled, tested, and inspected before shipment. Our experienced engineering team provides complete project support, including factory layout planning, equipment installation, commissioning, operator training, process optimization, spare parts supply, and long-term technical service.

With years of experience in plastic pipe extrusion equipment, we have successfully supplied Double Wall Corrugated Pipe Production Lines to customers across Europe, the Middle East, Southeast Asia, Africa, and South America. Our commitment to innovation, quality, and customer satisfaction has earned us a strong reputation in the global plastic machinery industry.

Whether you are expanding your production capacity or establishing a new pipe manufacturing facility, our UNICORR-type Double Wall Corrugated Pipe Extrusion Line provides an ideal combination of high productivity, intelligent automation, stable operation, and low maintenance costs.

Frequently Asked Questions (FAQ)

Q1: What materials can this Double Wall Corrugated Pipe Production Line process?
Our extrusion line is designed for HDPE and PP materials and can be customized for different formulations based on customer requirements.

Q2: What pipe diameter range is available?
The production line can be configured for pipe sizes from approximately 75 mm to 1200 mm or larger, depending on the selected model and mold system.

Q3: What are the advantages of the UNICORR-type corrugator?
The UNICORR-type design offers higher production speed, better mold synchronization, improved cooling efficiency, lower maintenance requirements, longer mold life, and more stable pipe quality than many conventional corrugators.

Q4: Is the production line fully automatic?
Yes. Material feeding, extrusion, corrugation, vacuum forming, cooling, haul-off, cutting, and stacking can all be integrated into a fully automated production process controlled by a centralized PLC system.

Q5: Can the machine be customized?
Absolutely. We can customize the extruder configuration, pipe diameter range, output capacity, electrical components, automation level, and downstream equipment according to your production requirements.

Q6: What after-sales services do you provide?
We provide installation, commissioning, operator training, remote technical support, spare parts supply, preventive maintenance guidance, and long-term after-sales service to ensure reliable equipment performance throughout its lifetime.

Thank you for your interest in our Double Wall Corrugated Pipe Production Line. We are committed to delivering advanced plastic extrusion technology, dependable machinery, and professional service to help manufacturers achieve greater productivity and long-term business success.