HDPE Hollow Wall Spiral Pipe Extruding Machine with 200-3000mm Pipe Range and Single-Screw Extruder for High Ring Stiffness

The HDPE Hollow Wall Pipe Extrusion Production Line is engineered for the efficient manufacture of large-diameter HDPE structured wall pipes. Its unique hollow-wall structure delivers high ring stiffness, excellent impact resistance, a lightweight build, and strong resistance to external pressure and creep deformation. The pipes also offer outstanding corrosion resistance against acids, alkalis, salts, and other aggressive substances, ensuring a service life of up to 50 years under suitable operating conditions.

HDPE hollow wall pipes are widely used in municipal drainage, sewage collection, and underground pipeline systems. Compared with traditional concrete and cast iron pipes, they are lighter and easier to transport, install, and connect, which helps reduce labor requirements and overall construction costs. With their durability, reliable performance, and cost-effective installation, these pipes are an ideal solution for modern infrastructure and drainage projects.

The production line adopts advanced extrusion and spiral winding technology. It consists of a single-screw extruder for square-profile extrusion, a square-profile extrusion die, a vacuum calibration tank, a spray cooling tank, a second single-screw extruder for adhesive melting, a spiral winding unit, a cutting unit, and a pipe stacking unit.

• The two single-screw extruders are designed for energy-efficient operation and low-temperature plasticization, suitable for processing high-molecular-weight HDPE materials.
• Optimized screw design ensures efficient material conveying and melting.
• Special screw structures improve the separation of solid and molten materials.
• An optimized feeding system increases extrusion output.
• Advanced mixing and melting technology ensures uniform plasticization at relatively low temperatures.

• A multi-axis transmission gearbox ensures high torque transmission and stable operation.
• A specially designed composite die head enables efficient material feeding and spiral pipe forming.
• Two extruders work together to produce high-quality hollow wall winding pipes with reliable bonding.
• The adhesive extruder can be adjusted vertically and horizontally for convenient operation.
• The optimized winding process ensures consistent pipe quality and structural stability.

• The pipe is cut to the required length using a saw-cutting unit.
• The cutting process is integrated with the production line for efficient operation.

• An OMRON or MITSUBISHI PLC control system with a touchscreen interface enables convenient operation and precise process control.
• A high-speed control system with large storage capacity supports stable and reliable production.
• Extrusion, adhesive melting, spiral winding, and cutting processes can be synchronously controlled.
• The two extruders and the winding unit can be controlled independently according to production requirements.
• Two touchscreen interfaces provide convenient operation and process monitoring.
• Automated coordination between production stages improves efficiency and reduces manual intervention.

• Widely used in municipal sewage and drainage systems.
• An ideal alternative to traditional concrete and cast iron pipes.
• Lightweight design for easy transportation and installation.
• Convenient pipe connection and simple on-site operation.
• Low installation costs and economical construction.
• Excellent market potential for municipal infrastructure and underground drainage projects.

Dimensions are listed in meters (L × W × H). Specifications are subject to change for product improvement.

Qingdao Huashida Machinery Co., Ltd. is a professional manufacturer of plastic extrusion equipment and steel pipe anticorrosion and insulation solutions in China. Our main products include PE insulation jacket pipe extrusion lines, HDPE hollow wall winding pipe production lines, PE/PP sheet extrusion lines, heat-shrinkable sleeves, and electrofusion sleeves.

Our products have been exported to Russia, Iran, the UAE, India, Belarus, Kazakhstan, and many other countries. Located in Qingdao, China, our factory covers approximately 4,000 m² and holds more than 10 patents and various industry certifications.

With strong R&D capabilities, experienced technical teams, and reliable after-sales service, Huashida provides high-quality equipment and customized solutions to customers worldwide.