PU Foaming Insulation Pipe Making Machine With HDPE Jacket Extrusion

Our fully automated production line is specially designed for manufacturing polyurethane (PU) foam insulated pipes with diameters ranging from Φ48-630mm. By integrating multiple processes including outer protective pipe extrusion and insulation material pouring into one continuous operation, this system ensures high production efficiency while maintaining consistent product quality. The equipment guarantees perfect bonding between the inner pipe, insulation layer, and outer protective jacket, making it ideal for various insulated pipeline applications.

• Fully automated continuous production process

• High efficiency with stable product quality

• Precise foam density control for optimal insulation

• Dual protection: epoxy anti-corrosion coating + HDPE outer jacket

• Accommodates multiple pipe diameters from Φ48-325mm

Technical Specifications

Production Process

1. Pipe loading → 2. External derusting → 3. Labeling → 4. Intermediate heating → 5. Epoxy coating → 6. Water cooling → 7. Coating inspection → 8. Adhesive application → 9. PE jacket extrusion → 10. PU foaming → 11. Foam leveling → 12. Pipe end cutting → 13. Water cooling → 14. Heat shrink sealing → 15. Finished pipe unloading
    

    

Raw Materials

• HDPE pellets (outer protective pipe)

• Hot melt adhesive (bonding layer)

• Epoxy powder (anti-corrosion layer)

• Polyurethane foam material (insulation layer)

Applications
√ District heating pipeline networks
√ Oil & gas transmission pipelines
√ Chemical industry insulated pipelines
√ Refrigeration and HVAC pipeline systems

Service & Support

• Installation and commissioning services

• Professional technical training

• Comprehensive after-sales service system

• Customized specifications available upon request