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
| Parameter | Specification |
|---|---|
| Pipe Diameter Range | Φ48-630mm |
| Total Power | Approx. 850KW |
| Power Supply | 3-phase 380V(-10%~+5%), 50Hz |
| Cooling Water System | ≤15ºC, 0.15-0.2MPa, 0.5m³/min |
| Operating Environment | Indoor, 0-30ºC, ≤85% humidity (non-condensing) |
Production Process
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
Qingdao Huashida Machinery Co., Ltd was established in 2003. Since its inception, Huashida has focused on plastic polyurethane insulation pipe production line, 3PE anti-corrosion pipe production line, large diameter underground pipe production line and plastic pipe joints for 20 years. We always attach great importance to research and development,
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