Continuous PU Foaming Pre-Insulated Pipe Production Line for HDPE Outer Jacket and Thermal Insulation

• Customization: Available
• Warranty: 12 Months
• Product Type: PE Pipe
• Model NO.: Pre-Insulated Jacket line
• Screw No.: Single-screw
• Automation: Automatic
• Computerized: Computerized
• Certification: CE, ISO9001:2008
• Customized: Customized
• Condition: New
• After-sales Service: Technical Service with Free,Training The Workers
• Principle: High-Pressure Air Type
• Temperature Classification: High Temperature Piping
• Standard: ASTM, GB, DIN
• Cross-Section Shape: Round
• Material: PE/PP
• MPa Classfication: Low Pressure Piping
• Medium: Liquid
• Connection Type: Welding
• Transport Package: Standard Package
• Specification: 48-630mm
• Trademark: huashida
• Origin: Qingdao, China
• HS Code: 84772090
• Production Capacity: 50 Units/Year
• Package Size: 1200.00cm * 230.00cm * 260.00cm
• Package Gross Weight: 1000.000kg

Product Description

Product Description

Continuous PU Foaming Insulation Pipe Jacket Shell Extrusion Line

High Efficiency PU Insulation Plastic Pipe Making Machine (Pipe Dia. 48-630mm)

This Continuous PU Foaming Insulation Pipe Jacket Extrusion Line is specially designed for the production of small and medium diameter pre-insulated PU thermal pipes, with jacket pipe diameters ranging from 48mm to 630mm. It integrates HDPE jacket pipe extrusion, epoxy coating, adhesive wrapping, and continuous PU foaming technology into a fully automated continuous production system, ensuring high efficiency, consistent quality, and reduced labor cost.
 

 

Applications

Widely used for:

• District heating and cooling pipelines

• Underground thermal insulation piping systems

• Pre-insulated oil and chemical transport pipelines

 

Production Process Flow

1. Pipe loading

2. External derusting

3. Label application on pipe side

4. Intermediate pipe heating

5. External epoxy powder coating

6. Water cooling

7. Coating layer inspection

8. Hot melt adhesive application

9. HDPE jacket pipe extrusion and coating

10. Continuous PU foaming filling

11. Foam rectification

12. Pipe edge trimming

13. Final water cooling

14. Pipe end sealing (heat shrink)

15. Pipe unloading

 

Technical Specifications

• Applicable Pipe Diameter: 48mm - 630mm

• Extrusion Material: HDPE pellets

• Insulation Material: Polyurethane (PU) foaming agent

• Coating Materials: Hot melt adhesive, Epoxy powder

• Power Supply: 380V (-10% ~ +5%), 50Hz, 3-phase

• Total Installed Power: Approx. 850 KW

• Cooling Water Requirements:

  • Temperature: ≤15ºC

  • Pressure: 0.15-0.2 MPa

  • Flow Rate: 0.5 m³/min

Operating Conditions

• Installation Site: Indoor

• Ambient Temperature: 0-30ºC

• Humidity: ≤85% (no condensation)

• Safety: Non-hazardous operation environment

Features

• Continuous production for higher productivity

• Strong insulation bonding, stable foam density

• Online coating inspection and sealing ensures pipe durability

• Suitable for customized PU insulated pipe manufacturing projects

 

Company Profile

  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,

collaborating closely with Beijing University of chemical technology, Qingdao university of technology and scientific research institutions. by absorbing advanced technology home and abroad, after 20 years of endeavor we now rank one of the top 3 manufacturers in the industry in China.  Huashida machines have been well received in Saudi Arabia, Kazakhstan, Uzbekistan, United Arab Emirates, Turkey, Russia, etc.

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