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.

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

• 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

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.

Exhibition

client

packaging

Certifications

1. company profile

Qingdao Huashida Machinery Co., Ltd. is located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have tens of years experience in plastic pipe, sheet, and board extrusion lines, and pipe joints and welding tools such as heat shrinkable sleeve, Electro fusion sleeve etc.

2. main products

Our main products include as following,HDPE PU pre-insulation Jacket Pipe extrusion line,3PE steel pipe anticorrosion&coating machinery,Rubber&plastic foam flexible insulation tube/sheet production line,HDPE water supplying pipe extrusion line,PE PP sheet board extrusion line,Heat shrinkable sleeve production line,Hollow wall spiral pipe production line,Plastic welding rod extrusion line,Radiation cross-linked PE heat shrinkable sleeve,Electro fusion tape,Portable extrusion welder.

Our machines make products what are widely used as jacket pipe of PU foam insulation pipe in municipal heating pipe system; Municipal water supplying and drainage pipeline; Oil and gas pipeline; Pipe joints of plastic drainage water pipes, PU foam insulation pipelines, 2PE/3PE oil and gas pipelines;
Besides manufacturing machines, we also make Heat shrinkable sleeves and electro fusion sleeves and plastic welders, which are widely used as pipe joints and sealings of plastic drainage water pipes, PU foam insulation pipelines, 2PE/3PE oil and gas pipelines;

4. Our certificates and Patents

5. Global market
Our purpose is to supply highest cost-effective products and the most suitable solutions to our clients, as well as intimate help and service, on this basis we reach a win-win situation.
For over 14years We have exported to many foreign countries, such as Russia, Iran, Turkey, U. A. E, Sudan, Ukraine, Uzbekistan, Azerbaijan, South Asia, Poland etc.

6. Core Team

The guarantee period is 12 months from the date of installing, but no more than 14 months from the date of delivery. After this period we are obliged to provide with lifelong service at the expense of Buyer.During the warranty period we are responsible to provide trouble shootings and help the customer to solve the problems, provide spare parts which are broken, except breakings caused by the Buyer.We will provide the technical service train the workers from the buyers for free.We can also send technicians to the buyer's companies abroad for help installation and testing the lines. But the buyer shall pay for the round trip tickets, accommodation, transportation, medicine treatment and insurance of the technicians in foreign countries and some salary accordingly.