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

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.