PU Foaming spary Preinsulation Pipe Continuous machinery
Product Description
The polyurethane sprayed polyethylene thermal winding preinsulation pipe production line independently developed by Huashida, consists of three parts: External shot blasting and derusting collector production line, polyurethane spraying production line, and PE winding production line. The line has a number of national patents, and the third-party standardized evaluation report has a technology advanced level of 5, reaching the domestic leading level. And won the first set of technical equipment in Shandong Province.
The line adopts continuous spraying production process. High automatic, fast production efficiency, saving raw materials, increased foaming and closed cell rate, lower water absorption rate, trinity molding, and more reliable performance. Products with low carbon environmental protection have higher economic and social benefits.
PU Foaming spary Preinsulation Pipe Continuous Production Line
Product Parameters
Producing technology flow of the polyurethane coating steel preinsulated pipe equipment:
1. Remove rust from steel pipe surface
2. preheat the steel pipe to get it ready for polyurethane spraying
3. Spray polyurethane evenly on steel pipe outer surface
4. Wrap melted HDPE strap around the PU foam
5. Trim the pipe ends
Main line Composition of the polyurethane coating steel preinsulated pipe equipment:
| No. |
name |
| 1 |
External wall Shot blasting rust removel machine |
| 2 |
Medium-frequency induction heating furnace |
| 3 |
Polyurethane spray foaming unit |
| 4 |
pipe rotator trolley |
| 5 |
Single screw extruder and diehead mould |
| 6 |
Finished pipe ends trimming machine |
| 7 |
pipe Conveyers and racks |
| 8 |
Electrical system and PLC |
Photos show
PE film jacket wrapping 
PE Jacket Water quenching 
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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Container Delivery 
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PE film jacket wrapping 
