| Customization: | Available |
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| Warranty: | 12 Months |
| Product Type: | PE Pipe |
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Huashida's independently developed PUR Spray & PE Wrapping Insulated Steel Pipe Production Line (suitable for 508-1620 mm steel pipes) integrates three core sections: an external pipe shot blasting and rust removal line, a polyurethane spray foaming line, and a PE wrap winding line.
This advanced production system is supported by multiple national utility patents and has received a Level 5 technology rating from a third-party evaluation, meeting domestic leading industry standards. It has also been recognized as a "First Set of Technical Equipment" in Shandong Province.
The line adopts a continuous PUR spraying process and is fully automated, delivering high production efficiency, reduced raw material consumption, and optimized energy savings. It ensures excellent polyurethane foaming quality, a high closed-cell rate, low water absorption, and a stable three-in-one (trinity) molded structure.
The resulting insulated pipes are eco-friendly and low-carbon, offering stable performance along with outstanding economic and social benefits.
No. |
(DN) |
The thickness of the insulation layer |
Outer casing dia. |
Min. thickness of the outer casing |
| 1 | 500 | 30-60 | 598-658 | 4.5 |
| 2 | 600 | 30-60 | 700-760 | 5.0 |
| 3 | 700 | 30-60 | 790-850 | 5.0 |
| 4 | 800 | 30-60 | 891-951 | 5.5 |
| 5 | 900 | 30-60 | 992-1052 | 6.0 |
| 6 | 1000 | 30-60 | 1093-1153 | 6.5 |
| 7 | 1100 | 30-60 | 1194-1254 | 7.0 |
| 8 | 1200 | 40-100 | 1316-1436 | 8.0 |
| 9 | 1400 | 50-100 | 1538-1678 | 9.0 |
| 10 | 1620 | 50-100 | 1738-1840 | 10.0 |
The spraying and winding production process ensures the uniformity of the density of the insulation layer, significantly improving product quality and reducing production costs.
The PUF spray PE winding pre - insulated pipe production line mainly consists of the following parts:
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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