PU Polyurethane Foam Machine for Pre-insulated Pipe 500-1600 High Pressure Air Type
The polyurethane sprayed polyethylene thermal winding preinsulation pipe production line, independently developed by Huashida, is composed of three main sections: the external shot blasting and derusting collector production line, the polyurethane spraying production line, and the PE winding production line. This production line holds numerous national patents and has been rated as having a technology advanced level of 5 by a third-party standardized evaluation, indicating that it has reached the domestic leading level. It has also been awarded the first set of technical equipment in Shandong Province.
The production line utilizes a continuous spraying process, characterized by high automation, rapid production efficiency, and raw material savings. It also features an increased foaming and closed cell rate, a lower water absorption rate, trinity molding, and enhanced reliability. The products manufactured are low-carbon and environmentally friendly, offering significant 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 |
Product specification table
| No. |
(DN)Inner diameter of steel pipe |
Insulation pipe thickness |
Diameter of outer production tube |
Minimum wall thickness of outer jacket |
| 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 |
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,
Thank you very much for you looking into Huashida equipment. For more details, please come back to us. We will respond immediatedly and work out a customized plan for you according to your requirements and demands.
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