High-Pressure Foaming Machine Pre-Insulated Pipe Production Line with Sa2.5 Rust Removal and 206mm-1820mm Steel Pipe Coverage
PU Foaming Spary Pre-insulated Pipe Continuous Production Line
1. Pipe structure
Our company independently developed the spray winding insulation pipe production line, which consists of three parts: shot blasting and rust removal production line, polyurethane spraying production line, and PE winding production line.
2. Production line parameters:
(1) Steel pipe coverage: 206mm-1820mm
(2) Processing capacity: ≤250m2/h
(3) Cleaning level: Sa2.5
(4) Materials used: Black material (isocyanate), white material (combined polyether), polyethylene
(5) Main equipment: Shot blasting and rust removal production line, polyurethane spraying production line, PE winding production line, consisting of three parts
3. Technological flow:
PU Foaming spary Preinsulation Pipe Continuous Production Line
PUF spray PE winding preinsulated pipe production line consists of the following parts:
3) Polyethylene sheet extruding winding line
4) Water cooling line
5) End-cutting equipment
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 |
Production line equipment Photos show
Rust Removal 
PE film jacket wrapping 
PE Jacket Water quenching 
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