Large Diameter 500-1600MM Polyurethane Spraying Foam Preinsulated Steel Pipe Making Machine with High Pressure Airless Spraying and Turnkey Project

Pipe diameter range: 500-1600MM
Polyurethane spraying polyethylene wrapping pre-insulated pipe production line is used for the production of polyurethane prefabricated direct buried thermal insulating pipes, which are widely used in the field of heating, cooling and crude oil transportation.

Main features of the PU Spray insulation pipe:

• The density of polyurethane is uniform and controllable.
• Polyurethane rigid foam has no empty spaces.
• The surface of polyurethane foam is rough, the shear strength (friction) to the polyethylene outer casing is greater than 200Kpa.
• The thickness of the polyurethane insulation layer and the thickness of the polyethylene outer casing can be adjusted according to the design.
• The production has a high degree of automation.

• Steel pipe range: 206mm-1820mm
• Processing capacity: ≤250m²/h
• Cleaning class: Sa2.5
• Used materials: ISO (isocyanate), POLY (premixed polyether polyols), PE
• Main equipment: Shot blasting and rust removal production line, Polyurethane spray production line, PE winding production line

Why Choose Us?

• Complete turnkey production solutions including design, installation, commissioning and training
• Extensive global production line experience
• Team of senior professional engineers
• Equipped with a national-level plastic machinery expert workstation in China

Our Highlights

• 80+ Invention & Utility Model Patents
• 50+ Exporting Countries & Regions
• 70% Overseas Customer Share

The spraying and winding production process ensures the uniformity of the density of the insulation layer, improves product quality, and reduces production costs.

PUF spray PE winding preinsulated pipe production line consists of the following parts:

1. Steel pipe outwall shot blasting line
2. Polyurethane spray molding line
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: