Automatic 3-Layer Polyethylene & FBE Anti-Corrosion Coating Line with SA2.5 Cleaning for 50-4200mm Pipes

The steel pipe anti-corrosion coating line is designed for coating steel pipes of multiple diameters with anti-corrosion materials in a factory setting. This technology has broad applications in various engineering projects, particularly in heating, gas, and oil extraction industries.

The coating lines are suitable for FBE, 2 layer FBE, 2 layer PE, 2 layer PP, and 3 layer PE anti-corrosion coatings.

The 3-layer PE anti-corrosion coating consists of first FBE coating, middle adhesive layer, and outer polyethylene layer.

Our 3PE anti-corrosion coating production line covers a diameter range of φ50 ~ φ4200 and utilizes three-layer anti-corrosion protection: a layer of epoxy powder (FBE > 120µm), a second layer of adhesive (170 ~ 250µm), and a third layer of polyethylene (PE 1.8-4.2 mm).

1. Upload pipes
2. Pipes screw conveyor
3. Rust removal of intermediate frequency heating
4. Epoxy powder coating
5. Outer layer solid liquid & polyethylene coating
6. Cooling spray
7. Pipes screw conveyor
8. Grinding pipes, send
9. Unload pipes

The three-layer polyethylene anti-corrosion coating represents leading technology that functions as the outermost protective layer for underground pipelines. It is extensively used in corrosion prevention for gas and oil transmission lines, municipal gas supply systems, water pipes, and other fluid transport conduits. This technology enhances pipeline mechanical capabilities with superior electrical insulation, waterproofing, durability, and anti-aging features.

Corrosion-resistant steel pipes are primarily categorized into two main types: internally treated and externally treated.

Internally treated steel pipes are widely used, relatively low-cost, and utilize a coating to protect the pipe's interior. Externally treated steel pipes are primarily 3PE-coated, representing mainstream technology. Our 3PE anti-corrosion production line utilizes mature technology, providing highly effective corrosion protection for both the exterior and interior of steel pipes.

Suitable for various pipe types including straight-seam steel pipe and spiral pipe, the line boasts a comprehensive ISO9001-certified quality assurance system, ensuring reliable, end-to-end quality control.

The anti-corrosion coating processing line includes:

• Steel pipe transmission system
• Surface treatment system
• End cutting system
• Pipe dust removal system
• Pipe heating system
• Electrostatic spraying system
• Coating system
• Water cooling system
• Hydraulic and pneumatic system
• Testing system
• Electronic control system