Pipe external insulation coating production line for Fbe Internal/External 3lpe
Steel Pipe Anticorrosion Coating Production Line
The steel pipe anticorrosion coating production line is designed for applying protective coatings on steel pipes of various diameters. It is widely used in engineering projects such as district heating networks, gas pipelines, and oil transmission systems.
This production line adopts advanced coating technology to provide excellent corrosion protection for steel pipes. The 3LPE coating system significantly improves the mechanical strength of pipelines and offers outstanding electrical insulation, waterproof performance, long service life, and strong resistance to aging.
The line supports multiple coating processes, including FBE, 2-layer FBE, 2-layer PE, 2-layer PP, and 3-layer PE anticorrosion coatings.
The 3-layer PE (3LPE) coating structure consists of:
An inner fusion bonded epoxy (FBE) layer
A middle adhesive layer
An outer polyethylene (PE) protective layer
This multilayer structure ensures strong adhesion, reliable sealing, and superior long-term corrosion resistance.
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Technical Parameters:
Pipe diameter range: 50-4200 mm
Production capacity: ≥ 250 m²/h
Surface cleaning grade: ≥ Sa2.5
Coating materials: epoxy powder, adhesive, polyethylen
The Anticorrosion coating processing line includes:
-steel pipe transmission system
-surface treatment system
-pipe dust removal system
-pipe heating system
-electrostatic spraying system
-coating system
-water cooling system
-end cutting system
-hydraulic and pneumatic system
-testing system
-electronic control system
-bevelling system
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Upload pipes→pipes screw conveyor→rust removal → intermediate frequency heating→Epoxy powder coating→outer layer adhesive polyethylene coating→cooling spray→pipes screw conveyor→grinding pipe ends→dowload pipes![]()
Main Equipment List
| No. | Name | Set |
| A. Derusting Equipment | ||
| 1 | Pipe wheel conveyor | 1 |
| 2 | Shot Blasting Machine | 1 |
| 3 | Cyclone Dust Collector | 1 |
| 4 | Pulse dust collector | 1 |
| 5 | Centrifugal exhaust fan | 1 |
| 6 | Rust removal equipment PLC | 1 |
| B. Coating equipment | ||
| 1 | Pipe wheel conveyor | 1 |
| 2 | Induction heating device | 1 |
| 3 | Powder spraying device | 1 |
| 4 | Automatic loading dryer | 2 |
| 5 | SJ-65/30 Extruder | 1 |
| 6 | SJ-120/30 Extruder | 1 |
| 7 | Hot melt adhesive extruder die | 1 |
| 8 | PE sheet extruder head mold | 1 |
| 9 | Hot melt adhesive/PE sheet coating device | 1 |
| 10 | Environmental Protection Ventilation equipment | 1 |
| 11 | Cooling Spray equipment | 1 |
| C.Platform Equipment | ||
| 1 | Steel pipe uploading platform | 1 |
| 2 | Downloading platform | 1 |
| 3 | Pipe storage platform | 1 |
| 4 | Turnover machanism | 3 |
| D.Groove Equipment | ||
| 1 | PE Beveling Machine | 2 |
| 2 | Hydraulic Lifting and Turning Machinery | 1 |
| 3 | Hydraulic Equipment | 1 |
| 4 | PLC automatic control system | 1 |
Qingdao Huashida Machinery Co., LTD., founded in 2003, is a global developer, manufacturer and solution provider of plastic extrusion equipment. 70% of its customers come from overseas countries such as Europe, America, the Middle East and Southeast Asia.
Welcome to our factory to discuss cooperation!![]()
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