3LPE Steel Pipe External Anti-Corrosion Coating Line
The 3PE anti-corrosion coating processing line is engineered to apply a three-layer protective coating onto steel pipes of various specifications.
The system sequentially applies:
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Fusion Bonded Epoxy (FBE) - ensures strong adhesion and corrosion resistance
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Adhesive layer - bonds the epoxy to the outer layer
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Polyethylene outer layer - provides durable mechanical protection and insulation
3PE can strengthen the pipeline's mechanical properties, high electrical resistance, waterproof, wearable, anti-aging.
3PE coating/coated steel pipes are widely used in pipeline systems for the transmission of oil, gas, water and other fluids. They have highly resistance to corrosive from chemicals, moisture, harmful environment etc.
The 3PE anti-corrosion coating line integrates the following systems:
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Steel pipe conveying system
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Surface pretreatment unit
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Dust collection system
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Intermediate frequency preheating system
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Electrostatic spraying system
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Coating application unit
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Water cooling section
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Pipe end grinding & cutting device
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Hydraulic & pneumatic control system
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Online inspection system
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Centralized electrical control system
Pipe loading → Screw conveyor feeding → Surface rust removal & cleaning → Intermediate frequency preheating → FBE electrostatic powder spraying → Outer adhesive & polyethylene coating → Water spray cooling → Screw conveyor transfer → Pipe end grinding & finishing → Finished pipe unloading
| No. | Name | Set |
| A. Derusting Equipment | ||
| 1 | Pipe-converying Equipment | 1 |
| 2 | Shot Blast Cleaning 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 | Coating transfer equipment | 1 |
| 2 | IF heating device | 1 |
| 3 | Powder spraying device | 1 |
| 4 | Automatic loading dryer | 2 |
| 5 | SJ-65/30 Extruder | 1 |
| 6 | SJ-180/30 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 platform | 1 |
| 2 | Post-rust removal transition platform | 1 |
| 3 | Product tube storage platform | 1 |
| 4 | Hydraulic Equipment | 3 |
| D. Groove Equipment | ||
| 1 | PE Beveling Machine | 2 |
| 2 | Hydraulic Lifting and Turning Machinery | 1 |
| 3 | Hydraulic Equipment | 1 |
| 4 | PLC | 1 |
| E.Compressed air Equipment | ||
| 1 | Screw Air Compressor | 1 |
| 2 | Cold dry machine | 1 |
| 3 | Precision filters | 3 |
| 4 | Gas tanks | 1 |
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