Automated O-Type Co-Extrusion 3LPE Coating Production Line with Sa2.5 Surface Treatment for 76mm-305mm Steel Pipe Anti-corrosion Coating Machinery
The Huashida 3LPE/FBE Steel Pipe Anti-Corrosion Coating Line is a comprehensive, fully automated solution for applying high-performance protective layers to steel pipelines. This complete system integrates advanced shot blasting, precision intermediate-frequency heating, electrostatic powder spraying, and O-type co-extrusion technology for PE and adhesive applications.
Engineered for extreme environments, the 3LPE-coated pipes produced on this line offer superior resistance to chemical degradation, acids, bases, and salt solutions. This ensures maximum stability and an extended service life for critical infrastructure in oil and gas transmission, municipal water management, and industrial fluid transportation.
Our streamlined workflow ensures uniform coating thickness and high-speed output:
- Pipe Loading: Automated upload via screw conveyor.
- Surface Treatment: Professional rust removal (Sa2.5) via shot blasting.
- Induction Heating: Precision intermediate frequency heating for optimal coating adhesion.
- FBE Coating: Electrostatic Epoxy powder spraying.
- 3LPE/2LPE Application: O-Type co-extrusion of adhesive and polyethylene layers.
- Cooling & Finishing: Water spray cooling followed by automated pipe end grinding/beveling.
- Unloading: Systematic discharge for storage and transport.
| No. | Parameter Category | Specifications/Details |
| 1 | Steel Pipe Range | 76mm-273mm / 89mm-305mm (Customizable) |
| 2 | Processing Capacity | ≥150 m²/h |
| 3 | Cleaning Level | International Standard Sa2.5 |
| 4 | Production Materials | Epoxy powder (FBE), Adhesive, Polyethylene (PE) |
- Cutting-Edge Innovation: Patented O-Type extrusion technology enhances coating uniformity and material efficiency.
- Industrial Reliability: All-weather stable operation with a failure rate of <0.5%.
- High ROI: Automated systems reduce labor costs by over 40%.
- Global Compliance: Fully certified to ISO and CE anti-corrosion standards.
- Turnkey Service: Complete lifecycle support-from factory design and installation to commissioning and staff training.
- R&D Excellence: Technical support from our premier High-End Plastic Machinery Expert Workstation.
| 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 control system | 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-90/30 Extruder | 1 |
| 7 | Hot melt adhesive extruder die | 1 |
| 8 | PE extruder head mold | 1 |
| 9 | Hot melt adhesive/PE coating device | 1 |
| 10 | 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 | 2 |
| D. Groove Equipment | ||
| 1 | PE Beveling Machine | 2 |
| 2 | Hydraulic Lifting and Turning Machinery | 1 |
| 3 | Hydraulic Equipment | 1 |
Qingdao Huashida Machinery Co., LTD is a leading global manufacturer with 21 years of expertise in plastic pipe extrusion and anti-corrosion coating technology. We have successfully served over 400 overseas customers in Kazakhstan, Uzbekistan, Turkey, Russia, and Nigeria.
Our Core Expertise Includes:
- 3LPE/FBE Steel Pipe Coating Lines (External & Internal)
- HDPE Jacket Pipe Production Lines (110mm-2000mm)
- Rigid and Flexible Pre-insulated Pipe Production Lines
- Steel Pipe Derusting and Surface Preparation Lines
- PE Pressure Pipe & Municipal Water/Gas Supply Pipe Lines
- Pipeline Anti-corrosion Materials: Heat shrink sleeves, Electro-fusion joints, and PE/PP welding rods.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.