Automatic 2LPE 3LPE FBE Steel Pipe Coating Line | External & Internal Anti-Corrosion
High-Performance Steel Pipe Anti-Corrosion Coating Solutions
The Automatic 2LPE 3LPE FBE Epoxy Powder Coating Line is a professional industrial solution designed for the external and internal anti-corrosion treatment of steel pipes. This production line is widely utilized in large-scale engineering projects, particularly in the oil and gas industry, urban gas supply, and water transportation systems.
Our coating technology supports multiple international anti-corrosion standards, including DIN30670-1991, ISO21809-1-2009, and GOST 9.602-2016, ensuring your products meet global market requirements.
Multi-Functional Coating Capabilities
This versatile line is engineered to apply various high-quality protective layers:
FBE Coating: Fusion Bonded Epoxy powder for superior adhesion.
3LPE / 2LPE: Three-layer or two-layer extruded polyethylene coating.
3LPP / 2LPP: Three-layer or two-layer polypropylene coating for high-temperature resistance.
Liquid Epoxy: For specialized internal pipe protection.
Technical Specifications and Process Workflow
The 3LPE coating process integrates advanced automation to ensure uniform thickness and long-term durability.
Technological Process of 3LPE Coating
The production flow is optimized for efficiency:
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Pipe Uploading ➔ 2. Surface Shot Blasting ➔ 3. Medium Frequency Induction Heating ➔ 4. Epoxy Powder Spraying ➔ 5. Adhesive & PE Extrusion Coating ➔ 6. Water Cooling ➔ 7. Pipe End Cutting & Bevelling ➔ 8. Final Unloading
Key System Components
Surface Cleaning: High-efficiency shot blasting machines with cyclone and impulse cartridge dust collectors.
Heating System: Precision induction heating for optimal powder fusion.
Extrusion System: Equipped with SJ-180/30 and SJ-65/30 extruders for precise PE and adhesive application.
Control System: Full PLC automated control for adjustable speeds and angles.
Product Parameters and Applications
The three-layer polyethylene (3LPE) system combines the excellent chemical resistance of epoxy with the mechanical protection of polyethylene. This enhances the pipeline's performance with high electrical resistance, waterproof capabilities, and anti-aging properties.
| Category |
Key Equipment |
Specifications/Features |
| Surface Prep |
Shot Blasting Machine |
High-efficiency cleaning to Sa2.5 standard |
| Coating |
Powder Spraying Device |
Adjustable thickness 80-800μm |
| Extrusion |
PE/Adhesive Extruders |
High-quality die steel moulds for uniform coating |
| Cooling |
Spray Cooling System |
Rapid water cooling for coating stabilization |
| Finishing |
PE Beveling Machine |
Professional steel brush disk for pipe end treatment |
Why Choose Qingdao Huashida Machinery?
Qingdao Huashida Machinery Co., Ltd, established in 2003, is a top-tier manufacturer specializing in plastic extrusion and pipe coating technology. With over 20 years of R&D in collaboration with leading technical universities, we have become a leading name in China's pipe coating industry.
Our machinery is globally recognized for its reliability and is currently operating in Turkey, Saudi Arabia, Kazakhstan, Uzbekistan, UAE, and Russia. We provide complete turnkey solutions from design to installation, helping our clients achieve superior anti-corrosion performance for infrastructure projects.
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