3LPE Coating Pipe Production Line Supporting Steel Pipe Surface Treatment with

This TPEP Steel Pipe FBE 3LPE Anti-Corrosion Coating Line is a fully automatic integrated steel pipe anti-corrosion coating machinery specially built for factory anti-corrosion treatment of large diameter steel pipes. It supports multi-layer coating processes including FBE single layer, 2LPE, 2LPP and 3LPE anti-corrosion coating, widely used in oil gas pipeline, oilfield engineering, central heating, municipal water supply and buried pipeline construction projects.

This complete 3LPE coating line integrates internal external shot blasting derusting, intermediate frequency induction heating, electrostatic FBE powder spraying, hot melt adhesive extrusion, outer PE cladding, water spray cooling, pipe end beveling and full PLC automatic control system. It realizes one-time synchronous forming of internal FBE epoxy layer, middle adhesive layer and external 3LPE polyethylene protective layer, meeting international anti-corrosion standards and ideal for long-distance buried steel pipe protection.

FBE epoxy powder coating adopts non-toxic thermosetting raw materials. After high-temperature curing, it forms a high-molecular cross-linked dense protective structure with outstanding chemical anti-corrosion, wear resistance, anti-aging and mechanical strength. The FBE base layer closely bonds with steel pipe surface, delivering excellent adhesion, acid alkali resistance and cathodic disbondment resistance.

The middle polymer adhesive layer perfectly combines with uncured epoxy powder, then tightly covers the outer polyethylene layer, forming a stable three-layer anti-corrosion system - the core technical advantage of professional buried pipe anti-corrosion equipment.

• Premium Anti-Corrosion Performance - Professional internal external FBE coating protects steel pipes against chemical erosion, aging and mechanical damage; suitable for long-term operation in harsh oilfield, underground and coastal environments.
• Low Friction Pipeline Performance - Smooth coating surface reduces fluid transmission resistance, improves conveying efficiency and cuts long-term energy cost for oil gas and water supply pipeline systems.
• Wide Industry Application - The preferred 3LPE anti-corrosion solution for oil & gas transmission, urban gas supply, municipal water drainage, heating network and large infrastructure buried pipe projects.
• High Automation & Cost Saving - Full automatic running design lowers labor input, stable operation reduces failure rate, making it cost-effective pipe coating machinery for manufacturers.

Process Adaptability: Flexible to support single-layer FBE spraying or composite 3LPE coating; compatible with outer 3LPE + internal FBE combined structure, fully adapting to civil water supply, long-distance oil gas transportation, heating pipeline and multiple engineering scenarios.

Efficient and Stable Performance: Precise intermediate frequency heating system reaches ±2°C temperature accuracy, ensuring uniform epoxy powder melting and firm coating adhesion. Adjustable spiral conveyor speed fits different large diameter steel pipes, keeping stable processing capacity and consistent anti-corrosion quality.

Environmental Compliance: Equipped with professional dust collector and powder recovery system, fully compliant with CE & ISO14001 environmental standards. Zero dust pollution meets global factory environmental requirements for steel pipe derusting and coating production.

We have completed more than 50 projects at home and abroad, with our equipment installed and put into use in countries such as Russia, Iran, the United Arab Emirates, India, Belarus, and Kazakhstan, gaining wide recognition from global clients.

Our History: Qingdao Huashida Machinery Co., Ltd. was established in 2003. Since its inception, Huashida has focused on the R&D and production of plastic polyurethane insulation pipe production lines, 3PE anti-corrosion pipe production lines, large-diameter underground pipe production lines, and plastic pipe joints for 20 years. We have always attached great importance to research and development, cooperating closely with Tsinghua University, Beijing University of Chemical Technology, South China University of Technology, and other scientific research institutions. By absorbing advanced technology from home and abroad, we have now become one of the top 3 manufacturers in the Chinese industry.