PLC Controlled 3LPE Coating Pipe Production Line with Electric Heating for 50-100 Years Lifespan

3PE anti-corrosion coating provides triple-layer protection for steel pipes, extending service life from 5-10 years to 50-100 years. The coating system consists of:

• First layer: Fusion bonded epoxy (FBE > 100µm)
• Second layer: Adhesive (AD) 170-250µm
• Third layer: Polyethylene (PE) stripe 2.5-3.7mm

3PE steel coating pipes feature high mechanical strength, excellent electrical insulation performance, process accuracy, and environmental friendliness.

The three-layer HDPE stripe winding process, with epoxy powder coating as the bottom layer and binding adhesive as the second layer, is the widely used technique in steel pipe anti-corrosion worldwide. These anti-corrosion steel pipes are applied in oil, gas, and water supply pipelines.

Upload pipes → Pipes conveyor → Rust removal → Intermediate frequency heating → Epoxy powder coating → Middle layer & polyethylene stripe winding → Water cooling → Pipes conveyor → Pipe chamfer → Unload pipes

Main Equipment of 3PE Anti-corrosion Coating Processing:

Qingdao Huashida Machinery Co., Ltd. is headquartered in Huashida Industrial Park, Chengyang District, Qingdao, China. Founded in 2003, the company is a comprehensive high-tech enterprise integrating R&D, manufacturing, marketing, service, and trade.

Huashida has been committed to the research and development of plastic insulation pipes and steel pipe anti-corrosion pipeline equipment. The company has established close cooperative relations with Beijing University of Chemical Technology, Qingdao University of Science and Technology, Qingdao Institute of Technology, and other high-level institutions.

With rigorous work attitude and strong sense of responsibility, Huashida has obtained more than 80 invention patents and utility model patents by introducing and absorbing foreign advanced technology. The company has won the honor of Specialized Special New Enterprise in Shandong Province and four items of "first sets of equipment enterprises" in Shandong Province.