3LPE Coating Pipe Production Line with Sa2.5 Surface Treatment FBE Powder Spraying and O-Type Co-Extrusion Technology

This O-Type 3LPE steel pipe anti-corrosion coating line is a fully automatic integrated system professionally designed for high-performance protective coating on steel pipes. It combines shot blasting derusting, intermediate-frequency induction heating, electrostatic FBE powder spraying and O-type co-extrusion technology to complete full-process 3LPE and 2LPE anti-corrosion coating in one workflow.

The finished 3LPE coated steel pipes feature excellent resistance to acid, alkali and salt corrosion, stable physical performance and long service life. Widely applicable to oil and gas transmission, municipal water supply and drainage, and industrial fluid pipeline projects, it is ideal core equipment for professional steel pipe anti-corrosion engineering.

The standardized production workflow ensures uniform coating thickness, stable adhesion and high overall efficiency:

1. Pipe Loading: Automated upload via screw conveyor.
2. Surface Treatment: Professional rust removal (Sa2.5) via shot blasting.
3. Induction Heating: Precision intermediate frequency heating for optimal coating adhesion.
4. FBE Coating: Electrostatic Epoxy powder spraying.
5. 3LPE/2LPE Application: O-Type co-extrusion of adhesive and polyethylene layers.
6. Cooling & Finishing: Water spray cooling followed by automated pipe end grinding/beveling.
7. Unloading: Systematic discharge for storage and transport.

• Adopts mature O-type 3LPE co-extrusion technology, ensuring uniform and compact anti-corrosion coating
• All-weather stable running design, equipment failure rate lower than 0.5%
• Full automatic production configuration, effectively reducing labor cost by over 40%
• Compliant with ISO and CE international anti-corrosion industry certification standards
• One-stop full lifecycle service: scheme design → factory installation → on-site commissioning → technical training
• Supported by professional R&D team for high-end plastic and anti-corrosion machinery customization

Qingdao Huashida Machinery Co., LTD is a professional manufacturer with 21 years of experience in plastic extrusion, municipal pipe machinery and steel pipe anti-corrosion equipment.

Main product portfolio covers:

• HDPE jacket pipe for pre-insulated pipe Production Line (110-2000mm)
• Rigid pre-insulated pipe Production Line
• Flexible pre-insulated pipe(PERT) production line
• Steel pipe FBE/2LPE/3LPE anti-corrosion coating line
• Steel pipe derusting line
• PE pressure pipe/Water Gas supply pipe production line
• PP/PE plastic board/sheet/geomembrane production line
• NBR PVC Thermal insulation tube/plate production line
• Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeve, electro-fusion weldable joint sleeve, portable welding gun(extruder), PE PP welding rod.

We have been working with more than 400 overseas customers and exporting our products to Kazakhstan, Uzbekistan, Iran, Turkey, Russia, Nigeria, and other countries.