Advanced 3PE Coating Line for Steel Pipes

The structure of 3-layer PE coating (3PE)

3-layer PE coating working process

Upload pipes→screw conveyor→rust removal → intermediate frequency heating→Epoxy powder coating→Adhesive & polyethylene coating→cooling spray→pipes screw conveyor→Pipe end beveling→unload pipes

Advantages of equipment

✔ Complete Turnkey Solution – From surface treatment to final inspection

✔ Multi-Layer Protection – Epoxy + Adhesive + Polyethylene for maximum durability

✔ Wide Pipe Compatibility – Covers Ø50mm–Ø2000mm (customizable)

✔ Energy-Efficient Design – 20-30% lower power consumption vs conventional lines

✔ Smart Control System – PLC/HMI with real-time monitoring and data logging

General Production Line Configuration
-steel pipe transmission system
-surface treatment system
-dust removal system
-pipe heating system
-electrostatic spraying system
-coating system
-water cooling system
-end cutting system
-hydraulic and pneumatic system
-testing system
-electronic control system.

Company Profile

Qingdao Huashida Machinery Co., LTD, is a manufacturer of series of plastic pipe machines, municipal pipe machines, pipe insulation&anticorrosion machines, and pipe jointing&anticorrosion materials, with 21 years of production experience.
Our main products are:
1. HDPE jacket pipe for pre-insulated pipe Production Line (110-2000mm)
2. Rigid pre-insulated pipe Production Line
3. Flexible pre-insulated pipe(PERT) production line
4. Steel pipe FBE/2LPE/3LPE anti-corrosion coating line
5. Steel pipe derusting line
6. PE pressure pipe/Water Gas supply pipe production line
6. PP/PE plastic board/sheet/geomembrane production line
7. NBR PVC Thermal insulation tube/plate production line
8.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.