Steel Pipe FBE Epoxy Coating Production Line with PLC Automatic Control and High Voltage Electrostatic Spray Gun for 114mm-4200mm Pipes

Huashida steel pipe internal & external epoxy coating equipment adopts advanced metering spray technology to ensure uniform coating, improving corrosion resistance and extending pipeline service life. The line is equipped with a PLC automatic control system for stable and efficient operation.

Epoxy powder coating provides excellent corrosion protection with a smooth, low-friction surface, and is widely used in oil & gas transmission, as well as water supply and drainage pipelines.

Production line parameters:
(1) Steel pipe coverage range: 114mm-4200mm
(2) Processing capacity: ≤250m²/h
(3) Cleaning level: Sa2.5
(4) Materials used: fused epoxy resin powder
(5) Main equipment: steel pipe external rust removal equipment, steel pipe internal rust removal equipment, medium frequency heating equipment, epoxy powder internal spraying equipment, epoxy powder external spraying equipment, recovery device, spray marking equipment, etc.

According to customer demand for the production of different specifications products

Internal & External FBE coating Structure:

Epoxy powder is a thermosetting, non-toxic coating that, after curing, forms a high-molecular-weight cross-linked coating with excellent chemical corrosion resistance and high mechanical properties. The epoxy powder primer forms a continuous coating, providing excellent adhesion to the steel pipe surface through bonding and curing, and exhibiting excellent chemical resistance and cathodic disbondment resistance. The polymer binder bonds the epoxy powder before gelation and also bonds the polyethylene topcoat, combining the three layers together.

Advantages of production line:

1. The internal powder coating line is equipped with an electrostatic spraying system to avoid pinholes in the internal coating caused by spray gun discharge.
2. The dust collection system provides comprehensive coverage, enabling multi-point environmental control.
3. The external powder coating line adopts a closed-loop powder circulation system, improving recovery rate and cleanliness.
4. The dust collection system features a reasonable airflow, and the filter cartridges are highly efficient, low-noise, environmentally friendly, and energy-saving.

Main equipment:

Item	Process Flow
1	Upload pipes
2	pipes sprial conveyor
3	external blasting
4	internal blasting
5	Rust removal
6	intermediate frequency heating
7	FBE powder coating
8	Powder recycling system
9	load down pipe rack

We also can make External 3LPE internal FEB powder coating Line