Pipe Internal Anti-corrosion Coating Equipment

This automated internal coating production line from QINGDAO HUASHIDA MACHINERY CO., LTD is specially engineered for oilfield OCTG (Oil Country Tubular Goods), including tubing and drill pipe inner-wall anti-corrosion protection, covering pipe OD from 73 mm to 426 mm.

The line integrates internal blasting pretreatment, high-pressure airless spraying and curing system to apply liquid epoxy coating uniformly on pipe bore. The cured epoxy coating delivers outstanding adhesion, excellent resistance to H₂S, CO₂ and chloride-containing produced fluids. It lowers internal surface roughness, reduces flow friction, mitigates paraffin deposition, scaling and medium corrosion.

Designed for oil & gas service, this turnkey equipment improves fluid transmission efficiency, protects steel substrate from electrochemical corrosion, extends tubing and drill pipe service life and cuts field maintenance expenses. It supports stable continuous production for oilfield pipe fabrication yards. We also provide FBE internal coating solution and full process customization for different oilfield project requirements.