1.Summary Bitumen coating machine, an equipment, paints the inner and outer surface of the pipe automatically. The quality of bituminous coating has completely met the ISO4179 corrosion resistant standard. 2.Equipment component It is composed of driving and drive ejection-pushing unit, spay-painting carriage, upraising device, conveying chain link, rail beam, spray-painting system, hydraulic system, electrical control system. 3.Technical characteristics 3.1The machine shall be carried out automatically with high productivity. 3.2The bituminous coating is combined with the pipe body firmly, the surface of which is clean without bubble. 3.3The thickness of bituminous coating shall be controlled strictly. 3.4It is used in a wide range.