Steel pipe diameter：
φ76～ φ1219mm
Derusting grade：
Sa2.5 级
Profile Depth：
50～100μm
Cleaning ability：
≥400m2/h

Heat pipes to a temperature of 190 ~ 230 ℃, to prepare for the FBE coating and anticorrosion coating. Compared with traditional boiler heating system, pipes are heated evenly, clean and green.

USA Nordson Corporation automatic spraying system
Steel pipe diameter：
φ76～ φ1016mm
Coating thickness：
40~800μm
Spray gun number：24pieces
Powder spraying capacity：
≤400g/min/piece

Winding adhesive and polyethylene to the surface of gel state epoxy coating. Composed by a material handling system, AD extrusion and winding system, PE extrusion and winding system, extrusion die and its control system, guide roller system, etc.

Composed by cooling tower, water pump, spray cooling room, etc. By combination of quenching and slow cooling process, coated pipes are cooled to below 60 ℃. Water temperature drops through cooling tower and is recycled. No waste water discharge.

PE/PP coating is removed at pipe ends, suitable for pipeline welding construction. (take GB/T23257 for example, leave 100～150mm long for both ends, end face shall form a chamfer not larger than 45 degrees)