A roller coating production line is an automated coating equipment that uses coating rollers to evenly transfer paint to the surface of a workpiece. A curtain coating production line, on the other hand, is an automated coating equipment that uses a continuous "liquid curtain" of paint to cover the surface of a workpiece.

In industrial production, a standard coating production line typically includes the following main process stages: 1. Workpiece conveying system 2. Surface pretreatment system 3. Drying and preheating equipment 4. Spraying equipment 5. Leveling zone equipment 6. Curing and drying equipment 7. Cooling system 8. Environmental protection equipment 9. Control system