Conventional process flow of bumper:
work piece on-line→pre-degreasing→degreasing→wash①→wash②→Pure water washing→Blow→ water Moisture drying→cooling→Handing→Clean、polish→flame treating →Cottrell process→primer spray →levelling property→topcoating →levelling property→Spray finish→levelling property→Curing and drying→Inspection, polishing, inspection→Workpiece Downline
This is an artificial sprayed Venturi  spray room, ground rail type bidirectional horizontal spraying, one spray two bumpers, this equipment has high performance and price ratio. The investment cost of primary coating equipment is low. The oven is heated by liquefied petroleum gas (LPG).