Automotive side view mirror caps painting line

Automotive mirror caps painting line comes with extremely high standards to maintain a stable and clean operation. Either for full automatic or semi automatic painting line setup, we have to isolate the spray booth area properly with sufficient and smooth fresh air supply where is finely filtered.

Generally, there’re total of three stages for mirror cap painting system. Depends the caps material, we may apply necessary pre-treatment to ensure the quality. Till present, following materials are widely used for mirror caps: ABS, PP, PVC. No special treatment for ABS and PVC, but for PP material, it’s highly advised to spray a promotor in order to get a proven contact & smooth surface

Automotive mirror cap painting line process flow

The full process is the following:

Loading to jig -> pre-heating -> de-dust -> base coat spray -> flash off -> top coat spray -> flash off -> clear coat spray -> flash off -> curing -> unloading

• Cleaning: Thoroughly remove oil stains, dust, and other impurities from the rearview mirror surface using a professional cleaning agent, ensuring no residue remains.
• Sanding: Sand the area to be painted with sandpaper to increase paint adhesion. Pay attention to the pressure and area to avoid damaging the rearview mirror.
• Masking: Protect areas that do not need to be painted, such as electronic components and connecting wires, with masking paper or tape.

Painting

• Primer: Select a suitable primer according to the rearview mirror material, spray evenly, and allow to dry before applying the topcoat.
• Topcoat: Select a topcoat that matches the car body color, apply multiple coats, allowing 1-2 hours of drying time between each coat.
• Baking: High-temperature baking helps the topcoat adhere better to the rearview mirror.

Following machinery parts and specifications are included:

Power	≥150KW(380V,3phase,50HZ)
Chain conveyor system	Aluminium fixture block
	Chain transit unit
	Steel alloy track
	Frequency converters & gear motor
Pretreatment	Pre-heating oven
	De-dust gun and electrostatic brush
Spray booth	Size:3.35*2.5*2.8m
	Stainless steel machine body
	Stainless steel water tank
	Explosion-proof lighting system
	HEAP Filter
	Exhaust fan, Air volume-1200 m³/hr
	3 sets spray robots
Rotation system	Self-rotation system 3 sets
	Jig holder
	Self-rotation motor
	Magiceye sensor
IR & Curing oven	Oven inside size:1.2*1.5*0.7m
	TEM:50-150 degree
	FOD IR heater (1KW each one)
	Mirror stainless steel inner wall
	T50mm rock wood thermal insulation
	OMRON Temperature card
Line control system	PLC touching screen
	Air switch & overload alert
	Taiwan power switch&indicator light
	Taiwan pneumatic elements&Magnetism valve
	Taiwan frequency speed converter
Air supply system	Blowing Rate15000m³/hr
	Machine size:1.2*2.1*1.16m
	T50mm sandwich steel panel  machine body
	Taiwan frequency converter
	Filtering units
Ventilation system	Inlet blower 7.5KW,380v,50HZ
	Outlet blower
	Painting and baking exchange system
	Blower Capacity:15000m³/hr

Service & support

We will provide custom design service based customer requirements according to workshop structure. Basically, each painting line is a custom project and requires teamworking between supplier and client. Then we will produce everything in factory and do full test before delivery. Once the line reached customer factory, we’ll send out engineers for onsite installation and do necessary training/maintenance till customer be able to operate the line.