Home Appliance Industry-Smart Protection for Smarter Homes

Automatic Conformal Coating Line for Home Appliance PCBs with Lower Rotary Track & UV Curing

• Full in-line automation: Automatic lifter → Automatic feeding conveyor → Conformal coating machine → Sealing inspection conveyor → UV curing oven → Automatic lifter
• Lower rotary track design: Dual-layer track (upper production, lower return) optimizes workshop space and material flow efficiency
• High-precision conformal coating: ±0.02mm repeatability via servo + ball screw drive, precisely avoiding connectors, control buttons and sensitive home appliance components
• Sealing inspection integration: Sealing detection after coating to ensure coating integrity, no pinholes or leakage for home appliance safety
• UV curing system: Fast, deep UV curing for strong coating adhesion, resistant to high temperature, humidity and household corrosion
• Flexible PCB handling: Electric rail width adjustment (50–450mm), fits various home appliance PCB sizes (refrigerator, washing machine, air conditioner, small home appliance control boards)
• Multi-mode coating: Dot/line/curve/area spraying, eliminates shadow effect for uniform edge coverage on home appliance PCBs
• SMEMA compatible: Standard SMEMA interface for seamless integration with SMT assembly lines (pick-and-place, reflow oven, AOI)
• 24/7 production stability: Industrial-grade design for mass manufacturing of home appliance components

This Home Appliance Industry Automatic Conformal Coating Line is a tailor-made solution for home appliance manufacturers, addressing the reliability and safety demands of refrigerators, washing machines, air conditioners, kitchen appliances and other home appliance control PCBs.

The entire line integrates automatic lifting, feeding, conformal coating, sealing inspection, UV curing and unloading modules, with a lower rotary track for material return, realizing a closed-loop automated production flow. The core conformal coating machine adopts a high-precision servo + ball screw drive system with ±0.02mm repeatability, which accurately applies protective coating only to the required areas of home appliance PCBs, avoiding control buttons, communication interfaces and sensitive electronic components—effectively reducing material waste and eliminating the need for manual masking.

The UV curing oven provides fast, deep cross-linking, quickly solidifying the coating to form a dense protective layer that withstands long-term thermal stress, household corrosion and daily use vibration, extending the service life of home appliances and meeting international safety standards for consumer electronics.

With a standard SMEMA interface, the line can be seamlessly connected to existing SMT production lines. The compact layout (L5640mm × W1350mm) and lower rotary track design optimize workshop space utilization, while the flexible programming (manual teaching + mouse-keyboard input) supports quick product changeovers for multi-type home appliance production. This solution not only improves production efficiency by over 300% compared with manual coating, but also reduces the defective rate to below 0.1%, helping manufacturers meet the reliability and safety requirements of global home appliance markets.