Automatic Liquid Spraying & Powder Coating Production Line for Premium Furniture

This fully automatic spray and powder coating line is engineered for automated surface pre-treatment and precision electrostatic powder coating on metal workpieces, specifically designed for high-end furniture manufacturing. The system delivers efficient cleaning and superior decorative coating preparation through advanced spray technology and electrostatic application methods.

Advanced PLC or industrial computer control manages all process parameters including spray pressure, temperature, timing, powder booth negative pressure, electrostatic voltage, and reciprocator stroke. High-end furniture components progress through multiple automated stages including pre-cleaning, main spraying, surface conditioning, moisture drying, automatic powder coating, and high-precision powder recovery according to pre-programmed sequences.

• Full Automation: Complete process automation supports continuous, large-scale production with minimal manual intervention required only for complex irregular areas
• High Precision: Programmable process parameters and powder output control ensure consistent coating thickness and color uniformity across complex furniture frames and hard-to-reach weld joints
• Energy Efficiency & Environmental Protection: Circulation filtration reduces wastewater discharge while high-efficiency powder recovery systems minimize material and energy consumption
• Versatile Applications: Suitable for high-end office furniture, all-aluminum custom home furnishings, premium system doors and windows, and luxury wrought iron furniture

• Nozzles: Fan/cone-shaped stainless steel universal quick-detachable nozzles and high-penetration automatic electrostatic powder gun nozzles for comprehensive coverage
• Spray Piping: Corrosion-resistant PVC/stainless steel pipelines with precision pressure sensors and regulating valves
• Circulation Pumps: Corrosion-resistant vertical pumps supporting continuous bath circulation filtration

• Main Processing Tanks: High-quality PP/FRP construction with partitioned sections for different treatment stages
• Reservoir Tanks: Double-layer insulated construction with high-precision level sensors and automatic online replenishment

• Multi-Stage Filters: Bag filters for coarse filtration to intercept iron filings and impurities in real time

• Conveyor Chain: Extremely smooth-running overhead suspension or accumulating conveyor with variable frequency-controlled speed (0.5-5 m/min)

• Intelligent Powder Coating Zone: PP sandwich anti-static powder booth with cartridge fine filters (≤ 2 μm precision)
• Recovery System: Large-cyclone separator with 96% single-pass separation efficiency for overspray powder recycling

• Heating Methods: Steam heat exchangers / electric heating tubes with PID temperature control accuracy of ±2°C

• Main Control Unit: PLC (S7-1200 series) + large-format touchscreen HMI for intelligent interlocking control
• Sensors: Comprehensive monitoring including flow meters, pH meters, conductivity meters, and electrostatic grounding resistance

• Exhaust System: Low-noise centrifugal fans with environmental exhaust gas treatment units
• Safety Protection: Emergency stop buttons, insulated platforms, explosion-proof electrical cabinets, and automatic fire-extinguishing systems