Details
Equipped with electrostatic rotary atomizer, full-process temperature & humidity linkage control, multi-stage gradual drying and professional waste water treatment system, this line delivers uniform film thickness, excellent adhesion and stable appearance quality. It features ultra-low VOC emission, high safety and wide substrate compatibility, becoming the mainstream eco-friendly coating solution for plastic, metal and wooden workpieces in response to increasingly strict environmental regulations.
Core Differentiation
- VS Solvent-based Paint Line: Core design for water-based paint's slow drying feature; adopts strict humidity control and anti-rust/anti-corrosion structure. Low fire risk and nearly zero VOC emission, fully compliant with stringent environmental policies.
- VS UV Paint / Coating Line: Uses conventional thermal drying instead of UV instant curing, no need for UV lamps and special UV coatings. Supports full range of water-based color paints, topcoats and primers with lower material threshold.
- VS Fixed-Gun Paint Shop: Adopts high-efficiency electrostatic atomization system for higher paint transfer efficiency and finer spraying effect. Suitable for medium and high-grade appearance parts, not limited to simple regular workpieces.
- VS General Plastic Painting Line: Upgrades fluid pipeline, spray guns and booth materials against water-based paint corrosion; optimizes multi-stage slow drying process to avoid blistering, sagging and whitening defects unique to water-based coating.
Feature And Advantage
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Standard Process Flow
Loading → Pre-cleaning & Dewatering → Static Elimination → Electrostatic Dust Removal → Water-based Primer Spraying → Multi-stage Humidified Leveling → Intermediate Drying → Water-based Topcoat Spraying → Secondary Leveling → Gradient Thermal Curing → Cooling → Inspection & Rework → Unloading
| Process Section | Parameter Item | Technical Specification | Remarks |
|---|---|---|---|
| Pretreatment System | Cleaning & Dewatering | Neutral water-based cleaning 40–50°C; hot air dewatering 55–65°C | Remove dirt and residual moisture, prevent paint blistering |
| Static Elimination | Ion air system, residual static ≤200V | Improve electrostatic adsorption effect of water-based paint | |
| Spray Booth (Anti-corrosion Type) | Temperature & Humidity Control | 22±2°C, 65±5%RH constant control | Key parameter for water-based paint, avoid rapid surface drying |
| Booth Material | Stainless steel & anti-corrosion composite plate | Resist long-term erosion of water-based paint | |
| Negative Pressure | -12 ~ -22Pa, top air supply & side exhaust | Prevent paint mist diffusion | |
| Spraying System | Rotary Atomizer | 30000–70000rpm, 60–100kV electrostatic voltage | Ultra-fine atomization for water-based paint |
| Paint Supply Pipeline | Full stainless steel circulation pipeline, anti-sediment stirring | Prevent water-based pigment precipitation | |
| Film Thickness | Primer 16–24μm, Topcoat 22–36μm, tolerance ±3μm | Uniform coating without sagging | |
| Transfer Efficiency | ≥83% | Higher material utilization than ordinary water spray guns | |
| Multi-stage Leveling Zone | Working Condition | 23–28°C, 60–70%RH, 4–8min | Slow flow leveling, eliminate sagging and orange peel |
| Gradient Drying & Curing | Pre-drying Stage | 60–70°C, remove surface moisture | Avoid internal steam causing coating whitening |
| Main Curing Stage | 80–105°C hot air circulation, temperature uniformity ±2°C | Complete deep curing of water-based paint | |
| Conveying System | Conveyor Type | Overhead chain / skid conveyor | Full sealed structure, anti-rust treatment |
| Running Speed | 4–14m/min stepless adjustment | Match different production output | |
| Environmental Treatment | Paint Mist Treatment | Water circulation + multi-layer filter, efficiency ≥98.5% | Special purification for water-based paint mist |
| Waste Water Recycling | Circulating filtration & sedimentation system, reusable | Reduce discharge and operation cost | |
| Overall Noise | ≤77 dB(A) | Meet workshop health standards |
- Full-line Anti-corrosion & Anti-rust DesignAll pipelines, spray guns, booth interior and conveying parts adopt stainless steel and anti-corrosion materials, specially against the corrosiveness of water-based paint. Effectively extend equipment service life and reduce daily replacement of accessories.
- Dedicated Temperature & Humidity Linked Control SystemReal-time linkage adjustment of temperature and humidity in spraying and leveling zones, solving typical defects of water-based paint such as surface whitening, pinholes, sagging and slow drying. Ensure stable coating quality all year round regardless of seasonal climate changes.
- Circulating Paint Supply with Anti-precipitation FunctionContinuous stirring and circulating delivery system keeps water-based pigments and fillers evenly distributed, avoiding layering and sedimentation during long-term continuous production, and maintaining consistent color and film performance.
- Multi-stage Gradient Drying TechnologyAdopts segmented low-temperature pre-drying + medium-temperature deep curing mode. Gradually evaporate moisture inside the coating to prevent steam expansion, which is the core technology to solve blistering and peeling problems of water-based coating.
- High Safety & Low Environmental RiskWater-based paint uses water as solvent, with no flammable volatile substances. The whole line reduces fire and explosion hazards. Equipped with closed waste water circulation system, realizing clean production.
- Strong Substrate & Color AdaptabilityCompatible with water-based solid color, metallic color, matte paint and functional protective paint. Applicable to plastic, metal, aluminum alloy and wood materials, covering most general and medium-grade appearance coating demands.
Honglichang Serve
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Pre-sales Service
Provide customized process design, workshop layout and humidity control scheme according to workpiece type, water-based paint formula and production capacity. Offer technical proposal, construction drawing and detailed budget, and arrange factory inspection.
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After-sales Implementation
Complete on-site installation, pipeline debugging and full-line linkage test. Optimize drying and humidity parameters targeting customer's specific water-based paint to reach qualified coating effect.
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Technical Training
Free on-site training covering equipment operation, temperature/humidity adjustment, daily anti-corrosion maintenance and common defect troubleshooting for operators and maintenance staff.
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Warranty & Follow-up Service
1-year full-line warranty, 2-year warranty for core control and atomization components. 24-hour remote technical support, regular return visit and process optimization guidance. Supply original anti-corrosion accessories and filter consumables at favorable price for a long time.
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Upgrade Service
Support production line capacity expansion, spraying station addition, drying section reconstruction and environmental system upgrade to adapt to new workpieces and updated environmental standards.
Certificate
- National High-Tech Enterprise: Leaders in innovative automotive coating systems.
- ISO 9001 Quality Management: Consistent, top-quality PP ABS spray painting.
- ISO 14001 Environmental Management: Eco-friendly car parts paint shop solutions.
- ISO 45001 Occupational Health: Safe operations for every automotive coating line.
- Three National Invention Patents: Cutting-edge PP ABS spray painting tech.
- Seven Software Copyrights: Smart automation for precise automotive polymer coating.
- 57 Utility Model Patents: Practical innovations for car coating efficiency.
- General Contracting Qualifications: Expertise in mechanical and environmental engineering.
FAQ
Q1: What is the biggest difference between water-based paint line and solvent-based paint line?
A1: This line focuses on humidity control, anti-corrosion structure and multi-stage slow drying, to adapt to water-based paint's characteristics of slow moisture evaporation and corrosiveness. It is safer and more environmentally friendly, while solvent lines prioritize volatile solvent exhaust and fire prevention.
Q2: What common defects can this line avoid for water-based coating?
A2: It effectively solves typical problems such as surface whitening, blistering, sagging, pinholes and pigment precipitation, which are easy to occur in ordinary spraying lines for water-based paint.
Q3: Can this line use mixed types of paint?
A3: It is professionally optimized for water-based paints. Frequent switching between water-based and solvent-based paints is not recommended, to avoid pipeline corrosion and cross-contamination.
Q4: What materials are applicable for this production line?
A4: It works for ABS, PP, PC/ABS and other plastics, iron, aluminum alloy and other metal parts, as well as wooden products. It covers most common industrial coating substrates.
Q5: Is the production speed slower than solvent-based lines?
A5: Water-based paint needs longer leveling and drying time. We adopt optimized gradient drying design to narrow the gap, and the overall production efficiency meets the requirements of large-volume mass production.
Power up your production with a smart painting line that works. Reach out to Honglichang for a custom solution and a free consultation. Let's talk!
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