The Pretreatment System is a critical stage in the powder coating production line, designed to clean, degrease, rinse, and chemically treat metal surfaces before coating. By removing contaminants such as oil, dust, rust, and oxide layers, the system significantly improves coating adhesion, corrosion resistance, and overall finishing quality.
Suitable for steel, galvanized steel, aluminum, and various metal workpieces, the pretreatment system can be customized according to product specifications, production capacity, and coating requirements.
1. Improve Coating Adhesion. Effectively removes oil, dust, rust, and surface contaminants to create an ideal foundation for powder coating.
2. Enhance Corrosion Resistance. Chemical conversion treatment forms a protective layer that improves corrosion resistance and extends product lifespan.
3. Stable Surface Quality. Ensures consistent surface cleanliness and treatment quality for superior coating performance.
4. Automated Processing. Integrated with conveyor systems for continuous operation, improving production efficiency and reducing labor costs.
5. Customizable Solutions. Available in spray-type or dip-type configurations to meet different product and production requirements.
6. Multi-Stage Treatment Process. Supports customized process combinations such as: Degreasing,Water Rinsing,Surface Conditioning,Phosphating,Passivation,Drying
7. Excellent Cleaning Performance. High-pressure spray nozzles provide uniform coverage and effective cleaning of complex-shaped workpieces.
8. Improved Coating Quality. Creates a clean and active metal surface, improving powder adhesion and coating durability.
9. Energy-Saving Design. Water recycling and heat recovery systems reduce water consumption and operating costs.
10. Corrosion-Resistant Construction. Made from stainless steel or specially treated materials for long-term durability in harsh chemical environments.
11. Intelligent Control System. PLC automatic control enables precise management of temperature, spraying time, liquid level, and conveyor speed.
12. Flexible Configuration. Available in manual, semi-automatic, and fully automatic configurations according to production requirements.
Specifications:
Process | Types | Function |
Pretreatment System | Spraying type, Submarine type, Dip tank Type, Shot/Sand blasting | Save manpower, improve the powder coating performance |
Drying after spraying | 10 minutes in drying oven | |
Powder coating System | Cyclone powder coating booth/Filter recovery powder coating booth/Manual powder coating machine | less than 3 colors color changing time: 15-20 min |
Curing System | Bridge type curing oven, Tunnel type curing oven, Box type oven. | Temperature difference less than 3 degree, save energy, high safety. |
Conveyor System | Manual conveyor, Automatic conveyor, Power and free conveyor. |
PRODUCT APPLICATIONS
· Home Appliance Manufacturing
Ideal for metal parts in appliances such as refrigerators, washing machines, and air conditioners.
· Metal Fabrication
Suitable for steel structures, panels, frames, and various fabricated metal components.
· Machinery & Industrial Equipment
Applied to heavy machinery and industrial parts to improve surface quality and corrosion resistance.
· Construction & Architectural Components
Used for doors, windows, railings, and other building materials requiring durable surface protection.
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