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The pretreatment system is a critical stage in preparing metal surfaces for powder coating, ensuring optimal adhesion and long-lasting performance. It typically consists of multiple dip tanks and spray stations designed to clean, degrease, and chemically treat metal parts before coating.
During the process, components are immersed in treatment solutions to remove oil, dirt, and rust, while spray sections apply chemicals to condition and etch the surface. This comprehensive pretreatment enhances coating adhesion, improves corrosion resistance, and ensures a consistent, high-quality finish across all treated parts.
| 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. |
Ideal for metal parts in appliances such as refrigerators, washing machines, and air conditioners.
Suitable for steel structures, panels, frames, and various fabricated metal components.
Applied to heavy machinery and industrial parts to improve surface quality and corrosion resistance.
Used for doors, windows, railings, and other building materials requiring durable surface protection.
Ensures thorough cleaning and consistent treatment for optimal coating results.
Enhances bonding strength for long-lasting performance.
Combines washing, degreasing, and chemical treatment in one system.
Designed for continuous production with minimal downtime.
Tailored to your production line, products, and factory layout.
It is a key process that cleans and prepares metal surfaces before coating, removing oil, dirt, and rust while applying chemical treatments to ensure strong coating adhesion.
The system typically includes degreasing, rinsing, phosphating (or other chemical treatment), and drying stages through dip tanks or spray washing stations.
Dip tank systems immerse parts for deep cleaning and are ideal for complex shapes, while spray systems are more efficient for continuous production lines and high throughput.
Yes, the pretreatment line can be fully customized based on product size, production capacity, plant layout, and specific process requirements.
Proper pretreatment enhances coating adhesion, ensures uniform coverage, and significantly improves corrosion resistance and durability.
It is widely used in automotive, home appliances, metal fabrication, construction, and industrial equipment manufacturing.
