Automatic Powder Coating Line for Automotive Oil Filter Housings

This powder coating production line is specifically designed for automobile oil filter housings manufactured from galvanized steel sheet. The system adopts fully automatic powder spraying, ensuring high efficiency and consistent coating quality.

The spray booth is constructed from PP (polypropylene), offering excellent anti-corrosion performance and durability. Workpieces are transported throughout the line by a monorail floor-mounted conveyor system, providing stable and reliable material handling.

To further enhance coating performance and operational efficiency, the line is equipped with an anti-static powder spray booth and powder recovery system, and the curing oven has been upgraded to meet optimized curing requirements.

Key Features:

Customized Ground Chain Conveyor System

The ground chain conveyor plays a critical role in the production line, ensuring smooth, continuous, and controlled transportation of oil filter housings through each coating stage.

• Designed according to the size, weight, and geometry of the filter housings

• Capable of handling multiple housing types and dimensions

• Provides secure positioning and stable movement during coating operations

Pretreatment Process

Prior to powder coating, the filter housings undergo a pretreatment process that may include cleaning, degreasing, and conversion coating. This stage is essential for improving powder adhesion, coating durability, and long-term corrosion resistance.

Multi-Stage Coating Capability

The production line can be configured to support multiple coating layers, such as primer, base coat, and top coat. The ground chain conveyor ensures seamless transfer between stages, enabling a controlled and consistent coating process.

Powder Spray Booths

Dedicated powder spray booths are equipped with automatic powder spray guns to apply the coating evenly and precisely across all surfaces of the filter housings. The PP booth structure ensures clean operation and long service life.

Powder Recovery & Recirculation System

An integrated powder recovery system captures overspray powder, filters it, and returns reusable material back into the coating process. This significantly reduces powder consumption, minimizes waste, and lowers operating costs.

Curing Ovens

After coating, the workpieces enter the curing oven, where controlled heating causes the powder to melt, flow, and chemically cross-link, forming a strong, uniform, and durable coating film.

Automation & Control System

The entire line is supported by an automated control system that monitors and regulates key parameters such as conveyor speed, powder output, and curing temperature. This ensures stable operation, consistent quality, and high production efficiency.

By integrating a robust ground chain conveyor, advanced powder spraying technology, and efficient recovery and curing systems, this powder coating line delivers high-quality, uniform finishes that enhance both the functional performance and visual appearance of automotive oil filter housings.