The production line starts with the spraying and hanging process. In this step, operators or automated equipment accurately install the door panels to be sprayed on special hangers. The design of the hanger fully considers the shape and size of the door panels, ensuring that the door panels remain stable during the hanging process and facilitate subsequent spraying operations. At the same time, the hanging process must strictly follow certain operating specifications to ensure that there is a suitable spacing between the door panels to avoid mutual collision or obstruction during the spraying process, thereby ensuring the uniformity and integrity of the coating.

The spraying process is one of the core parts of the production line. Advanced spraying equipment and technology, such as electrostatic spraying, powder spraying or liquid spraying, are used to spray the paint evenly on the surface of the door panel according to the material and surface requirements of the door panel. These spraying equipment have high-precision spraying control functions and can accurately adjust the spraying pressure, flow rate and atomization effect to achieve high-quality coating coverage. At the same time, in order to ensure the cleanliness and stability of the spraying environment, it is usually equipped with a professional ventilation and air purification system to effectively reduce the impact of dust and impurities on the spraying quality.

After spraying, the door panels enter the hanging process. The hanging operation needs to be cautious to prevent the surface of the sprayed door panels from being damaged. The operator removes the door panels from the hanger and conducts a preliminary quality inspection to check whether there are any spraying defects, such as spray leakage, sagging, particles, etc. For minor defects found, they can be repaired in time to ensure that the spraying quality of the door panels meets the standard requirements.

The last step is the packing process. The door panels that have been sprayed and quality inspected are transported to the packing area in an orderly manner. In this area, the door panels are packaged using appropriate packaging materials and packaging methods according to their size and packaging requirements. Foam boards, bubble bags and other cushioning materials are usually used to protect the door panels to prevent collisions and scratches during transportation and storage. Then, the packaged door panels are neatly packed into the packaging boxes, and the boxes are sealed and labeled. Sealing ensures the sealing and firmness of the packaging boxes, and the labels indicate the relevant information of the door panels, such as product model, specifications, quantity, production date, etc., to facilitate product identification and traceability.