Emergency call box Kitting & Sub-Assembly

The enclosure is manufactured by sheet metal fabrication process. We use cold-rolled steel, laser-cutting the front panel, back cover, side brackets, and other components according to the drawings. To reduce assembly gaps, all parts are produced with a tight tolerance of ±0.1mm. Then, we use a CNC bending machine to form the side panels, that's make it more perfect accuracy.

All components, including sheet metal parts, screws, and the speaker grille, are kitted according to the Bill of Materials (BOM). Every part is labeled to ensure no components are missing or mismatched before assembly begins.

Once parts pass inspection, we start to assemble. We rivet the front panel, back cover, and side brackets together. At the same time, we need to ensure they are tightly connected. The speaker grille is then carefully installed, making sure it is aligned correctly and fastened.

Once the assembly is completed, we will do shot blasting and powder coating. The bright yellow color of the powder coat not only makes the box highly visible but also helps it be weather-resistant.

Each emergency call box is protected using custom-molded foam inserts, to protect it from being destroyed during shipping.