After-sales Service Guide Equipment Installation and for Customized Powder Coating Line with Robot Polish Equipment

Production Line Workflow

1. Welding Area Loading

A robotic manipulator places the cabinet body and door panel onto two independent work positions.

2. Metal Grinding

• A robotic grinding unit polishes the weld seams on the cabinet body.

• Door panel weld seams are manually polished, followed by full-surface manual sanding to ensure a smooth finish.

3. Phosphating Solution Treatment

Operators manually wipe the surfaces with a phosphating agent to improve coating adhesion and corrosion resistance.

4. Moisture Drying

The treated workpieces are dried at 40–50°C to remove any remaining moisture.

5. Manual Putty Application

Technicians apply putty to fill surface imperfections and ensure surface flatness.

6. Putty Drying

The putty layer is dried at 40–50°C to achieve proper hardness.

7. Manual Putty Sanding

After curing, the putty is manually sanded to obtain a uniform, smooth finish.

8. Workpiece Accumulation

Finished parts are accumulated—approximately 100 sets—before entering the next stage.

9. Mechanical Loading Transfer

The accumulated workpieces are automatically transferred to the next process via mechanical loading equipment.

10. Dust Removal

Operators use electrostatic dust blow guns to remove dust and fine particles from the surface.

11. Powder Coating Application

A combination of automatic spraying and manual reinforcement is used to ensure full and even coverage.

12. Powder Curing

The coated parts are cured at 200°C for 18 minutes, allowing the powder coating to fully crosslink and solidify.

13. Air Cooling

After curing, parts undergo forced air cooling to stabilize the coating.

14. Manual Installation of Casters

Casters are manually attached to the finished cabinet bodies.

15. Assisted Downloading to AGVs

Using human–machine collaborative handling, the completed units are placed onto AGV carts for transfer to the next workstation.