This automated system efficiently applies protective anodized coatings to aluminum products using advanced PLC controls, robotic handling, and computerized monitoring for consistent, high-quality results.

• Degreasing: 1 tank (Free sulfuric acid 180±30 g/l)
• Alkaline Etching: 2 tanks (Free alkali 40-60g/l, Al³⁺ 30-120g/l)
• Neutralization: 1 tank (Free sulfuric acid 180±20g/l)
• Anodizing: 3 tanks (Free sulfuric acid 140-180g/l, Al³⁺≤20g/l)
• Colouring: 1 tank (Stannous sulfate 3-8g/l, Free sulfuric acid 15-25g/l, PH 0.8-1.2)
• Medium Temperature Sealing: 1 tank (PH 5-6.5, Nickel ion 0.8-1.3g/l, Fluorion 0.3-0.7g/l)

• Capacity: 6 racks per tank
• Treatment Time: 2-5 minutes

• Capacity: 12 racks across 2 tanks
• Treatment Time: 3-15 minutes

• Capacity: 6 racks across 3 tanks
• Current Density: 130A/m²
• Process Time: 30 minutes
• Average Anodizing Layer: 10.81µm

• Annual Treatment Area: 308,340 m²
• Monthly Output: ≥750 tons
• Power Rectifiers: 3 units at 15000A for anodizing, 1 unit at 8000A for coloring

This semi-automatic production line utilizes an industrial control computer (IPC) for monitoring and PLC for execution. The system operates in semi-automatic mode with manual override capability, featuring crane automation for precise slot positioning and temperature control meeting process requirements.