Anodizing Cooling System with Air-Cooled & Water-Cooled Chillers for 18-22°C Standard and 0-5°C Hard Anodizing

This cooling system is specifically designed for aluminum profile anodizing production lines to precisely control the working temperature of oxidation tanks, coloring tanks, and electrophoresis tanks. In the anodizing process, tank temperature directly affects the formation quality and thickness of the oxide film.

Standard decorative anodizing (Type II) typically requires a tank temperature of 18-22°C, while hard anodizing (Type III) requires a low-temperature environment of 0-5°C. This cooling system offers both air-cooled box chillers and high-efficiency full-liquid water-cooled screw chillers to meet the temperature control requirements of different capacities and processes.

• Multi-process Temperature Adaptation: The system can be configured with suitable cooling capacity and chiller units based on process requirements for standard anodizing (18-22°C) and hard anodizing (0-5°C), helping to maintain the hardness and uniformity of the oxide film.
• Multiple Safety Protection Mechanisms: The equipment integrates protection devices such as pump interlock, compressor over-temperature, high/low voltage, phase loss, and water flow protection. These features help reduce equipment failure rates and extend compressor service life.
• Corrosion-resistant Medium Design: For the specific working conditions of anodizing workshops, the system supports pure water or a 15%-25% sulfuric acid bath as the freezing medium, adapting to the cooling requirements of oxidation tanks.
• Flexible Cooling Method Options: Both air-cooled box and water-cooled screw types are available. Air-cooled models are suitable for sites with limited space or insufficient water supply. Water-cooled screw models are suitable for production lines with large cooling capacity requirements and high energy efficiency demands.

In an anodizing production line, the cooling system operates together with the oxidation tank temperature control system and the automatic production line control system. By monitoring the tank liquid temperature in real time, the cooling system circulates and cools the tank liquid and feeds temperature data back to the central control system.

For hard anodizing production lines, a low temperature of 0-5°C must be maintained. This typically requires a high-capacity chiller unit, and its cooling load is much greater than the chilled water demand of standard anodizing and coloring systems. All individual cooling equipment is equipped with a manual control system to support production continuity even if the automatic system malfunctions.