Selection of Anodizing Rectifiers

2026.01.20

I. What is Anodizing?

Anodizing is an advanced electrochemical surface treatment process that forms a dense, wear-resistant, and corrosion-resistant oxide film on the surface of a metal (mainly aluminum and its alloys) through electrolysis. This oxide film is not an external coating but grows from the metal substrate itself, thus possessing extremely strong adhesion and durability.

II. Main Application Areas of Anodizing

Anodized aluminum profiles are widely used in many industries:

  • Architectural Decoration: Curtain walls, doors and windows, ceilings, curtain wall systems
  • Transportation: Automotive trim parts, marine fittings, aerospace components
  • Electronics and Electrical Appliances: Radiators, housings, control panels
  • Consumer Goods: Furniture, sports equipment, kitchen utensils
  • Industrial Equipment: Mechanical parts, tooling fixtures, corrosion-resistant components

III. Rectifier: The Core Equipment of the Anodizing Process

Why is the rectifier so important?

The rectifier is a key device that converts alternating current (AC) into stable direct current (DC), and its performance directly determines the quality of the oxide film. Throughout the anodizing process, the rectifier needs to operate continuously for 24 hours and must meet the following core requirements: High-precision output: Voltage and current stability within ±1%

  • Reliable protection mechanisms: Multiple protections against overcurrent, overheating, and phase loss
  • Precisely adjustable: Current density can be precisely adjusted (typically 1-6A/square foot)
  • Corrosion-resistant design: Adaptable to the humid and acidic environment of electrolysis workshops
  • Rectifier Technical Features
  • Our anodizing rectifiers have the following technical advantages:
  • High-efficiency conversion: Rectification efficiency of over 95%, significant energy savings
  • Intelligent control: Equipped with a PLC or digital control system for real-time monitoring of process parameters
  • Flexible configuration: Input and output voltage and current can be customized according to customer needs
  • Long-life design: Utilizes high-quality components with a design life of over 10 years

The success of the anodizing process is inseparable from high-performance rectifier equipment. As a leading rectifier manufacturer, we offer a full range of anodized rectifiers from 5kW to 500kW to meet the needs of Type II, Type III and special oxidation processes.

Contact us now for professional technical solutions and quotes to take your anodizing process to the next level! https://www.ly-rectifier.com/app_cat/aluminum-anodizingcoloring/

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