Anodizing machine

Anodizing machine for aluminum:

Characteristic of pure aluminum:

Al is amphoteric metal, which is chemically active and easy to generate oxide in air, while aluminum oxide can inhibit further oxidation, the higher purity of aluminum, the more uniform film, and more excellent corrosion resistance. Easy to act with reducing agent. But anti-corrosion to oxidizing agent. Aluminum is passive state to concentrated nitric acid.

A Definition:

Aluminum in the ambient atmosphere will produce a layer of oxide film. Aluminum substrate attached to anode current to generate hard and transparent surface layer in electrolyte, this electro chemical reaction is called as “anodizing”, which is finished by anodizing machine.

B Features of anodizing:

Transparent, close to the glass; Insulation, anti-static; Changeable color appearance; Fully integrated with the aluminum surface and does not peel off. NOTE: Passivation is made for stainless steel surface treatment, as the same purpose to increase the corrosion resistance.

C Anodizing machine application functions:

Increase corrosion resistance; Increase abrasion resistance; Improve the adhesion of the substrate and coating; Provide an insulating surface; Insulation; Protection polishing surface and machined surface; Improve appearance. Note: After the oxidation can be painted, but generally do not suggest to do this process, because it is uneconomical. Usually to realize color when oxidation, basically except white, other colors are available by this deal, and it will not affect the film thickness (or the thickness of the substrate). These are functions of anodizing machine.

D Anodizing machine technical processes:

Anodizing machine

Anodizing machine

In briefly, anodizing machine divided into 2 big steps: Pre-treatment and After treatment.

Pre-treatment: Include degreasing, etching, chemical polishing, etc. Oxidation: once the surface is prepared, the oxidation film is built. After treatment: porous anodizing film can be colored in this stage. Sealing.

7 replies
  1. Hosting Deutschland
    Hosting Deutschland says:

    What s it going to cost? How much space do I need? What environmental hassles will I encounter? How steep is the learning curve? Exactly what is anodizing ?

  2. Khaled
    Khaled says:

    Dear Mr. Chen,
    We manufacture surgical implants plates and screws from S.S. 316 LVM kindly quote me for electropolishing machine with rectifier with fine tunning, heater, electrolyte and tank 100cm L x 60cm W x100cm height
    Also need a small size rectifier 200A 12V for coloring Titanium.

  3. Chen
    Chen says:

    Hi Michael Oi
    Thanks for your inquiry of our anodizing machine.
    But, we’d like to know more details.
    Such as:
    Workpiece sizes, pictures? Capacity requirements? Do you want auto plant or manual plant? etc..
    Looking forward your further information.
    Best regards!


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