Anodizing Plants

The design, manufacturing, supply and installation of automated aluminium anodizing lines

Galvatek supplies automated anodizing systems mainly to the aviation and aluminium industries. In the aviation industry, automated aluminium surface treatment plants are used for the chemical treatment of challenging aircraft parts and frame components. Aluminium anodizing plants can also be combined with etching, cleaning and non-destructive testing (NDT) processes. In the aluminium industry, the process often also includes electro-coloring for the production of aluminium profiles and components.

Aluminium anodizing process with CAA, SAA, BSAA, TSAA and PAA

Galvatek’s anodising plants for the aviation industry are mainly used for high-grade aircraft parts, aerostructures and other aluminium components. Anodizing plants for the aluminium industry are typically designed for the high-capacity anodizing of profiles.

TSA to replace toxic substances in aluminium anodizing

Case Purso: Automated aluminium anodizing and electrolytic coloring plant

Effluent treatment plants for anodizing treatment rinse waters

Anodizing is an electrolytic passivation process that is used to increase the thickness of the natural oxide layer on the surface of metal parts. Aluminium alloys are anodized to increase corrosion resistance and surface hardness, as well as to allow dyeing (colouring), improved lubrication, or improved adhesion. Different anodizing processes include hard anodizing, chromic acid anodizing (CAA), sulphuric acid anodizing (SAA), boric sulphuric acid anodizing (BSAA), tartaric sulphuric acid anodizing (TSAA) and phosphoric acid anodizing (PAA), all of which are made possible by Galvatek anodizing plants.

Automated anodizing line for extruded aluminum profiles. Plant includes ventilated transporters with tilting capability.
A typical view to automated anodizing process and rectifiers.
Aluminum anodizing plant with cascade rinse steps which saves water usage and improves rinsing result.

Anodizing plant functions, technical solutions

Galvatek aluminium finishing plants are typically fully automated turnkey deliveries that utilise our latest technologies in ventilation, multiple loading/unloading stations, and energy-efficient solutions. Our state-of-the-art Galcont control system ensures extremely accurate film thicknesses. Anodizing tanks are typically supplemented by degreasing, rinsing, etching, desmut, and hot sealing, as well as electro coloring tanks/stations. Galcont control system also constantly records individual treatment and alarm history, which helps our customers in ther anodizing process certification, such as NADCAP approval used in the aviation industry.

Galvatek anodizing plants are always scaled and designed according to the needs of the customer and the maximum product dimensions in the treatment process. Galvatek has delivered tanks up to 15 meters in length, especially for aerostructure applications. Typically the tank length is 9 meters or less for aluminium profiles or other anodized aluminium components.

Tartaric sulphuric acid (TSA) anodizing

Tartaric sulphuric acid (TSA) anodizing provides excellent corrosion protection and paint bonding properties for a wide range of aluminium alloys. TSA anodizing can be used to replace the use of hexavalent chromium in chromic acid anodizing (CAA) processes. TSA anodizing is an approved method that complies with European Union REACH legislation. Further information about TSA anodizing is available on the Airbus website.

In recent years Galvatek has been active in several new TSA plant projects, as well as in upgrading our installed base to TSA.

Featured technical innovations

Automation - Galcont™

Galvatek's Galcont™ process automation system has been constantly developed and improved for already four decades to meet ever-increasing demands in surface treatment plant control.

Ventilation System - Candovent™

Galvatek’s Candovent™ ventilation system allows placing the surface treatment line anywhere in the production layout, without the need to build an encapsulated room around it.

Energy Efficiency and Environmental Friendliness

Every aspect of Galvatek plants has been optimized with energy efficiency and environmental friendliness in mind.

Want to hear more? Contact us and find out what we can do for you.

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Jarno Virtanen

General Manager | Aviation
+358 3 526 6677