Surface Treatment

The Coating Shop incorporates a fully automated line for chromic acid anodizing and chromating. The capabilities of the line are as follows: non-destructive tests, vapour degreasing, sodic deoxidizing surface preparation, chromic anodizing, sealing, chromating treatment with Alodine 1200.

The following processes are accredited by Nadcap: passivation of stainless steels, sulfuric acid anodizing of titanium, manganese phosphating, chromating, chromic acid anodizing.

Surface treatment of aluminium and its alloys

Engineering Process
Type of treated materials
Component Dimensions (m)

Chrominh acid anodizing

Aluminium and its alloys
9.5 x 2.0 x 1.0
Chromating (Alodine treatment)
9.5 x 2.0 x 1.0
Sulfuric acid anodizing
5.8 x 0.6 x 2.4
Chemical milling
6.5 x 0.7 x 1.6
Hard anodizing
1.0 x 0.7 x 1.6

Surface treatment of steel, copper alloys and titanium

Engineering Process
Type of materials
Max Component Dimensions (m)
Technical chromium plating
Low-and medium- alloy steel, copper, copper alloys
1.9 x 0.6 x 1.0
1.4 x 0.6 x 1.0
Decorative chromium plating
Low - alloy steels, copper and copper alloys
1.9 x 0.6 x 1.0
1.4 x 0.6 x 1.0
Cyanide-alkaline and amino-chloride
Low - and high - alloys constructional steel
1.4 x 0.6 x 0.8
1.9 x 0.6 x 0.8
Passivation of stainless steels (Low - and high - alloys)
Stainless steels
1.1 x 0.7 x 0.8
Anodising of titanium

Titanium and titanium alloys

0.7 x 0.6 x 0.7
Silver plating
Copper, copper alloys, stainless steel
0.9 x 0.6 x 0.7
Zinc phosphating

Low and medium alloy steels, constructional steel (less than 6% Ni+Cr+Mo)

1.4 x 0.6 x 0.7
Manganese phosphating
Constructional steel
1.4 x 0.6 x 0.7

Spray painting:  max. dimensions of parts [m]  10x4x1,