Surface treatments

Liquid painting, scouring-passivation and browning

The finishes of our sets are made mainly with spray painted liquid paint in our 4.5*4.5*15 m box. We usually create a preparation using 2.5 sand grain sandblasting and a manual degreasing. Upon demand, we also specifically control the thickness and the adherence of the deposited layers.

In order to maintain the anti-corrosion property of the stainless-steel surfaces that have been worked, we reactivate the chromium oxide layers by scouring and passivation.

We also have an installation allowing the temporary protection of the carbon steel parts from oxidation, using a browning method at ambient temperature.

Our team at work

Discover our other areas of expertise


Sheet metal, tube and
1 to 500 mm thick profile work
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Turning, milling and reaming from the smallest
to the largest dimensions
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Mechanical, hydraulic, pneumatic and
electrical assembly in workshop
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Qualified welding

Quality welds, mastered
and controlled
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Mechanical welding

Welded and machined sets
up to 6500 mm long and 12.6 t!
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Dimensional control

3D control with Faro type arm
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Technical support

Mechanical engineers at your disposal!
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Looking for a highly qualified manufacturer?

Graux provides expertise in the manufacturing of subsets and sets of special machines.

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