Sheet metal, tube and 1 to 500 mm thick profile work.

« Boilermaking is the art of understanding metal in order to shape it to one’s will. This can only be learned in contact with the material ».

Thanks to decades of experience, the boilermakers at Graux have mastered the art of thin and thick sheet metal work. Their precision can go further than the most rigorous ISO 2768 tolerances, without the need for machining.

Our fleet of recent machines allows for digitally-controlled complex folding on a length of 4500mm, the straightening of 16m profiles and 2000 mm intern rolling. Qualified partners enable us to push these boundaries even further.

The manufactured sets up to 12.6 tons and 5000 x 5000 mm can be handled.

The materials worked include carbon and stainless steel, including the refractory and Duplex ones, aluminum, and more specific metals such as high-strength steel, Inconel and anti-abrasive steel.


Hydraulic folding press CNC 5 axis CNC ; 320 T; L: 4500 mm

2 Roll bending machines L: 2000 mm TH: 8 mm
2 Vertical presses with mobile jack 150 T; passage 1570 mm
1 horizontal press for profile straightening 180 T; length 32 m

16 MIG welding stations
12 TIC welding stations

Our Boilermakers at work

Discover our other areas of expertise


Turning, milling and reaming from the smallest
to the largest dimensions
More info


Mechanical, hydraulic, pneumatic and
electrical assembly in workshop
More info

Qualified welding

Quality welds, mastered
and controlled
More info

Mechanical welding

Welded and machined sets
up to 6500 mm long and 12.6 t!
More info

Surface treatments

Liquid painting, scouring-passivation
and browning
More info

Dimensional control

3D control with Faro type arm
More info

Technical support

Mechanical engineers at your disposal!
More info

Looking for a highly qualified manufacturer?

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

Contact us



Zone industrielle, 3
Belgique – Europe

VAT (BE)-(0)421.983.751
RPM Charleroi
+ 32 (0)60 51 25 85

+ 32 (0)60 51 25 90

Opening hours

Monday to Thursday: 7H30-12H00
and 12H30-16H30
Friday: 7H30-12H30