Certified to ISO 3834 level 2 (the highest level of the standard), GRAUX guarantees the highest quality welding.

In addition to their practical experience, each welder is certified according to the ISO 9606-1:2012 standard on numerous welding procedures. Whatever the type, position, metal, thickness, filler metal, you will always find a qualified welder at GRAUX.

On request, our international welding specialist (IWS) will draw up a welding booklet specific to your project, including welding plans, complete traceability of materials, traceability of filler metals, welding procedure qualifications (QMOS / WPQ), welding procedure demonstrations (DMOS / WPS), non-destructive testing (PT; MT; UT) or destructive testing.

The Project Managers are also welding coordinators in order to carry out in-process and end-of-production controls on all your welds.

GRAUX meets specific production requirements and specifications in the vacuum, nuclear and medical sectors. Production equipment and expertise that perfectly complements our production line and capabilities. Rare assets on the market.

A new room dedicated to assemblies requiring a clean environment and special precautions completes our production infrastructure.

It meets the quality requirements imposed during the assembly of machines and assemblies dedicated to the vacuum, nuclear or medical sectors.

In addition, for parts subject to vacuum, we can now perform all leak tests at our production site. The customer is thus assured of the minimum tightness achievable on site. This vacuum level can be further improved after a longer degassing.

Our engineers and operators have been specially trained in vacuum techniques and are certified for technical control and leak detection.

GRAUX’s machine park is unique in the region.

GRAUX is equipped in-house to manufacture all components of a machine, from the small roller axle in turning to the milling of a welded frame of 8000mm long, 3100mm high and 1600mm deep.

The accuracy depends on the structure of the part but can be as low as 0.02mm/m.

In large dimensions, 4 milling machines from 6500 to 8000 mm, 1 boring machine and 1 horizontal lathe of Ø930mm are available to realize your non-standard parts.