

Custom-made industrial heat treatment furnaces.
Before any grinding or surface grinding operation, steel blades and parts must undergo heat treatment to achieve the hardness and toughness required for their final application.
Eurotechni is the exclusive representative in France of WMU GmbH — a German manufacturer of custom industrial heat treatment systems since 1994.
🔥 Why is heat treatment an essential step?
A stainless knife steel, such as X46Cr13, cannot be used in its raw state. It must undergo austenitising — heating between 930°C and 1,080°C for a defined period — before being rapidly cooled to transform its crystalline structure into martensite, the hard phase. Tempering is then applied, between 180°C and 500°C, to adjust toughness and prevent brittleness. Without this precise cycle, the blade will not hold its edge, and may break or deform during grinding.
Eurotechni, your WMU contact in France.
Based in Bönen, Germany, WMU GmbH has been designing, manufacturing and installing industrial furnaces for metal heat treatment for over 30 years. Each installation is a custom-built project, sized according to the customer’s specific requirements: material, geometry, production volume and level of automation.
In 2001, WMU founded its sister company GFT (Glüh- und Fuge Technik), which operates several furnace installations on the same site. These facilities are used for process development, R&D and as a backup solution for customers in case of emergency.
Heat treatment solutions for the knife industry – Concepts :
Vacuum chamber furnace with cryogenic treatment and partial pressure.

Vacuum chamber furnace with cryogenic treatment and partial pressure.

Why choose WMU?
Specific expertise.
Heat treatment of knife steels and tool steels.
100% custom manufacturing.
No two furnaces are alike.
All technologies.
Continuous, vacuum, chamber and special-purpose furnaces.
Full automation.
Loading, quenching and in-line tempering.
TÜV certified.
Strict manufacturing standards and reliable production.
After-sales service & retrofit.
SAV et modernisation d’installations existantes.
Applications in industry.
Knifemaking.
Kitchen knives, table knives and folding knives.
Industrial blades.
Food processing, packaging, paper and plastics.
Razor blades.
Et instruments de manucure
Agricultural blades.
Mowers, combine harvesters and brush cutters.
Stamping & cutting.
Press tools, punches and dies.
Steel industry.
Service centers, strip processing.
Agricultural blades.
Mowers, combine harvesters and brush cutters.
Exclusive representative for France.
Eurotechni is the exclusive representative in France of WMU GmbH — a German manufacturer of custom industrial heat treatment systems since 1994.
Need to know more ? Let's talk of your project
For over 60 years, Eurotechni has been supporting craftsmen and manufacturers in their projects.
From supplying steel and lubricants to installing automated machinery, our team puts its expertise at your service.
Put your trust in an expert company that is close to its customers and firmly rooted in the heart of the Auvergne-Rhône-Alpes region.
Need information or a quote? Our team is here to advise and support you every step of the way.