Our experts have been producing and continuously further developing rotor retaining rings for more than a century - a store of experience that has made us the leader on the world market. By withstanding the enormous forces that occur in power generation, our rotor retaining rings serve as the guarantors of safety in turbo-generators.

The aerospace industry knows it can rely on all of our strengths, and above all on our high-precision development of technologies and materials.

Versatile use of steel in the energy sector. Steel is the ideal material for a wide range of applications. We take advantage of this unique feature of steel to create value for companies active in the - fossil and renewable - energy sector.

Around the world, peeled bright steel supplied by GMH Gruppe forms the basis for high-tech components. At all our locations, our specialists work together on meeting our customers' requirements precisely – from high-quality feed material up to and including ready-to-use components.

We at GMG Gruppe provide our customers with perfect solutions in iron and steel casting – from the patterns all the way down to shipment of the castings - for their entire value chains. With our know-how and expertise concentrated at two locations in Germany, we meet even the most complex and specific customer requirements.

CNC components are distinguished by the ultra-high accuracy of their production. High-precision control technology enables us, particularly in the case of complex geometries, to produce work exactly to the customer's requirements – and with absolute accuracy of repetition.

GMH Gruppe tool steels form the basis for high-grade products used in a wide range of highly demanding applications. You will find our steels in use wherever maximum quality, long service-life and expert service are essential.

Whether it's a high-speed train or a tram: together with our customers we find the best solution to assure maximum safety and maximum reliability.

Close cooperation assures optimum solutions. From new materials to large components: together with our customers, we set course for new horizons every single day.

Whatever the industry, whatever the sector - our experts will find the optimum solution that meets its every need and every requirement.