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The GMH Group at a glance.


Competence in Iron Castings

Iron castings have been produced on our site in Zorge since 1870.
Thanks to the constant improvement & development of technically demanding parts, we have become a recognised partner of many renowned iron consumers worldwide.

Approx. 500 employees in Zorge produce yearly up to 50,000 tonnes of complicated castings for the truck and engineering industry as for example exhaust manifolds, cylinder heads, turbine-, transmission-, water pump- and compressor housings, cylinder heads and planet carriers. The wide range of different material grades like cast (EN-GJL) and nodular (EN-GJS) iron, as well as specialist materials such as EN-GJV, EN-GJSX-SiMo and Ni-Resist allows fulfilling all relevant customer specifications. The majority of parts are delivered machined and installation ready.

Within the scope of design support by solidification and form filling simulation, Simultaneous Engineering and Rapid Prototyping the bases for the later standard processes up to the delivery of the ready machined products are tuned together with the customers.