ZOLLERN GmbH & Co. KG is one of Germany’s oldest industrial family enterprises, tracing its origins back to 1708. Headquartered in Sigmaringendorf-Laucherthal, the group operates across five core business divisions: drive technology, investment casting (Feinguss), sand casting and forging (Sandguss und Schmiede), steel profiles, and bearing technology.
With approximately 2,400 employees globally and production sites across Europe, the Americas, and Asia, ZOLLERN supplies high-precision cast and engineered metal components to demanding global industries, including aerospace, power generation, automotive, and heavy machinery.
ZOLLERN offers a versatile casting portfolio that combines investment casting and sand casting processes, covering both complex geometries and large components:
- Investment Casting (Feinguss): Open casting, vacuum investment casting, and aluminum investment casting. Specializing in intricate components such as hot-gas turbine blades, vanes, and burner components cast from high-temperature nickel-base superalloys (e.g., Inconel 739, Hastelloy X, Nimonic, MAR M247) and aluminum alloys.
- Sand Casting (Sandguss): Monoblock sand casting and ceramic sand casting for heavy components such as Turgo impellers for hydropower, valve housings for oxygen systems, bearing cage rings, and marine diesel test stand rotors.
- Materials: Over 500 standard and proprietary alloys including carbon steel, stainless steel (e.g., 1.4317, 1.4401), specialty copper-aluminum bronzes, aluminum alloys, and nickel-base superalloys.
- Value-Added Services: Meisterschmelze master melts, complete CNC machining, specialized heat treatment, surface finishing, and component pre-assembly.