Dietermann GmbH & Co. KG – Sand Casting Manufacturer from Germany Dietermann GmbH & Co. KG is a German sand casting manufacturer and contract foundry located in Viersen, North Rhine-Westphalia (NRW), Germany. Founded in 1921, the company specializes in the production of high-quality sand cast components made from aluminium and iron alloys for the mechanical engineering, plant engineering, engine and automotive industries. Dietermann focuses on aluminium sand casting and iron sand casting for prototypes, small and medium series and supports customers as a development and manufacturing partner from design and engineering through to serial production. Scope of services: Sand casting of aluminium and iron alloys Prototypes, small- and medium-batch production Casting-oriented design support and component optimization Pattern and core manufacturing Heat treatment and surface treatment Coordination of machining and finishing Quality inspections (dimensional, visual and non-destructive testing) FAI / PPAP-style documentation and inspection reports Dietermann is certified according to DIN EN ISO 9001, ISO 14001 and ISO 45001, ensuring high standards in quality management, environmental management and occupational health & safety. As an experienced sand casting specialist in Germany and NRW, Dietermann stands for technical expertise, process reliability and dependable delivery performance.