Dietermann is your first address, if it comes to casting specialities. We have set our goal to satisfy customers with difficult and complex requirements particularly:

  • from 200g up to 200kg
  • from annual demands of 1 up to 50.000
  • as blanks or including additional value added services on top of the casting

Our team of 90 employees works with competence and engagement on these challenges, beginning with construction and model making over cast into aluminium and heavy metal up to the machining work.

We provide special facilities for solutions of difficult casting requirements. If you have such special needs on your metal casting product, you are right with us!


Incorporation of the company Dietermann in Duelken (Viersen)

Additional shareholders join the company

1948 Reconstruction after World War II, still in the city center


Take-over by the Reiners family
New construction of a modern production site in the industrial area of Viersen, Mackenstein
Rationalization by investments into two modern automated molding lines
Expansion of the manufacturing area (new construction of the finishing area)
Extension of the technical capabilities (machining)
2009 Modernization and new construction of the administrative area
Joining of the 3rd generation of the Reiners family to the company management
2010 Construction of a new sand regeneration plant

Site view 2005

Site view 1976

Reconstruction Viersen site 1948