With passion and experience

200 years of steel processing

We have been processing steel for more than 200 years. In the process, we have grown from what was then an anvil forge in 1798 into a modern, internationally active service provider for the heat treatment of heat-treatable and engineering steels. We are a family business with a high degree of reliability and delivery reliability.

Historical key data

  • 1798 – Hermann Kuhler founds the crude steel hammer and develops into the largest anvil forge in Bergisches Land
  • 1938 – Takeover of the business – Forging work on a contract basis
  • From 1970 – Construction of the first heat treatment furnaces
  • From 1975 – Further plant and machinery is purchased.
  • From 1980 – construction of a protective gas hardening shop – conversion of the company into a pure contract heat treatment plant.
  • 1987 – 2006 – Further furnace systems and straightening machines are purchased. The protective gas hardening shop is demolished.
  • 2007 – Construction of a new industrial hall with further kiln plants
  • 2011 – Addition of an in-house test laboratory for mechanical testing.
  • 2012 – Addition of a further warehouse
  • From 2012 – Modernisation of the furnace systems and machines