Foundation of HEFA Kältetechnik oHG in Hersbruck near Nuremberg

Invention of the plug-and-pin system and granting of the patent

First production hall built in Sulzbach-Rosenberg, Castnerstrasse

Start of own production in Castnerstrasse

Expansion of the first production site in Castnerstrasse

New production hall purchased in Eisenhaemmerstrasse

New administration and production building in Ludwig-Erhard-Strasse

Expansion of the production site in Ludwig-Erhard-Strasse