Company profile


We are at your service with high-tech know-how.
We update and optimise precision machine tools, and high grade components.

In our history we have a wide range of experience which stretches back:

more than 40 years  in heat treatment of unprocessed steels
more than 25 years in vacuum treatment techniques
more than 20 years in plasma nitriding techniques
more than 17 years in PVD coating

We have 400 employees from 15 nations, including highly qualified engineers and technicians, who ensure that approximately 20,000 different items weighing from 1 g to 2.5 tonnes are processed individually, under strict supervision and are completed on time.

Through our know-how and collaboration with you as our customer as well as with well-known scientific institutions, steel producers and plant manufacturers, we take pride in always maintaining our product quality equal to the state of the art.

Our senior management:

Dipl.- Ing. Jürgen Bach
CEO and Member of the Board
Holder of the "Bundesverdienstkreuz am Bande" – German medal of honour for services to the economy and creation of valuable jobs.


Dipl.- Phys. Frank-Peter Bach
CEO and Member of the Board

  • H-O-T service centre Albershausen
  • H-O-T service centre Bursa (Turkey)
  • H-O-T service centre Buttenheim
  • EB-Härtetechnik
  • H-O-T service centre Memmingerberg
  • H-O-T service centre Nuremberg
  • H-O-T service centre Schmoelln
  • H-O-T service centre Werl

We update and optimise precision machine tools and high-grade components.