Hansen Sicherheitstechnik AG, Munich
Mines are necessary for the supply of coal, ore and raw materials. For example, in every mobile phone, there are 41 different raw materials that need to be extracted from mines all over the world.
Various hazards threaten mine safety: among others, gases or coal dust can explode, resulting in fatal destruction in the narrow tunnels. To keep electrical equipment like transformers, switches, lights, loudspeakers or computers spark free in order to prevent ignition, all of those devices must be explosion proof. This is Hansen’s mission.
In 2007 DVM sold all remaining shares to the Polish mining equipment company “Kopex” and Christian Dreyer, after 18 years with Hansen, retired from his position in 2009 to pursue new challenges. Today, Hansen is not listed any more, as it has been integrated in Kopex.