history

Robert Josef Wolf founded the company Robert Josef Wolf GmbH & Co. KG in Netphen, then in the Siegen district (now the Siegen-Wittgenstein district), in a small production hall.

Production facility and administration will be moved to the industrial area
“Lehnscheid I” was relocated to Wilnsdorf, the current main location.

Klaus-Dieter Wolf takes over the management in the 2nd generation.

The company Robert Josef Wolf GmbH & Co. KG takes over the company Siegthalerfabrik GmbH in Siegen. This marks the start of the production of rings and flanges.

In 2004, the company acquired a stake in Landruf Rohrtechnik GmbH in Freudenberg. In 2007, the majority shareholding was acquired. In 2013, the company moved to a new location in Siegen-Weidenau.

Dietmar Wolf is also appointed Managing Director.

In 2006, a new production facility was taken over in Herdorf in the neighboring district of Altenkirchen, today's Plant 3 for container and apparatus construction.

In 2008, production began in the newly built ring forge in the Wilnsdorf industrial area "Lehnscheid VI" or "Elkersberg". This gave the company the opportunity to manufacture large rings, including mechanical processing, in what is now Plant 2.

The completion of a new hall for membrane housings at Plant 3 in Herdorf is planned for 2024.