WIRTGEN then went on to develop the most powerful machine in the surface mining product division – the new 4200 SM – testifying to its decades of mining competence. Starting out as a niche technology, surface mining developed into the main mining method for pay minerals in many different locations.
Meanwhile, WIRTGEN GmbH made further investments in its brand headquarters in Windhagen. It gained a new assembly plant, a plant for special-purpose machinery, a new administrative building and other infrastructural facilities.
Between 2006 and 2010, Jürgen Wirtgen and Stefan Wirtgen proceeded with their growth strategy. Aiming to harness potential in the future, too – beyond the domain of road construction – the WIRTGEN GROUP entered the material processing market. It set up two business sectors: "Road Technologies" and "Mineral Technologies".
The establishment of the second business sector began in 2006 with the integration of KLEEMANN GmbH, a long-standing German manufacturer of mobile processing plants. Having successively integrated KLEEMANN into the WIRTGEN GROUP's worldwide sales and service network and erected new brand headquarters for KLEEMANN in Göppingen, the WIRTGEN GROUP was able to consolidate its "Mineral Technologies" business sector in the period up to 2010, placing it on a firm footing for the future.