Since the beginning of 2007, with his company Soil-Tec Mineralstoffe GmbH & Co. KG, Sven Wendt has been operating a mobile building rubble processing plant in Dusseldorf-Heerdt (Fig. 1). The focus of Soil-Tec’s activities is both the cost-efficient processing of excavated earth (mainly contaminant class II) and the processing of all building materials of mineral origin to a certified secondary resource. The material delivered is heavily contaminated with impurities – often lightweight materials such as wood or polystyrene – well, with everything that “floats and flies”. In his machine park, Wendt relies on mobile equipment as he not only operates on his own company site, but can travel to other sites when required. When he has some free capacity, he also has the possibility of temporarily hiring out equipment. A small mobile impact crusher from the start-up phase was replaced after just around 1.5 years with a track-mobile Lokotrack LT1110 from Metso Minerals with approx. 50 % higher capacity, larger rotor diameter and much larger feed inlet. With...
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