In the cement industry, trend is toward ever increasing grinding capacities of individual grinding plants. As a result, plant availability and optimized maintenance concepts are becoming more and more important. The newly developed MVR roller mill of Gebr. Pfeiffer AG for grinding cement raw material, cement clinker, and additives with an installed power of up to 12,000 kW does in fact fulfill these customer requirements perfectly. The modular design of the MVR mill comprising 4 to 6 grinding rollers allows the continuation of mill operation even if one roller module is not available. The same applies to the new MultiDrive design of the mill drive consisting of up to 6 identical drive units in the range of 2,000 kW each. So mill operation may continue while maintenance work is being performed on a drive unit. Hence any unplanned downtimes are considerably reduced even in case of an outage of main components. ... more