The Achenbach SUPERSTACK® II  filter is a completely redesigned horizontal plate filter for micro-filtration of high roll coolant circulation volumes. For filtration of the rolling oil this filter is used as precoating filter. This kind of filtration allows on the one hand the mechanical filtration of all particles generated during rolling out of the mill coolant and on the other hand the inline setting of further quality properties of the rolling oil. The aim is to keep the coolant quality constant during the complete filtration cycle. This constant coolant quality can be monitored by the newly Achenbach developed coolant conductivity sensors, called CONDUSENS®. Achenbach can produce a large number of worldwide references. The development of SUPERSTACK II filters represents up to date generation of Achenbach filtration systems based on decades of experience.