Block-shaped sludge from the plate-and-frame dewatering process is weighed before being discharged into the handling system. From there, the sludge moves through an unloading screw conveyor and is lifted vertically by a scraper conveyor to the pretreatment unit. After pretreatment, the feeding system transfers the sludge to a single-unit, double-cage deep pressure filtration system for further moisture reduction.

Since sludge properties can vary significantly, even distribution is an important part of the pressing process. Once the sludge enters the deep filtration system, the distribution unit spreads it evenly across the filter cloth. The filled pressing cage is then moved into the pressing station. After the set pressing time is completed, the dewatered sludge is transferred to the discharge station and released into the discharge hopper.