Solid substances as well as liquids are separated and filtered. Height adjustment of the system is made manually to set-up the optimal angular position for the filtration. The target is to allow a simple and even adjustment of the high load. The use of spindle and nut from the igus® product range complements this, and a spherical bearing fulfils both specifications. Additional pluses: Simple installation, reduction of parts and maintenance-free because of no lubrication.