RHEWUM high performance screening machines type WA are used for classification of bulk material in the finest to medium grain size range. This screen type is a throw sieve which employs direct excitation of screen mesh; thus the screen housing only takes a statical function. It also preserves the building and/or the steel structure. No dynamic loads are transmitted as they are created by completely vibrating convential screens and rigid connection to on-and off-going chutework is possible.
The high frequency vibration of the screen net effects to overcome the adhesive particle forces within the product, to loosen the product bed and to segregate the product mixture by throwing big particles above the finer ones and separating them by comparison with the mesh appertures. The machines attain unequal high specific screening capacities on the smallest possible space.
The combination of longitudinal tensioning of screen nets and free access affords easy and quick exchange of screen cloths. Maintenance of the outside the screening space arranged drives can be done during operation and due to the number of drives a possible failure of a drive does not necessitate to shut down the plant.
Standard machine sizes are in the range of 1,4 m² to 26,4 m² per screening deck resp. machine. Additional sizes and special constructions are possible on demand. Relating to these dimensions electrical power range is in between 0,52 kW to 3,9 kW(!)