Vibratory sieve | RHEWUM WAU
Precision vibratory sieves that deliver on their promises
The WAU vibratory sieves are used in the medium separation range. This screen type is a vibratory sieve which employs direct excitation of screen mesh; thus the screen housing only takes a static function. It also preserves the building and/or the steel structure. No dynamic loads are transmitted as they are created by completely vibrating conventional screens. Rigid connections to on-and off-going chutework are possible. Thereby this vibratory sieve offers protection against dust emissions.
Vibration is imparted into the sieve cloth by high speed movement of a transversally mounted rocker shaft, located beneath the sieve cloth. Therefore the velocity down the vibratory sieve is determined by the angle of the screen deck. Outside the screen housing rugged out of balance motor drives rock the knocker shafts, conveying the high frequent oscillation directly into the screen mesh. These high accelerations guarantee also a correct screening of adhesive products. Freely programmable cleaning impulses for the sieve cloth reach an acceleration of up to 8 g. During standstill the vibration intensity of the motors can be adjusted and therefore a perfect adaption of vibration amplitude to product changes is possible. Each screen deck can be individually adjusted and perfectly adapted to product demand.
High frequency vibratory sieve
It loosens the product bed and segregates the product mixture by throwing big particles above the finer ones and separating them by comparison with the mesh opening. The vibrating screens ensure the maximum productivity and screening capacities in the smallest possible space.
The combination of longitudinal tensioning of screen mesh and free access affords easy and quick exchange of screen cloths. Maintenance to the exterior of the screening space arranged drives can be done during operation. Due to the number of drives any possible failure of a drive does not require the shutdown of the plant.
Standard machine sizes are in the range of 1.4 m² to 26.4 m² per screening deck resp. machine. Additional vibratory sieve 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(!).
Do you have questions on vibratory sieves? Simply contact us and we will gladly advise you.