... made up of the following components:Ultrasonic converterconverter waveguide, not tunedsieve mesh waveguide, not tunedsupport elements high-grade steel framesshielded ... These vibrations are then carried via the converter waveguide to the mesh waveguide und thus to the sieve mesh, which ... mesh decreases with an increasing distance from the mesh waveguide. The sieve material on the sieve mesh additionally ...