Commonly compared to the traditional hand screening used in the gold industry, the feed product is continuously fed into the top of the circular screen design. 

The material then disperses evenly to the outside of the screen across the whole screen surface. The Particles that are finer will pass through the screen mesh at the centre and core with the oversized particles spreading out to the edges of the screen.

As the material is moved in a spiral pattern with increased acceleration of the particles the further they move from the epicentre, the more vibration is inflicted on the particles ensuring that even the particles sized the same as the mesh openings pass through the screen.

The separated particles then pass to a discharge exit at the lateral outlets. The addition of numerous decks can create a system that produces numerous fractions from one cycle. With each undersized particle passing through each subsequent deck.