The suspension that is to be separated is filled into the horizontal, overhung perforated basket at a pre-selected loading speed. As a result of the centrifugal force, the solid particles settle on the filter fabric on the basket shell.
The solids are retained by the filter fabric, suspension fluid flows through the forming filter cake, including the filter fabric and leaves the perforated basket through bore-holes in the basket sleeve.
During filling, the fluid level in the basket and the growth of the filter cake are controlled by sensors. Upon reaching the desired filter cake height the filling process is stopped automatically.