Clean fluid discharge
Feed slurry enters through a hollow axle at the narrow end and is distributed to the bowl. Centrifugal force as high as 379 G at 1,200 rpm (or 2,066 G at 2,800 rpm) holds the slurry against the bowl wall in a pool. Trapped silt and sand-sized particles settle and spread against the bowl wall, where they are conveyed to the solids underflow discharge ports by the tungsten carbide–tipped scroll flights on the conveyor. Silt and sand particles exit damp but with no free liquid. The cleaned fluid is discharged through weirs that regulate the pool depth.