The Cavex shape is such an obvious design for cyclone inlet geometry. The Cavex curved spiral inlet is the natural flowpath into the cyclone. Examination of worn conventional cyclones clearly shows the formation of this natural flowpath. . With Cavex the natural flowpath exists when the cyclone is new , not when it's nearly worn out! Cavex feed chamber life is typically 3 times that of conventional cyclones , proof the Cavex design is the future in classification.