The Nikuni oil skimmer, Kasumi, is equipped with a special belt and effectively removes tramp oil--machine lubricant oil and broken-down emulsion oil from the machine coolant--from the surface of the machine tool tank.

Kasumi prevents the emulsion coolant from decaying and odors from anaerobic bacteria by exposing the coolant to air. Kasumi is also equipped with an oil separation tank and reduces coolant disposal.