Centrifugal Oil Cleaner removes very fine dirt from oil up to 5 micron and below by centrifugal force created in centrifuge rotor. Conventional filters cannot remove such fine dirt from oil. There are no consumables hence no recurring cost. Collected dirt can be easily cleaned and the unit put back to use again. With clean oil wear of tools and dies is reduced and job finish is improved. The Oil need not be replaced frequently, thereby saving substantially on oil expenses and protecting environment.