With precision sizer you have to Keep in mind at all times the Oliver Gravity Separator is not a "cure all" for the processorís problems. The gravity separator is a specialized piece of equipment during the precision sizer process designed to separate particles of a similar size that differ in weight. Oliver Gravity Separators should not be used as a cleaning machine to remove dust, dirt and other refuse. The gravity separator should not be used as a sizing machine.
Screeners can do this job more efficiently. In all processing situations, the best results are obtained on the gravity when the product has been thoroughly pre-cleaned and sized, using the proper equipment for those purposes. Under these conditions, the gravity separator is able to show what it can really do!