Automate your material separation with GK’s proven DE-STONER® air classifier. Energy-efficient vibratory action and high velocity, low pressure air streams work in tandem to fluidize and stratify commingled materials according to differences in terminal particle velocity. Many De-Stoner systems are designed with “air curtains” to provide further separation after the initial cut of “heavies”. The result: fast, efficient removal of heavy materials such as stones, metallics, and glass from lightweight materials such as paper, plastics and wood.