Purpose. Determining the rational operating parameters for granite crushing under impact in field of centrifugal forces to obtain cubiform crushed stone. In order achieve purpose set, task is determine obtaining main grain-size classes: -50.0 + 20.0; -40.0 -20.0 10.0; -10.0 5.0 and mm. Methods. The process stone studied conditions Kolomoievskyi Granite Quarry, Dnipropetrovsk region. with an ini...