PQ University Lesson 7 Crushing Secondary Breaking ...
· As the moveable jaw pushes against the stone in the chamber, the stone is fractured and reduced, moving down the chamber to the opening at the bottom. The reduction ratio for a jaw crusher is typically 6to1, although it can be as high as 8to1. Jaw crushers can process shot rock and gravel. They can work with a range of stone from softer rock, such as limestone, to harder granite or basalt ...