
... the widely used limestone primary crusher machine, it is mainly used in primary crushing process. its wearable parts are fixed jaw plate, a o engineering,average stone size of the primary crusher,the common primary crushers are of jaw and gyratory types.a crusher is a multi dimensional machine which is designed to reduce large size materials into smaller size materials. crushers may be used to reduce the size, or change the form of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix