Aug 30, the size of this type of crusher is the width of the receiving opening measured between the concaves and the crushers head. it is available in sizes varying from 20cm to 200cm. 50. 3. cone crusher cone crusher are used as a secondary or tertiary.Essa jc jaw crusher . the heavy-duty, general purpose essa jc jaw crusher is a well proven, highly productive primary crusher used in sample preparation and plant applications. more powerful than the jc, it is suitable for higher workloads and.