impact crusher used in lime stone,Line Mills | Line Crushers & Pulverizers | Williams CrusherWilliams Direct Injection Roller Mills are used as line grinding machines and can grind to very exact particle sizes that are required for efficient SO2 removal. These line . for durability. These secondary impact crushers can even be used as a tertiary crushers and work great as line crushing machines.impact crusher used in lime stone,line | Stone Crusher used for Ore Beneficiation Process PlantJaw and Gyratory/Cone crushers reduce the material by high pressure, which makes them perfect for processing hard materials with a compressive strength of up to 400 Mpa. Because of the relatively low compressive strength of line (< 150 Mpa), these crushers are mainly used for highly abrasive line. On the.