Equipment Sizing: Crusher or Grinding Mill
The 159 indicates a 548 crusher size with 1″ eccentric throw. With 1-in. eccentric throw, the motor hp allowed on the crusher is a maximum of 125. However, since only 90.3 hp is required for this average material, a 100-hp motor is sufficient. Fig. 2, taken from manufacturer's bulletin, lists horsepower requirements and Rod Mill sizes.