Grinding Speed (RPM)

Particle Size Reduction %

Quartz

Galena

Mixed

(Quartz + Galena)

1^st Pass

5^th Pass

1^st Pass

5^th Pass

1^st Pass

5^th Pass

1000

23%

23%

48%

79%

19%

19%

1500

23%

69%

76%

86%

-

-

2000

28%

79%

84%

84%

39%

85%