jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Jul 22, 2013 3:22:03 GMT -5
I run at many different speeds. Slower is always safer. The surface speed is the same though regardless of diameter... A smaller drum will turn at higher RPM. I run 8 inch to 13 inch drums on slower machine very safely. It is 22 RPM for 8 inch and 8/13 x 22RPM for 13 inch drum. Most factory machines are way slower. But for rough grind faster is acceptable.
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