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Bart B. · January 28, 2013, 09:54 PM

rrawhide asks if there a recommended RPM for turning/polishing brass?

Yes, about 60 to 120 rpm for the tumbler; at least 1 revolution per second to no more than 2 revolutions per second. This is for tumblers of 10 to 12 inches in diameter.

Any faster with media and cases spinning around starts getting into the accident range.

A tumbler rotating at 700 rpm turns almost 12 revolutions per second. Way too fast. Is someone getting a vibrator mixed up with a tumbler for what to call it?

January 28, 2013, 09:54 PM	#6
Bart B. Senior Member Join Date: February 15, 2009 Posts: 2,189	rrawhide asks if there a recommended RPM for turning/polishing brass? Yes, about 60 to 120 rpm for the tumbler; at least 1 revolution per second to no more than 2 revolutions per second. This is for tumblers of 10 to 12 inches in diameter. Any faster with media and cases spinning around starts getting into the accident range. A tumbler rotating at 700 rpm turns almost 12 revolutions per second. Way too fast. Is someone getting a vibrator mixed up with a tumbler for what to call it? __________________ US Navy Distinguished Marksman Badge 153 Former USA Palma Team Member NRA High Power Long Range High Master NRA Smallbore Prone Master