tumbler by weight or volume?

lowkey off to a rocking start Member since April 2008 Posts: 18	tumbler by weight or volume? Apr 25, 2008 4:42:40 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by lowkey on Apr 25, 2008 4:42:40 GMT -5 When filling the rotary tumbler, filling 3/4 of weight of the capacity of barrel or 3/4 of the volume of barrel? 60/90 coarse run.
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fanatic starting to spend too much on rocks Member since October 2007 Posts: 233	tumbler by weight or volume? Apr 25, 2008 5:40:38 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by fanatic on Apr 25, 2008 5:40:38 GMT -5 3/4 of the volume of the barrel
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huffstuff
fully equipped rock polisher

Member since August 2007
Posts: 1,222

tumbler by weight or volume? Apr 25, 2008 6:35:34 GMT -5

Quote

Post by huffstuff on Apr 25, 2008 6:35:34 GMT -5

Very good question! Yes, the guideline/rule of thumb is 3/4 full. I had mine filled to 3/4 volume, and my 3lb barrel, with rocks and grit and water, weighed 4 lbs!

I have reduced my load to 3 lbs total, but now the barrel is only half full, and I know this is not optimum for tumbling.

Any ideas?

Amy

"Rubies! Emeralds! Feldspar!"
Journey to the Center of the Earth 3-D, 2008

johnjsgems
gets rocks for Christmas

Member since August 2007
Posts: 6,959

tumbler by weight or volume? Apr 25, 2008 6:57:24 GMT -5

Quote

Post by johnjsgems on Apr 25, 2008 6:57:24 GMT -5

I fill mine to 2/3 full and add ceramic media to bring it up to 3/4 full. If your tumbler motor won't handle a 3/4 drum the ceramic media would be a good filler. I've never felt the need to weigh a barrell and add grit/polish like my mother used to cook, "add about that much" .

John at JS Gems

www.jsgemslapidary.com

huffstuff fully equipped rock polisher Member since August 2007 Posts: 1,222	tumbler by weight or volume? Apr 25, 2008 8:19:48 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by huffstuff on Apr 25, 2008 8:19:48 GMT -5 Thanks, John. Do you use the ceramic media in the 60/90 stage? I don't use it until 120/220. Amy
	"Rubies! Emeralds! Feldspar!" Journey to the Center of the Earth 3-D, 2008

johnjsgems gets rocks for Christmas Member since August 2007 Posts: 6,959	tumbler by weight or volume? Apr 25, 2008 19:13:27 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by johnjsgems on Apr 25, 2008 19:13:27 GMT -5 Yes. It acts like some rtocks in the mix to speed up the process.
	John at JS Gems www.jsgemslapidary.com

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rocknrob: That was one heck of a windstorm that thankfully missed me. I guess Seatac almost hit 60mph gusts. I bet those were some fun landings Nov 20, 2024 21:55:16 GMT -5

Post by lowkey on Apr 25, 2008 4:42:40 GMT -5

Post by fanatic on Apr 25, 2008 5:40:38 GMT -5

Post by huffstuff on Apr 25, 2008 6:35:34 GMT -5

Post by johnjsgems on Apr 25, 2008 6:57:24 GMT -5

Post by huffstuff on Apr 25, 2008 8:19:48 GMT -5

Post by johnjsgems on Apr 25, 2008 19:13:27 GMT -5

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