School of Hard Rocks

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Thumler Model B

My favorite rock tumbler is the Thumler Model B. This is a 15 pound rated machine, so it is very capable of doing lots of work. When a Model B was my only machine, it did everything and worked great. If you can hose the drum with lots of water you can clean it up enough to avoid grit contamination as you move right on into polish. When I added more machines, I use the Model B mostly for coarse grinding.  With 46 - 70 grit the Model B shapes up a bunch of rought stones in a very short time. If I could only have one machine this would be it.