Single Barrel Rock Tumbler - 11 Different Combinations Available!
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$350.00at MJR TUMBLERSChecked Nov 8
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The MJR Tumblers Single Barrel Rock Tumbler is a rotary tumbler built on a heavy-duty 16-gauge welded steel frame with a powder-coated finish. It ships as a complete kit: base unit, tumbling barrel, a full grit progression (60/90 coarse through 1200 polish plus plastic pellets), and an instruction manual. It suits hobbyists and small shops that want a durable, US-made rotary tumbler without paying boutique lapidary prices. Against Covington and Diamond Pacific, MJR positions itself as comparable in size and build for far less, and the two-year parts-and-labor warranty is longer than most hobby tumblers offer.
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Owners of MJR rotary tumblers generally describe them as sturdy, quiet-running machines that hold up to continuous use, and many single out the included grit kit and warranty as reasons to choose them over pricier lapidary brands. Complaints tend to focus on the slow pace of rotary tumbling and the weight of the steel frame.
This is a single-barrel rotary rock tumbler for polishing stones. It comes as a base unit with a tumbling barrel and is offered in 11 different combinations. The base comes in a Medium size at 14 inches and a Large size at 21 inches.
The frame is 16 gauge welded steel with a powder-coated finish that resists scratches and corrosion. The barrel turns on rubber-coated steel rollers that are 3/8 inch in diameter. They run on industrial-duty flanged stainless steel ball bearings, so there are no plastic sleeve bearings to wear out.
Fins inside the barrel keep the contents revolving. The heavy-duty motor has automatic thermo overload protection. The tumbler includes an instruction manual for care and use, plus polishing and tumbling instructions for multiple applications.
