{"product_id":"40lb-rock-tumbler-machine-heavy-duty-professional-rock-b0bz5b4yql","title":"MJR Tumblers 40lb Rock Tumbler Machine, Steel Frame Stone Polisher","description":"\u003cp\u003eThe MJR Tumblers 40lb rock tumbler is a heavy duty stone polisher for adult hobbyists and professionals. A fan-cooled motor built for continuous operation turns your loads at a steady speed, and a welded steel frame keeps the base solid through long tumbling runs.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: MJR Tumblers\u003c\/li\u003e\n\u003cli\u003eCapacity: 40lb (also offered in 10, 12, 15, 25 and 30 pound sizes)\u003c\/li\u003e\n\u003cli\u003eFrame: 16-gauge welded steel, powder-coated finish\u003c\/li\u003e\n\u003cli\u003eBearings: industrial-grade stainless steel ball bearings\u003c\/li\u003e\n\u003cli\u003eRollers: rubber-coated, no plastic bushings\u003c\/li\u003e\n\u003cli\u003eMotor: fan-cooled, thermally protected\u003c\/li\u003e\n\u003cli\u003eBarrels: base supports multiple barrel sizes; additional barrels sold separately\u003c\/li\u003e\n\u003cli\u003eOrigin: USA-owned, veteran-owned company\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuilt for long polishing runs\u003c\/h2\u003e\u003cp\u003eMJR designed this base for extended, continuous use. The thermally protected motor holds an even speed for consistent polishing. A powder coat on the steel frame resists corrosion. Stainless bearings and rubber-coated rollers, with no plastic bushings, keep rotation smooth over many cycles.\u003c\/p\u003e\u003cp\u003eYou can set the base up with one barrel or a mix of barrel sizes, depending on the batch. Small test runs and large loads both fit the same frame. The listing title also notes a quiet motor and USA manufacture.\u003c\/p\u003e\u003ch2\u003eWhich size should you choose?\u003c\/h2\u003e\u003cp\u003ePick the capacity that matches your largest batch. The 40lb model handles the biggest loads in the range. Smaller bases from 10 to 30 pounds suit hobbyists working on fewer stones.\u003c\/p\u003e","brand":"DS-AMZ","offers":[{"title":"30 Pound","offer_id":50654606622960,"sku":"AMZ-B0BLT4JW77","price":615.94,"currency_code":"USD","in_stock":true},{"title":"12 Pound","offer_id":50654606655728,"sku":"AMZ-B07DYLB9W1","price":502.13,"currency_code":"USD","in_stock":true},{"title":"10 Pound","offer_id":50654606688496,"sku":"AMZ-B07DYH6LVG","price":488.74,"currency_code":"USD","in_stock":true},{"title":"25 Pound","offer_id":50654606721264,"sku":"AMZ-B07FLR4BK9","price":602.55,"currency_code":"USD","in_stock":true},{"title":"40 Pound","offer_id":50654606754032,"sku":"AMZ-B0BZ5B4YQL","price":770.84,"currency_code":"USD","in_stock":true},{"title":"15 Pound","offer_id":50654606786800,"sku":"AMZ-B07FK9RL3N","price":575.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0434\/7985\/9361\/files\/51p_ylirllL._AC_SL1500.jpg?v=1792810937","url":"https:\/\/www.bigfrenchies.com\/products\/40lb-rock-tumbler-machine-heavy-duty-professional-rock-b0bz5b4yql","provider":"BIG FRENCHIES","version":"1.0","type":"link"}