MJR Tumblers
MJR 12 lb polymer replacement barrel
Twelve-pound nominal MJR replacement vessel.

Price info
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Use and fit
Choose this size to replace a matching twelve-pound drum on an MJR base. Compare the manufacturer’s dimensional chart with your roller span and clearance. The 12 lb label identifies the variant and helps distinguish it from nearby capacities.
Specifications
- Brand
- MJR Tumblers
- Listed model
- MJR12pbarrel
- Verified detail
- Twelve-pound nominal MJR replacement vessel.
Questions before buying
Does it replace the drum on any 12 lb tumbler?
Use it only where the MJR size chart and roller layout match. A Thumler A-R12 has a different drum and retaining system.
Compare before you buy
The A-R12 illustrates a separate twelve-pound-class design that uses a metal lid clamp. Thumler A-R12 rotary rock tumbler