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The Lortone 3A is a single-barrel rotary rock tumbler with a 3 lb barrel, 4.5 inches in diameter and 4.75 inches long. It is built for small batches: tumbling a few pounds of rough stones, glass or metal through grit stages at home. Lortone's rotary drums have a long reputation among lapidary hobbyists for quiet running and durable motors, and the 3A is the entry point of that line. Compared with dual-barrel tumblers, it runs one batch at a time, so grit stages must be done in sequence rather than in parallel.
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Lortone rotary tumblers have a strong following among lapidary hobbyists for their durable build and quiet running. Owners of the 3A line generally report reliable service over long tumbling runs, while noting the slow pace and single-batch limitation of a small rotary drum.
The Lortone Model 3A 001-92 is a single-barrel rotary rock tumbler for polishing stones, gems, glass and metal at home. It has a durable build and a powerful motor.
The barrel is 4.5 inches in diameter and 4.75 inches long, with a capacity of 3 lb. That suits small to medium-sized projects.
The design is simple to operate and needs minimal maintenance. An instruction manual is included.
