This item is a spare 4 pound barrel to suit the Lortone 45C rotary tumbler.
Most experienced rock tumblers recommend having at least one spare barrel on hand to keep grinding and polishing stages completely separated. Still need to wash the barrel thoroughly between steps but the risk of contamination between steps is much reduced if you never use a coarse grit in a barrel used only for polishing.
DIMENSIONS: We know that many people like to build their own tumblers as they are very simple in concept. However, using a Lortone barrel gives you the best of both worlds as it is an excellent tumbler barrel.
For your reference, the 4 pound barrel has an outside diameter of just over 6" (or 150mm) and a height (to the closed lid) of ~120mm - the full height including the locking nut is 140mm so you will need to allow this much room along the rollers.
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