Rock Polishing Tools

Department

Replacement barrels and bowls

Choose a replacement by matching the machine label and original part. On a rotary tumbler, compare the complete drum, the lid and the seal as separate purchases. On a vibratory machine, check whether the bowl comes with the lid and the center fastening hardware.

Shop this department

Match a replacement barrel, bowl or lid

What to check

Start with the machine label

Copy the full series and model from the machine. Look up the original part and note whether the diagram calls for a complete barrel, a bare drum or only the seal assembly. Confirm the part code before relying on a nominal pound rating.

Separate a vessel from its hardware

Check which parts secure a vibratory bowl to the base. A bowl listing may include a lid without the fastening hardware. Compare the contents with the manufacturer's diagram before replacing only the bowl.

Questions before buying

Does the A-R6 model name tell me the barrel capacity?

Use the part diagram to identify the actual vessel. The documented A-R6 replacement barrel holds nine pounds, while the A-R12 uses a different lid and metal retaining clamp. Match the closure and the model before ordering.

What should I measure before choosing an MJR replacement?

Check the outside diameter and length in the maker’s chart, then compare the original drum, base width and roller clearance. A matching nominal weight alone does not establish fit.

What should I replace if liquid comes from the lid joint?

Inspect the cover, gasket and vessel for wear or damage. Match the exact closure style and model before deciding whether you need a seal, lid set or complete drum.

Reference for this department