SKU 93252 For technical questions, please call 1-800-444-3353 Page 8
Maintenance
1. When using, always be sure the gasket seals are in good condition and in place. If they become
damaged, replace them.
2. The rubber feet at the bottom of the Bowl may become worn after extensive use. Inspect them periodically,
and if worn, replace them.
3. Protect the motor from water or moisture. Store in a dry location when not in use.
4. This tumbler is not intended for polishing stones. For polishing stones, you need a lapidary tumbler
which uses water mixed media. Lapidary tumblers are available from Harbor Freight Tools.
Some Notes on Media
The media used in standard tumblers is generally not suitable for vibratory machines. The media that is
run wet is not suitable for this tumbler. Vibratory tumblers often use dry media that is too light to be effective
in standard tumblers. Appropriate media for this vibratory tumbler is available from Harbor Freight Tools.
Steel and ceramic media, generally used in tumbling, may also be used in heavy duty vibratory
machines. However, this tumbler is not designed to work with these heavy duty media, which will wear out
the bowl prematurely.
There is a wide variety of media to be used in vibratory finishing, you are encouraged to experiment.
You’d be surprise to find how many shops are using outlandish media like erasers, wood pegs, bone and
other odd media (and getting good results).
Media Type Abrasive Application Density
Plastic Beads Fine Silicate
Light cut-down of metal, surface prep
for polishing
62 Lbs. per cu. foot
Plastic Beads Medium Silicate Medium cut-down of metal, deburring 56 Lbs. per cu. foot
Plastic Beads Coarse Aluminum Oxide Heavy cut-down of metal, deburring 62 Lbs. per cu. foot
Walnut Shell Rouge Polishing, oxide removal 45 Lbs. per cu. foot
Walnut Shell None added 45 Lbs. per cu. foot
Corn Cob None added 29 Lbs. per cu. foot
Red Rouge 1st step polisher Powdered Polishing Additive N/A
Ruby Powder Medium polisher Powdered Polishing Additive N/A
Linde A Finish polisher Powdered Polishing Additive N/A
Some Recommended Media Types
Here is a chart of recommended media for this vibratory tumbler. Plastic beads are usually used with
a powdered abrasive added. Walnut shells and corn cob may be used alone, or with added abrasive.
Polishing materials include Rouge, Ruby Powder and Linde A.
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