Barranca Diamond BR-6 Rotary Rock Tumbler - Manual (Page 8)

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5. Add 1/2 cup 60-90 grit (silicon carbide).
6. Add 6 oz. of water, a little at a time until the grit starts to cling to the rocks. Too much water will
tend to rinse the grit back off the rocks.
7. Check the stones every couple days and add small amounts of water if the slurry seems too
thick.
8. Before proceeding to each next step, you need to open the barrel, add 3 tablespoons of
dishwashing soap and 1 additional cup of water to the barrel and run the tumbler for 5 – 10
minutes. This short pre-cleaning process de-slurries your stones before you empty the barrel and
cleans your stones and barrel to prepare for the next grit.
9. Rinse the rock carefully, it should be removed from the barrel and both the rock and the barrel
cleaned thoroughly.
10. Add 1/2 cup 220 grit (silicon carbide) and 6 oz. of water.
11. Repeat steps 7 through 9. Plastic pellets may be used during this step if your barrel is less than
3/4 capacity.
12. Add 1/2 cup pre-polish (400 or 600 grit silicon carbide) and 4 oz. of water.
13. Repeat steps 7 through 9. Plastic pellets may be used during this step if your barrel is less than
3/4 capacity.
14. Add 1/2 cup cerium oxide or aluminum oxide and 4 oz. of water.
INSTRUCTIONS
BR-6 INSTRUCTIONS
NOTE: Be sure to rinse the rock carefully, it should be removed from the barrel and both the rock
and the barrel cleaned before proceeding to the next grit.
NOTE: Never dispose of the sludge from the tumbler down a drain as the grinding compound is very
hard and will settle out and plug your drain.
NOTE: Do not cover unit with anything as this may block air flow and cause the motor to overheat,
or possible fire hazard.
NOTE: Export version of the BR-6 Rotary Rock Tumble with a 220 volt, 50 Hz gear motor available
(Part # 170046)