Hey, I just wanted to throw in my
, for what it's worth.
I have a mid grade professional Eumax Ultrasonic w/ Heat & Timer $120, and the cheap $25 one. The good one is wonderful for cleaning investment out of freshly cast silver, but it DESTROYS ATTYS (it has literately vibrated a few of them apart). The cheap one is worthless for jewelry making, but is brilliant for cleaning attys and cartos.
The reason that they have cutoffs (3min for the cheap one, 30min for the good one) is that the 'motor' needs to cool down between cycles, as a rule of thumb let it rest for an equal amount of time as the cycle. Your cleaner will thank you by living a long and happy life.
The instructions for the good one say that it should not run more than 3 hours a day, for more than 3 hours you should look at 'industrial grade' starting at about £240 (here).
btw, thanks bobalex, GUCE is a brilliant idea, can't wait for WL to be stocked back up

I have a mid grade professional Eumax Ultrasonic w/ Heat & Timer $120, and the cheap $25 one. The good one is wonderful for cleaning investment out of freshly cast silver, but it DESTROYS ATTYS (it has literately vibrated a few of them apart). The cheap one is worthless for jewelry making, but is brilliant for cleaning attys and cartos.
The reason that they have cutoffs (3min for the cheap one, 30min for the good one) is that the 'motor' needs to cool down between cycles, as a rule of thumb let it rest for an equal amount of time as the cycle. Your cleaner will thank you by living a long and happy life.
The instructions for the good one say that it should not run more than 3 hours a day, for more than 3 hours you should look at 'industrial grade' starting at about £240 (here).
btw, thanks bobalex, GUCE is a brilliant idea, can't wait for WL to be stocked back up
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