Seems like Bent Audio had an ultra-sonic cleaner a few years back. You could ask them?
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Some people have made their own using the large ultrasonic cleaners used in the medical profession. I saw John Chapman's prototype at VSAC 2003.
I also had a friend that built a small one - one LP at a time. It worked quite well. It was amazing to watch the debris coming out of the grooves of a record that had been cleaned on a VPI RCM. Unfortunately, my friend never had time to build the big one that would clean multiple records at a time.
With the drop in prices of ultrasonic cleaners from China, hopefully, someone will bring out a commercial version. They really work much better than the hand scrub/vacuum dry machines.