Having had ultrasonics in offices for years, they can make shiny plastics haze over. Also, vinyl is plastic with some emollients/emulsifiers/plasticizers that can leach, and I imagine the surface of vinyl can craze.
Vinyl is extremely tough, but I would only use ultrasonics sparingly, mostly as an initial one-off for a really dirty record. I would not be using it over and over again to clean records. For that matter, I don't think using cleansers and detergents over and over is such a great idea, either.
Ultrasonics don't always "remove" dirt, they mostly shake it up a bit so that more exposed surfaces can be opened for disinfectant/cleansers and the dirt is loosened. You still need a follow up light scrub and really good rinse. That is why I don't see any of these machines taking the place of a hand wash.
A machine that truly took the place of a hand wash with ultrasonic/steam would need to be about four to six feet long if you had all of the stations automated and set up to put it in one end so that it just popped out the other, and even then, you can be more careful with the record if you deal with it by hand. The machine would have to be a real beast.
When I use an ultrasonic for the rare record, it is only exposed for a minute or two and rolled by hand.
I would say clean the records once really well, and if you have to keep cleaning them, use something very light aCnd easy on follow up cleansings.