ultrasound record cleaning machine damaged my records

Regarding the ability to damage a record with UT, there are a lot of variables in-play.  The record spin speed, the kHz, the tank volume, the power W/L, the transducer location and how close is the record to the transducers and the actual record composition - not all records have the same composition.  

The video that shows over 12 sequential cleaning cycles, and it caused damage (whatever that means), is a one-time event with not a lot of supporting detail like what was the tank temperature.  Deliberate improper use of any device can lead to damage; either to the device itself or the object being cleaned.  

Damage that may occur is erosion caused by the cavitation event and the high velocity jet that does a lot of the cleaning.  Watch this video between 6:19 and 8:30 Cavitation - Easily explained! - Bing video that shows with high-speed video how a cavitation bubble collapses.  This video is a computer-generated simulation of a single cavitation bubble collapse Inertial collapse of a single bubble near a solid surface - Bing video.  Pay attention to the pressures and temperatures (which are theoretical and do not actually occur in use) associated with the implosion event. There 'can' be a lot of energy with the event.

Otherwise, here are some of the basic design rules for UT tanks.
-The power to produce cavitation is proportional to the kHz, so a 120kHz UT needs more power than a 40kHz.
-For ultrasonic tanks, the bubble diameter is inversely proportional to the kHz, so a 40 kHz UT produces a large bubble than a 120kHz UT.
-The cavitation intensity is proportional to the bubble diameter and the tank power (watts/L) but there is a maximum power above which no addition cavitation intensity is obtained. 
-The number of cavitation bubbles produced is proportional to kHz, so a 120kHz produces more bubbles than a 40kHz, but smaller bubbles.
-The smaller the tank volume, the more power that is required. It has to do with the ratio of the tank volume to its interior surface area.
-For lower kHz units (<60kHz), if the tank bath flow rate (from filtering or spinning) >50% of the tank volume per minute, cavitation intensity decreases.

Hope this is of some help,

lewm

Cleeds, I drive a well known German automobile. Can you name it with any certainty? No.

Of course not. That’s my point. I don’t understand the coy secrecy here.

dwcda

I’m guessing based on the specs it’s a Humminguru.

Of course everyone is free to speculate. We can speculate that @lewm drives a Porsche. But he could just as easily be a VW or MB guy. Or something else.

I have a Hummingru machine, have used it on all my records, new old, and vintage. It has done nothing but clean them. Some vintage ones need a couple of rounds to get everything out. But there has been 0 damage done. You are more likely to damage a record with manual cleaning than the ultrasonic machine. The Hummingru machine is suppose to have a thermal shut off if the water gets too hot. It also states to not run more than a few times per round. If you do the wash/dry cycles it cools the unit off during the drying cycle. My water never gets hot, even after using it all day, as I usually clean in 20-50 records at a time.

My routine is to use G2 manually, then go into the bath. Only distilled water and one drop of G2 ultrasonic cleaner per gallon. 

mswale

You are more likely to damage a record with manual cleaning than the ultrasonic machine.

That's very likely true, but in this case we don't know much about the machine he's using. Perhaps he's rigged a commercial machine intended for an entirely different purpose. Or maybe he's just fabricated the entire affair.

@antinn Not to side track the thread, but at present I work with the suggested for the UK, BASF™ Dehypon® LS 54 nonionic surfactant. as a substitute for  Tergitol 15-S-9.

Can you give a description of how Polysorbate 20 also(Polysorbate 80 is found), fits in as a additional chemical to be used for a solution, or is the chemical to  Supersede Dehyphon as a part of a solution?