U.S. Solid Mechanical Ultrasonic Cleaner - 40 KHz Stainless Steel Ultrasonic Cleaning Machine with Mechanical Control Knob for Industrial and Jewelry, 176?, FCC, CE, RoHS (2L)

Cleaned my dive watch, wife's jewelry, plumbing and pressure washer parts. All good so far. Quieter than what I was expecting. Put a glass container in the basket with the object to be cleaned with a mixture of one part CLR and 4 parts water. Added distilled water around that to cover the top of the basket but not over the glass container. This saves on cleaning solution and is easy to clean. Heater is not bad but I use it only half the time and I run the cleaner 25 minutes or less. I have the 6L model which has 3 transducers and mechanical controls. Shipping was rough because one corner of the box was beat up pretty good but the cleaner came out OK. Am satisfied so far. Will use it on a carburetor next.

This unit comes with mechanical controls, which I preferred because they are easier to manipulate quickly. Instead of having to push a membrane button a dozen times, I can quickly turn the dial. In addition, I've had poor prior experience with electronic controls on other manufacturer's units breaking before the other parts. Overall, this is a nicely packaged unit with no issues so far.

Works great.

It takes a long time to heat up but expected that with only a 600 watt heater. Been using it for a month and it has been a good unit with no leaks, melting, short outs, or the like. Been using it for cleaning and removing paint and rust on parts during metal fabrication and repairs.

This is my second ultrasonic cleaner from the same company and both failed. Maybe about two hours on each unit. The heating element does not hold temperature. Then eventually, the Ultrasonic Element stop vibrating. It would be nice if these units were made somewhere else instead of China. These units for sale on Amazon seem to be all the same junk.

My jewelry is shining like new ! Love it easy to use !!

Works really great. Quieter than expected. Good quality.

The magnet was not set flush in the metal housing. It was not loose, but glued in this angled position. Quality control needs to be improved.