How to Cavitation Test your Ultrasonic Cleaner

Results of a successful aluminum foil test

Cavitation in an ultrasonic cleaner is the implosion of tiny bubbles on surfaces being cleaned, a process that safely blasts away contaminants.  How tiny is tiny you ask?  Well, the radius of bubbles depends on the ultrasonic frequency employed, examples being 110 microns at 30 kHz and 41 microns at 80 kHz, two commonly used […] Read More



August 11th, 2014

Volatile Solvents and Ultrasonic Cleaner Safety

Store flammable cleaning solvents in approved containers

As noted in an earlier post some folks use volatile solvents to clean parts in an ultrasonic cleaner designed for use with water-based cleaning solutions.  We said it was a bad idea and here we’ll tell you why it is a bad idea from the standpoint of ultrasonic cleaner safety. Our hypothetical friend Joe operated […] Read More



July 17th, 2014

Selecting and Operating Explosion Proof Ultrasonic Cleaners

Flammable solvents create hazardous areas

From time to time – but more frequently than we’d like – we get calls from prospects that clean with volatile solvents in a standard ultrasonic cleaner.  Taking the title from the 1983 Tom Cruise flick, this is definitely risky business.  It’s an accident waiting to happen.  Here’s why. Most of us, hopefully, know enough […] Read More



June 23rd, 2014

Understanding Explosion Proof Ultrasonic Cleaner Safety Ratings

The Explosion Proof Apparatus label on Electrowave EW benchtop and ES industrial ultrasonic cleaners offered by Tovatech indicates that they comply with several National Electric Code (NEC) and National Fire Protection Association (NFPA) criteria.  It is important to understand that the compliance relates to the equipment only, and not to the surrounding environment.  We’ll get […] Read More



May 30th, 2014

Safety Options for Ultrasonic Cleaning Solvents

An explosion-proof wall-mounted ventilating fan

Rules and options concerning the use of solvents in an ultrasonic cleaner are generally under the control of site safety personnel who follow industry guidelines on the topic.  Among areas of concern are that volatile ultrasonic cleaning solvents such as IPA, acetone and toluene present hazards both in terms of potential explosions and in subjecting […] Read More



February 19th, 2014