Ultrasonics – Near Field and BEYOND!

The term “near field” is not new to ultrasonic cleaning.  In general, it refers to cleaning parts in near proximity to the ultrasound source.  It is well known that increasing ultrasonic power density can produce improved cleaning results in many cases.  Increasing power density can be accomplished by reducing the size of the cleaning vessel to …

Happy Holidays!

Just about everyone celebrates a holiday at this time of year.  I celebrate Christmas.  This year, my wife and I will be spending the first part of the holiday season break with our daughter, her husband and their son in Frisco, TX.   Then it’s on to Ellicott City, MD to visit our son, daughter-in-law and …

Comments on Ultrasonic Power

My recent blog, Are Ultrasonic Power Ratings Real?, prompted a response from my friend and colleague William Puskas.  Some of you may know Bill as the “Father of Sweep” as he was the first to implement frequency sweeping technology in ultrasonic cleaning equipment decades ago.  He is also the author of a significant number of …

Too Much Soap!

More is better in some cases but when it comes to chemistry in industrial cleaning, using too much is costly and could indicate process problems as well. Cost – First, there is the obvious cost of using more chemistry.  Most aqueous cleaning chemistries range in price from $15 to $40 per gallon but may exceed …

The Purpose of This Blog

I sometimes reflect the purpose of John’s Corner.  It’s really pretty simple – to help those who are interested in industrial cleaning to understand and make the best use of the existing industrial cleaning technology – but maybe it’s more. As most of you may know (it is no secret), I am a former employee …

Are Ultrasonic Power Ratings Real?

Nearly anyone who has been involved in the procurement of an ultrasonic cleaning system has come head to head with watts of ultrasonic power issues.  Variations of an order of magnitude or more are common in ultrasonic watts ratings from competitors selling equipment of otherwise similar size and capacity.  Despite the discrepancies, I don’t believe anyone …