List of Articles in the Category Ultrasonic Cleaners

How to Select the Best Flammable Liquid Ultrasonic Cleaner

Ultrasonic Cleaning with Flammable LiquidsFlammable liquid ultrasonic cleaners may often be required when contaminants are difficult to remove and where residues that may remain after using conventional water-based biodegradable cleaning solutions are unacceptable.  Flammable liquid (also called volatile solvent) ultrasonic cleaners can overcome these challenges as we will explain later in this post.

But first a short tutorial.

What is a Flammable Liquid?

They are not all exactly the same.  Flammable liquids have different flashpoints. In brief, the lower the flashpoint the more flammable they are, which is an important consideration when specifying an ultrasonic cleaner for flammable liquids.  

The American Chemical Society publishes a table of  common organic solvents that includes flash points.  Examples of low flash point volatile solvents are 1-propanol at 59⁰F, acetone at -4⁰F and toluene at 39⁰F.  Solvents with higher flashpoints include NEP (N-Ethyl-2-pyrrolidone) or NMP (N -Methyl-2-pyrrolidone) at or above 131˚F.

It’s the Fumes, Stupid!

In chemical terms … Read the rest

How to Pick the Best Ultrasonic Cleaner

Selecting the Best Ultrasonic CleanerTips on Selecting the Best Ultrasonic Cleaner

So, you’ve landed here because you’ve heard about ultrasonic cleaning and how wondrous it works in removing almost any contaminant from almost any surface that can be immersed in an aqueous cleaning solution.  The task you have now is how to select the best ultrasonic cleaner for the cleaning challenges you have in mind. 

Here we offer some useful suggestions.

Why Selecting an Ultrasonic Cleaner is Important

If you’re interested in selecting an ultrasonic cleaner for your cleaning operations you’ve probably done a bit of research and found that choices seem endless.  The range of sizes, shapes, features and pricing is further complexified (our word) by prices for the units.  How do you select an ultrasonic cleaner and be assured that it will do the job you expect of it?  

This post does not get into pricing.  What we hope to do here … Read the rest

How to Select an Ultrasonic Cleaning Solution

ultrasonic_cleaing_solution_selection_v3Benchtop and industrial ultrasonic cleaners provide outstanding cleaning results in thoroughness and speed for applications from watch making to jet engine components and virtually anything in between that can be safely wetted.  Largely responsible for this is the variety of ultrasonic cleaning solutions provided by manufactures to target both broadly defined and highly targeted cleaning challenges. Selecting the right ultrasonic cleaning fluid is not a hit-or-miss proposition.  Several considerations come into play.  

Ultrasonic Cleaning Solution Selection Tip No.1

What is the contaminant?  Put another way, what do you want to remove by an ultrasonic cleaning process?  Examples include

  • grease, grime and grit on engine and drive train components
  • salt and other residues on scuba gear
  • soldering residues and other contaminants on PCBs
  • burned on plastic injection mold deposits
  • grit and grime on cherished vinyl LP records
  • contaminants on surgical and dental instruments
  • tarnish or old paint on brass, copper and
Read the rest
What is a Heated Ultrasonic Cleaner?

What is a Heated Ultrasonic Cleaner?

The simplistic answer to “what is a heated ultrasonic cleaner?” is simply an ultrasonic cleaner that has the ability to heat the cleaning solution. More important is a knowledge of the role of heat (temperature) in ultrasonic cleaning and the enhancements or disadvantages heat can impart to the ultrasonic cleaning process.  Also important is keeping in mind the fact that heat generation is a natural byproduct of an ultrasonic cleaning cycle.… Read the rest

Injection Mold Life Extended with Ultrasonic Cleaning

Before and After Ultrasonic Cleaning Injection Molds

Injection molds used to form plastic products can represent sizeable investments and are characterized by complex shapes, precision finishes and vents.  Cleaning plastic injection molds must be accomplished on a regular basis and in such a way that removes all traces of burned on deposits from surfaces and residual plastic in vents without scratching or otherwise mechanically damaging mold surfaces.   

“Our investment in injection molds can reach tens of thousands of dollars each,” says Roger Wheeler, tooling manager at PAM Injection Molding based in Kernersville, NC. “While different molds have different surface tolerances, customer-demanded tolerances for a mold surface can be as precise as 0.0002 inch. That’s why,” he says, “longer injection mold life depends highly on not only keeping them clean but conducting mold cleaning operations in such a way that extends their life by maintaining surface finish tolerances.”… Read the rest

Ultrasonic Cleaners for Jet Engine Maintenance

Ultrasonic Cleaners for Jet Engine Maintenance

Regular maintenance procedures are strictly prescribed for aircraft jet engines and include thorough cleaning and inspection of fuel nozzle assemblies.  “An example is the highly popular Pratt & Whitney PT6A engine which requires cleaning engine fuel nozzle manifold adapter assemblies every 400 hours of operation,” says Scott Pottebaum, Director of Technical Services, Elliott Aviation in Des Moines, IA.   “Overhaul and maintenance procedures are clearly spelled out in the P&W Maintenance Manual; service organizations such as Elliott Aviation are responsible for performing these procedures then testing the engines before they are approved for return to service.”… Read the rest

Ultrasonic Cleaning of Scuba Gear

Ultrasonic Cleaners for Scuba Gear Maintenance

Perfectly functioning valves and regulators are essential for reliable air supply to scuba diving enthusiasts. Fresh water rinsing scuba regulators after each dive is part of the ritual; ultrasonic cleaning of disassembled regulator components should be a part of any organization renting gear or offering scuba diving excursions.

A good example is Florida based All Star Liveaboards, offering scuba diving enthusiasts “the best in liveaboard scuba diving and snorkeling in the Caribbean.”  Living aboard the Aqua Cat or other company vessels participants enjoy  week long cruises  from Nassau, Bahamas, to the islands of the Exuma Sound.  Participants include experienced divers with their own or All Star’s rental gear and novices wishing to learn the sport from All Star’s certified on-board scuba instructors.… Read the rest

Ultrasonic Cleaners for Flammable Solvents

ultrasonic cleaning using flammable solvent

Ultrasonic cleaners are widely recognized as providing outstanding cleaning action thanks to the cavitation produced by the equipment’s generator powered ultrasonic transducers.  But when cleaning with flammable solvents it is imperative that explosion resistant ultrasonic cleaners are employed in the shop, and that the equipment be located in an area equipped with an adequate exhaust system to vent fumes to an exterior location.

Flammable solvents are often preferred for tough cleaning jobs such as degreasing and removing tenacious contaminants like paint and adhesive residues.  Special care must be exercised when cleaning with flammable solvents under any circumstance, but especially when using an ultrasonic cleaner to both speed the process and improve cleaning results.   Unless they are specially constructed, ultrasonic cleaners present two risks:  sparks from internal electronics igniting spilled solvents and fumes, and vapors from solvent evaporation creating a hazardous area in the vicinity of the unit.   … Read the rest

Ultrasonic Cleaning Preserves New and Old Vinyl Records

Ultrasonic Cleaning of Vinyl RecordsVinyl records, the 33-1/3 RPM LPs and 45 RPM (juke box) discs, first came on the market in 1948 and in the 1950s grew tremendously in popularity until the advent of CD recordings.  But then something strange happened. Sparked by music aficionados’ appreciation of the unique sound quality of vinyl vs. digital CDs and the ability of ultrasonic cleaning to preserve and restore these records, vinyl sales increased 32% to $416 million in 2015, a 28-year high according to the Recording Industry Association of America.

The resurgence of interest in vinyl recordings has led to a new service industry specializing in cleaning the discs to preserve their unique sound quality and minimize wear.  A leader in this service is Pure-Grooves, LLC based in the Chicago suburb of Berwyn, IL.  Company founder Vince Tornabene has developed a  vinyl record restoration service based on a dual-frequency, adjustable power Elma P60H ultrasonic cleaner … Read the rest

New E Plus Line of Elma Ultrasonic Cleaners Available from Tovatech

Elmasonic E Plus Ultrasonic Cleaner BrochureUpgraded E Plus Features Target Parts Cleaning and Laboratory Applications

Ultrasonic cleaning equipment distributor Tovatech announces the availability of the new Elmasonic E Plus line of 37 kHz benchtop ultrasonic cleaners in 9 stainless steel tank capacities from 1/4 to 7-½ gallons. Replacing the Elmasonic E line, the newly designed E Plus ultrasonic cleaner units deliver about 30% more ultrasonic cleaning and mixing power.

Microprocessor-controlled Power Tracking assures reproducible performance run-to-run.

Operator-activated Pulse produces intermittent bursts of high power intensity to remove stubborn contaminants, degas solvents and to mix, disperse and dissolve lab samples.  An automatic Sweep mode ensures even distribution of cleaning action throughout the ultrasonic bath.  The choice of Sweep and Pulse functions addresses the full range of ultrasonic unit applications in scientific and medical laboratories as well as industrial shops.… Read the rest