Two Practical Solutions to Clean Lab Sieves

Ultrasonic Sieve Cleaning

Cleaning fine mesh particle analysis lab sieves becomes more difficult as mesh size decreases, making it more likely that particles become trapped in fine sieve openings.  Manual cleaning test sieves has drawbacks including potential damage to the mesh and failure to achieve 100% particle removal.  Here are two practical solutions to clean lab sieves as well as perform other important functions in food and pharmaceutical research facilities.

Lab Sieve Cleaning Solution No. 1

One way to solve the problem is by combining the 7.5-gallon Elmasonic EP300H ultrasonic cleaner with the Elma SRH 4/200 sieve rotation holder.

Sieve Rotation Holder
SRH 4/200 Sieve Rotation Holder

Ultrasonic cavitation produced by the Elmasonic EP300 H creates billions of minute vacuum bubbles.  These implode vigorously against the surfaces of objects being cleaned to quickly and safely dislodge contaminants.

The unit operates at 37 kHz ultrasonic frequency.  Features include a heater (30⁰ – 80⁰C) and a timer (1 … Read the rest

Ultrasonic PCB Cleaners for New and Reconditioned Boards

Fast, Safe Ultrasonic PCB Cleaners for New and Reconditioned Boards

Removing soldering flux and residues from new PCBs and dirt when reconditioning PCBs by using an ultrasonic PCB cleaner is faster and more gentle than soaking and scrubbing with sprays and solvents.  Manual PCB cleaning is time consuming, can damage delicate PCB assemblies and can be environmentally unfriendly.  An ultrasonic PCB cleaner provides your best assurance that contaminants have been completely removed from new or reconditioned board configurations. 

 How an Ultrasonic PCB Cleaner Works

If you are familiar with ultrasonic cleaning proceed to the next section.

Ultrasonic cleaners come in a variety of sizes and capacities ranging from benchtop to floor mounted industrial units.  Regardless of size, ultrasonic cleaners work in the same way. 

A tank sized to accommodate objects being cleaned contains a biodegradable cleaning solution formulated for the task at hand. 

Controls range from a simple on-off switch to more sophisticated timers, heaters and other features such as … Read the rest

Ultrasonic Cleaning Once-Fired Brass

Ultrasonic Cleaning Once Fired Brass

A Tovatech Case Study

A recent report by IBISWorld states that the U.S. Shooting Range Industry market is estimated at $4 billion and encompasses more than 11,000 businesses.  Many shooting enthusiasts, whether pistol or rifle, save on the cost of purchasing new ammo by cleaning and reloading spent cartridges, called once-fired brass.  Here we describe how a professional employs an ultrasonic cleaner to restore some 250 pistol casings a week and 200 rifle casings a month.

A Case Study on Cleaning Once-Fired Brass

Brass - Before Ultrasonic Cleaning
Brass Before Ultrasonic Cleaning

Seattle resident Subhro Kar is a Product Security Engineer for Red Hat Software and volunteers as a search and rescue pilot. Hobbies include photography, hunting and participation in precision shooting competitions.  He shares with Tovatech his recommendations on employing ultrasonic energy to clean once-fired brass.

Tovatech: What led you to investigate then adopt cleaning and reloading once-fired brass?

Mr. Kar:  I do … Read the rest

More on Selecting Ultrasonic Cleaning Solutions

As we suggested in our blog post How to Select Ultrasonic Cleaner Solutions* cleaning solution chemistry has an important bearing on the success of operating an ultrasonic cleaner.  Here we will look at some other considerations to keep in mind.

For example, the choice of a cleaning chemistry depends not only on the surface material and contamination, but also on the use and level of cleanliness required after cleaning.  Here are but two of many examples we could share:

For precision cleaning prior to coating operations you need a cleaner that easily rinses residue-free.  This helps ensure that coatings such as powder, anodizing, chromium plating or paint will fully adhere to the surface.  For applications such as these we strongly suggest EC 260 d&s neutral foam-inhibited concentrate.

There are less-demanding levels of cleanliness for other applications.  If your shop cleans, repairs or reconditions used equipment made of materials such … Read the rest

Lab Ultrasonic Cleaner Features Uniform Sonication

Elmasonic P Display

Uniform sonication, or perfect sound field distribution, a desirable feature for ultrasonic cleaners used in analytical and medical laboratories as well as other professional settings, is achieved in the multi-functional Elmasonic P30SE available from Tovatech.  Uniform sonication assures users that instruments and lab samples in flasks or beakers receive “equal treatment” regardless of their position in the tank.   

The Secret to Uniform Sonication

Elma researchers determined that the key impediment to uniform sonication is interference due to the tank drain duct found on most benchtop ultrasonic cleaners.  This was visually demonstrated in a drain-equipped unit: cavitation in a beaker suspended on the drain side of the tank was not nearly as vigorous as in the beaker on the opposite side.  Based on this the 0.75 gallon P30SE has no drain and demonstrates homogeneous sonication.*

A Highly Versatile Lab Ultrasonic Cleaner

Elmasonic P30SE

The dual range 37/80 kHz frequency Elma Read the rest

Ultrasonic Cleaners and How they Work

Ultrasonic cleaners will probably never rank as high as a hot air fryer or microwave oven on a family wish list but according to recent statistics the market for versatile and thorough ultrasonic cleaners will grow to $738.1 million in 2027 from $604.8 million in 2019.  While householders and DIY mechanics are increasingly attracted to ultrasonic cleaners the study citied key growth areas as

  • The healthcare industry, where they are used for cleaning surgical, medical and dental instruments to meet strict standards
  • The automotive industry for thorough cleaning complex engine parts such as carburetors and fuel injectors
  • The aerospace and defense industry to remove contaminants from critical parts during manufacture as well as for maintenance and operation procedures
  • The electronics industry both for manufacturing and reconditioning PCBs and similar delicate components found in computers and mobile devices   

Ultrasonic Cleaners:  Not a “New” Technology

Author Timothy J. Matson notes in … Read the rest

5 Key Points to Selecting the Correct Ultrasonic Cleaner Size

How to Select an Ultrasonic Cleaner Size

Ultrasonic parts cleaners are manufactured in a tremendous variety of sizes.  By “size” we mean the dimensions and capacities of tanks in which ultrasonic parts cleaning is accomplished.  For example the Elmasonic E Plus series is offered in 9 tank capacities from 0.25 to 7.5 gallons and the Select Series in 11 capacities from 0.7 to 23 gallons.  Industrial-sized units such as SHIRACLEAN can hold 100 gallons or more.  This post will help you select the correct ultrasonic parts cleaner size. 

Five Points to Selecting your Ultrasonic Parts Cleaner Size

Here are the key points to consider:

  1. Parts you are cleaning
  2. Cleaning tank dimensions
  3. The importance of “working depth”
  4. The role of cleaning baskets
  5. Cleaning solution volume and service volume

1. What Parts are you Cleaning?

Ultrasonic parts cleaning has proved a very effective and economical way to remove all types of contaminants from nearly anything that can be safely … Read the rest

Introducing the Elmasonic Select Line: Programmable Cleaning, Five Ultrasonic Modes

Introducing the Elmasonic Select Line

Elmasonic Select ultrasonic cleaners available from Tovatech feature 5 ultrasonic modes to simplify task setting and supervision for parts cleaning and maintenance, sample prep, and solvent degassing plus up to 4 commonly used programs for quick call up and reproducible results. 

  • 5 ultrasonic modes for powerful, rapid, thorough, reproducible cleaning and mixing
  • 3 cleaning cycle parameters:  mode, temperature to 80⁰C/176⁰F, and timer to 6 hours
  • Store up to 4 programs for quick call-up and reproducible results
  • Brilliant digital display clearly shows all operating parameters
  • Audio/visual signal at cycle completion
  • 11 tank sizes with operating capacities from 0.7 to 24 gallons

Elmasonic Select Product Features 

Customize your ultrasonic cleaning or sample prep projects by putting these features to work in your shop or laboratory:

Sweep For uniform cleaning via a slight ± variation in ultrasonic frequency
PulseBrief spikes in power to remove stubborn contaminants or for mixing and sample prep
Read the rest

Ultrasonic Cleaning Preserves New and Old Vinyl Records

Ultrasonic Cleaning Vinyl Records Header
Ultrasonic Cleaning of Vinyl Records

A Sound Way to Clean Vinyl Records

Why Audiophiles use Ultrasound to Maintain and Restore Fidelity

The Wall Street Journal reports LP record popularity surged in the U.S., selling 41.7 million units, up from 21.5 million in 2020.  Sales of LPs nearly doubled in 2021, outselling CDs for the first time in 30 years.  Those boxes of vintage vinyl in your attic or garage may also excite collectors willing to pay big bucks. “Collectors know the real vinyl money lies in original pressings and rare vinyl records,” according to an article in Work+Money.

Experts Explain: Ultrasonic Cleaners Maintain New and Restore Vintage Vinyl

Employing ultrasound to maintain new and restore vintage vinyl is accomplished using an ultrasonic cleaner equipped to quickly and safely handle the project.

Cleaning Tips for Vinyl Record Collectors

Gerry, a collector in Spring Hill, Florida, has 4500 LPs and 45s. “For maintaining (or restoring) this … Read the rest

Ultrasonic Cleaner for Dental Instruments

How to Select Dental Ultrasonic Cleaners

Using an ultrasonic cleaner for dental instruments is a recommend practice cited by professional organizations including the American Dental Association, the Food and Drug Administration and the CDC’sSummary of Infection Prevention Practices in Dental Settingsto remove contaminants from reusable dental instruments. 

Clinics employ ultrasonic cleaners for dental instruments before sterilization to avoid heat “baking on” blood, tissue and other organic residues that cause infection problems.  Dental instrument ultrasonic cleaning systems are also ideal for cleaning molds, implant hybrid prosthesis, and removing plaster and cement from bridgework.  

Why Clinics Need an Ultrasonic Cleaner for Dental Instruments

Ultrasonic energy creates billions of minute vacuum bubbles in an ultrasonic cleaning bath that implode with tremendous force when they contact dental instruments. 

The process, called cavitation, reaches into tiny cracks and crevices, quickly and safely blasting loose and carrying away contaminants on dental instrument surfaces.  Dental instrument ultrasonic cleaners are faster, … Read the rest