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ULTRASONIC CLEANER - Frequently Asked Questions

How does ultrasonic cleaner work ?

An ultrasonic cleaner is a metal container that has ceramic piezo transducers attached to the side or the bottom of the tank. The high frequency electrical energy that is converted by a transducer into high frequency sound waves – ultrasonic energy. These non-audible sound waves create a scrubbing brush action within the fluid. The ultrasonic energy enters the liquid within the tank and causes the rapid formation and collapse of minute bubbles: a phenomenon known as cavitation. The bubbles rapidly increase in size until they implode against the surface of the item immersed in the tank in an enormous energy release, which lifts contamination off the surface and innermost recesses of intricately shaped parts.

 
What is "cavitation"?

"Cavitation" is the rapid formation and collapse of millions of tiny bubbles (or cavities) in a liquid. Cavitation is produced by the alternating high and low pressure waves generated by high frequency (ultrasonic) sound. During the low pressure phase, these bubbles grow from microscopic size until, during the high pressure phase, they are compressed and implode.

 
How do I get the best ultrasonic cleaning?

There are many considerations important to ultrasonic cleaning. Optimizing these variables will produce the best cleaning. The most important decisions to be made are choosing the proper cleaning solution, cleaning at the right temperature for the correct amount of time, and choosing the right size and type of ultrasonic cleaner.

 
Why is a special solution required for cleaning?

YES, Soils adhere to the parts... if they didn't, the soil would just fall off the parts! The purpose of the solution is to break the bonds between parts and their soils. Water alone has no cleaning properties. The primary purpose of the ultrasonic activity (cavitation) is to assist the solution in doing its job. An ultrasonic cleaning solution contains various ingredients designed to optimize the ultrasonic cleaning process. For example, increased cavitation levels result from reduced fluid surface tension. Selecting the right cleaning solution / media is very critical and it's based on multiple factors.

 
What cleaning solution should I use?

Modern ultrasonic cleaning solutions are compounded from a variety of detergents, wetting agents and other reactive components. A large variety of excellent formulations are available, designed for specific applications. Proper selection is crucial for acceptable cleaning activity and to preclude undesirable reactivity with the part being cleaned. Your POWER CLEAN representative can help you to identify either the optimal 'stock' cleaning formula, or likely candidates to test and evaluate.

What cleaning solution shouldn't I use?

Flammables or solutions with low flash points should never be used. The energy released by cavitation is converted to heat and kinetic energy, generating high temperature gradients in the solution, and can create hazardous conditions with flammable liquids. Acids, bleach and bleach by-products should generally be avoided, but may be used with indirect cleaning in a proper indirect cleaning container, such as a glass beaker, and appropriate care. Acid and bleach will damage stainless steel tanks, and/or create hazardous conditions.

 
When should solutions be changed?

Cleaning solutions should be replenished when a noticeable decrease in cleaning action occurs, or when the solution is visibly dirty or spent. A fresh batch of solution at each cleaning session is usually not required.

 
What is the length of cleaning time?

Cleaning time will vary, depending on such things as soil, solution, temperature and the degree of cleanliness desired. Highly visible removal of soils should start almost immediately after the ultrasonic cleaning action begins. Cleaning time adjustment is the easiest (and most often misapplied) factor used to compensate for process variables. Although new application cycle duration can be approximated by an experienced operator, it usually must be validated by actual use with the chosen solution and the actual soiled parts.

 
What is the optimum cleaning temperature?

Heat usually enhances and speeds up the cleaning process, and most detergent solutions are designed to work best at an elevated temperature. The best way to find the optimum temperature, which will give you the fastest, cleanest and safest results, is to run tests. Usually, the best results are within the 50°C to 65°C range.

 
Is rinsing required after cleaning cycles?

Rinsing is recommended to remove any chemical residue, which could be harmful to the part. Parts can be rinsed right in your ultrasonic cleaner, using a clean water bath, or in a separate tub containing tap, distilled or deionized water.

 

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All round Industrial Cleaner / Degreaser that very effectively removed Oil, Grease, Dirt, Dust very FAST!. Use it with your ultrasonic cleaner or spray wash equipment or immersion tank or manually, this product WORKS!!.

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POWER CLEAN NF

Excellent Aqueous based concentrated alkaline Non Ferrous Cleaner / Degreaser. This Alkaline Industrial Soft Metal Cleaner / Degreaser removes oils, dirt, grease, dust e.t.c from Aluminium, Copper, Brass e.t.c easily and quickly without harming the metals. You will not see any white patches or white rust with this excellent cleaner.

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PC RR 100

Excellent Rust Remover. Easy to use. Dip / Spray and wipe / brush it off to remove the rust from components fast

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POWER CLEAN LF

Low or No Foam Spray Cleaner and Degreaser which provides exceptional cleaning results in conjunction witha hi jet spray cleaning machine.

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POWER CLEAN SS

Stainless Steel Cleaner that works very effectively in different types of SS materail (304, 316...). It cleans and shines stainless steel quickly.

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