Ultrasonic Cleaning

Ultrasonic Cleaning

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Contact Us

Ultrasonic Cleaning

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Versatile Selection of Ultrasonic Cleaner Solutions

Techspray offers a variety of solvent and water-based ultrasonic cleaners. An efficient ultrasonic cleaner is designed to work in a variety of applications such as electronics cleaning, industrial cleaning, machinery and much more.

  • Techspray Renew - Water-based flux removers with zero GWP and low VOC.
  • PWR-4 – Cost effective, nonflammable, and low toxicity, so ideal replacement for n-propyl bromide (nPB) and other toxic industrial solvents.
  • G3 - a Top-selling nonflammable solvent that’s effective on the broadest array of soils.
  • Precision-V – Nonflammable replacement for AK225, and ideal for aviation, aerospace, medical and military applications.

For ultrasonic cleaning, safety is our top priority:

  • Flammability - Choosing a nonflammable cleaner is generally the safest choice. Otherwise, ventilation has to be explosion-proof and adequate to remove all the flammable fumes so they don't accumulate and create a significant hazard. It is also common to clean in a heated ultrasonic bath for extra solvency, which makes the use of a nonflammable cleaner all the more critical. Techspray offers three brand names of nonflammable solvents: G3, PWR-4, and Precision-V.
  • Toxicity - Techspray offers innovative solvents that are much safer than the four most common industrial solvents: TCE, nPB, Perc and Methylene Chloride and quickly clean the most difficult greases and fluxes. None of Techspray ultrasonic cleaners contain these highly toxic solvents, and PWR-4 is specifically engineered as a replacement.


What Is the Best Cleaning Solvent for an Ultrasonic Process?

If the chemistry is a good solvency match to the soil, less sonic agitation will be needed. This allows you to run your cleaning process more quickly, at lower temperature, and lower amplitude, decreasing the likelihood of damaging sensitive components. The following are characteristics to look for when reviewing options: 1) Solvency – Ability of the cleaner to breakdown and dissolve the soil. For a quick evaluation of solvency, place a drop of cleaner directly on the soiled part, let it sit for a few minutes, and they blot it dry. From this simple test, you can generally tell if the chemistry is a good match to the soil. If the cleaner just sits on the surface of the soil, and doesn’t wet and start to break down the soil, move on to the next cleaner. 2) Surface tension – This impacts how well a solvent can get into tight crevices, like under low stand-off components. 3) Density – Density can have a minor impact on how quickly the sonic waves travel through the liquid, and the amount of cavitation. A higher density material requires more energy to move, so could deplete the energy, thus the cleaning power, by the time it reach the part.

How Do You Maximize Cleaning Performance with Ultrasonic Equipment?

Several adjustments can be made to increase the cleaning performance of your ultrasonic process: 1) Frequency – This is the number of waves in a second, so how “tight” the wave form is. Lower frequencies provide more aggressive cleaning, but more potential of damaging sensitive surfaces and components. High frequency sonic waves can penetrate into tighter areas. As you get over 400 kHz, in the mega-sonic range, the bubble collapse is not as violent due to smaller spacing, so cleaning is often less effective in tight areas. 2) Amplitude – This is the height of the wave, or the loudness. Greater amplitude will generally increase cleaning effectiveness, but also the potential for damage of delicate surfaces or components. 3) Temperature – Increased temperature generally improves the cleaning performance of a solvent. Higher temperature can also reduce the viscosity of the cleaner and increase the surface tension, allowing the solvent to enter tighter areas. Cleaning performance increases significantly if the temperature of the solvent is above the melting point of the soil. 4) Time – Increase the time of the cleaning cycle to compensate for lower than optimal solvency. 5) Chemistry – If the chemistry has a good solvency match to the soil, less sonic agitation will be needed. This allows you to run your cleaning process more quickly, at lower temperature, and lower amplitude, decreasing the likelihood of damaging sensitive components.

How Does Ultrasonic Equipment Work?

An ultrasonic cleaning process utilizes equipment to transmit ultrasound waves, generally between 20-40 kHZ. The transducers send those sound waves through the liquid cleaner, which acts as a transfer medium from the transducers to the parts. At very high frequency, the waves may pass over the surface of the parts, creating agitation through a process called acoustic streaming. As the frequency is reduced, it creates cavitation within the liquid. These voids quickly collapse, generating heat and shock waves, which creates agitation in the cleaning process.