40KHz ULTRASONIC CLEANERS / MOST POPULAR GENERAL-USE ULTRASONIC FREQUENCY
- High-frequency ultrasonic systems generally produce a very evenly distributed cleaning effect, but a less powerful one,
- 40KHz ultrasonic cleaners are quieter in operation than a 20KHz system, and produces a more gentle cleaning action.
It is appropriate for the removal of common contaminants from parts,
but may not consistently remove contaminants from tight tolerance
- 40KHz also has a tendency to remove particles which are smaller than 20KHz.
- 40KHz ultrasonic cleaners are less destructive to the cleaning tank than 20KHz systems.
WHEN TO USE 40KHz ULTRASONIC CLEANERS:
- When Cleaning Medium to Heavy Parts
- When Removing Most Contaminants Found in Manufacturing Environments
- When Parts have Some Detail, but Not ultra-fine Detail, such as small blind holes, threaded areas, and Similar Details
20KHz ULTRASONIC CLEANERS / HEAVY DUTY CLEANING FOR SIMPLE PART DESIGNS
Although the 20KHz frequency produces a less evenly distributed
cleaning effect, the scrubbing action that is produced is very powerful,
which can be positive or negative. The
power is of benefit when cleaning heavy parts, such as a plastic
injection mold weighing 2000 pounds, or cleaning those parts with
highly-bonded contaminants, such as burned carbon. The
power is destructive when cleaning sensitive components, such as
aluminum or soft metals, or those parts with finely-machined detail.
- 20KHz system may also remove thicker contaminant layers faster than higher frequencies.
Since 20KHz ultrasonic systems essentially "drill holes" on the surface
of the part with a large amount of power, this frequency tends to
remove thick layers of contaminants in large chunks, while higher
frequencies remove the same contaminants by attempting to gently remove
layer by layer.
- As such, 20KHz systems may be more effective when removing paint, thick greases or coatings, or other similar contaminants.
WHEN TO USE 20KHz ULTRASONIC CLEANERS:
- When Cleaning Large and Heavy Parts with Little Detail.
- When Removing Highly-bonded Contaminants.
- When Higher Frequencies Fail to Clean a Part.
- When Cleaning Thick Contaminants Layers.