How Ultrasonic Cleaning works

What is Ultrasonic Cleaning?

ultra 8050 ultrasonic cleaner

Ultra 8050H

ultra 7000 ultrasonic jewellery cleaner

Ultra 7000

1. What is ultrasonic cleaning?

Ultrasonic is sound generated above human audible level. In real life, high pitch sound is created by high frequency and alternatively the low and base tone is created by low frequency. Frequencies above 16 kHz in general are being considered as ultrasonic. Typical ultrasonic frequencies used for cleaning purposes are from 20 kHz to 80 kHz.

2. How sound can clean?

A physical effect called cavitations, is generated in liquid by an ultrasonic transducer and is responsible for the cleaning process. Cavitations are formed when ultrasonic travels through liquid. When a sound wave travels through water it stretches and compresses the water medium to transmit sound. When the amplitude of such sound wave increases to a level when water cannot hold the stretch, the sound literally tears the water apart and millions of vacuumed bubbles are formed under such negative pressure. The sizes of the vacuumed bubbles increase until their equilibrium are reached, they are rapidly compress by water and create millions of tiny liquid jets. The jet actions release tremendous amount of energy stored within vacuumed bubbles. Each bubble is estimated to have a temperature of more than 5000°C and a pressure of more than 10,000 PSI at molecular level when such implosion takes place. The huge amount of pressure releases at each bubble provides an ideal physical phenomenon responsible for the effective cleaning action ultrasonic cleaner offers.

3%20diamond%20ring                              gold ring                             gold-watch

3. Can ultrasonic clean cracks?

Yes, the cavitations take place everywhere liquid can reach. During the cleaning process the article being cleaned is submerged into water or cleaning solution, millions of micro sized bubbles created by ultrasonic are capable of reaching into fine trends or cracks to clean. This phenomenon is especially useful for efficient cleaning of intricate patterns on, for example, fine jewellery.

5. Is ultrasonic the answer to environmental-friendly cleaning for the home?

Yes as the main ingredient is tap water, we believe our range of patented ultrasonic cleaners is environmentally friendly with top quality cleaning results. No longer will home users need to use environmentally unfriendly chemical based cleaning products which in most cases do not truly clean. It is only now that the ultrasonic technology has been developed in such a way it is affordable for home use.

6. What can I clean using ultrasonic technology?

This list is almost endless. Provided the product is non porous and can normally be immersed in water almost anything can be thoroughly cleaned. Here are some examples:

  • Jewellery especially gold, silver & platinum
  • Watchstraps & Waterproof Watches
  • Coins and other collectibles
  • Glasses & Sunglasses
  • PCB Boards etc
  • Engine/Model parts
  • Toothbrushes & Dentures
  • CD & DVD’s (only with the Ultra 6000 model)
  • 7. What can I not clean?There is very little, but if you have any doubt we strongly recommend you contact the manufacturer of the item you want to clean first. However we do know that we would not recommend the following without getting approval from the manufacturer first: Some precious stones eg, emeralds Some plastics are porous and the ultrasonic cleaning can cause some whitening
  • DO NOT clean precious stones without gaining approval from a jeweller first. Ultrasonic cleaning is not suitable for certain types of precious stones. Please use the table below as a guide only
    Precious Stone Ultrasonic Clean   Precious Stone Ultrasonic Clean
    Amber No Opal No
    Amethyst No Pearls No
    Aquamarine No Perdot No
    Blue Topaz No Rose Quartz No
    Citrine No Ruby Yes
    Diamond Yes Sapphire Yes
    Emerald No Smoky Quartz No
    Garnet Yes Tanzanite No
    Jade No Topaz No
    Onyx No Tourmaline No

    8. What cleaning solutions do I need?

    Normally, the only cleaning solution required is warm tap water for all our ultrasonic cleaners. Sometimes users add a small amount of washing up liquid to help hold the dirt in the water. However, for the best results, use a cleaning solution (we sell SeaClean, a natural cleaning fluid) to give sparkle to your jewellery or precious metals.

    10. What maintenance does my ultrasonic cleaner require?

    All that is required is that after use you empty the tank of water and wipe clean. Because of the power of the cleaner if you were not to empty and wipe the tank then tiny metal particles will build up and over time could pierce a hole in the stainless steel water tank rendering the ultrasonic cleaner useless.

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