Ultrasonic machine for jewelry

The ultrasonic machine is a tank with a transducer that produces high-frequency waves. In the liquid they form tiny bubbles that dislodge dirt.

How it is used #

Fill the tank with water and a mild cleaner, lower the piece in a basket and run for 2 to 5 minutes.

Frequency and heating #

The most common work at 40 kHz. A heater speeds up the cleaning.

What not to put in #

Pearls, opals, turquoise, treated emeralds, pieces with glued stones and costume jewelry. See when to use ultrasonic.

Maintenance #

Change the liquid regularly and dry the tank.

Step by step #

1. Fill the tank with warm water and a few drops of mild cleaner.
2. Place the jewel in the basket, not touching the walls.
3. Run for 2 to 5 minutes.
4. Take the piece out, rinse with clean water and dry with a cloth.

Which pieces can be cleaned #

Gold, silver, platinum and most firmly set diamonds, rubies and sapphires. Check beforehand that there are no loose stones: the vibration can dislodge them.

Which pieces cannot #

Pearls, opals, turquoise, oil-treated emeralds, fractured stones, glued pieces and costume jewelry. See when to use ultrasonic and how to clean pearls.

Maintenance #

Change the liquid often, do not rest the jewel directly on the bottom and never run the machine empty.

See also #

• Ultrasonic jewelry cleaner: when to use it and when not to
• How to clean gold jewelry at home
• How to clean jewelry with gemstones