Ultrasonic Cleaners

How does an ultrasonic cleaner work?

An ultrasonic cleaner transfers acoustic energy into water or a compatible cleaning solution. Microscopic cavitation activity in the liquid helps loosen particles from submerged surfaces, including small joints, grooves and recesses that are difficult to reach with a cloth.

The item is cleaned without direct brushing during the cycle. This does not make ultrasonic cleaning suitable for every material, coating or construction. Always confirm that the item can be immersed and exposed to ultrasonic action.

Compact 45 kHz ultrasonic cleaner

The smaller model is designed for cleaning compact personal accessories at home. It operates at 45 kHz, uses a rechargeable battery and is charged through the supplied USB cable. The housing measures 24 × 11 × 7.5 cm.

Operation involves filling the container, fully immersing a compatible item and starting the cycle with the power button. Its compact format is useful when storage space and cordless operation are priorities.

600 ml ultrasonic cleaner with adjustable cycles

The larger model has a 600 ml stainless-steel tank. It operates at 40 kHz with a rated power of 35 W and connects to a 220–240 V mains supply. An LED display shows the selected programme.

Available cycle times are 90, 180, 280, 380 and 480 seconds. The unit also has a degas mode that stops automatically after 300 seconds. Accessories include a fine-mesh basket and a holder for bracelets, watches and similarly shaped items.

The internal chamber measures 15.5 × 9.5 × 5 cm. Check these dimensions carefully, as the stated tank capacity does not guarantee that every item will fit.

What can be cleaned ultrasonically?

The product pages list jewellery, glasses, bracelets, watches, dentures, orthodontic appliances and metal beauty or hairdressing tools among the intended applications. Suitability still depends on the material, construction and ability of the individual item to withstand complete immersion.

Take particular care with:

• watches and objects containing mechanisms or electronics,
• glasses with specialist lens coatings,
• jewellery containing glued components,
• soft, porous or delicate gemstones,
• cracked, loose or previously repaired items,
• products whose manufacturer prohibits immersion.

When compatibility is uncertain, consult the item manufacturer or an appropriate specialist such as an optician or jeweller.

How to choose an ultrasonic cleaner

A rechargeable USB model may suit occasional cleaning of small accessories. Consider the 600 ml mains-powered unit when you need a larger chamber, selectable cycle times, a basket and a dedicated holder.

Important points to compare include:

• internal chamber dimensions,
• tank capacity,
• operating frequency,
• rechargeable or mains power,
• adjustable cycle times,
• included baskets and holders,
• materials you intend to clean,
• approved cleaning liquids.

Do not choose a unit by its external dimensions alone. The usable chamber size determines whether an item can be positioned and submerged correctly.

How to use an ultrasonic cleaner

First confirm that the item is suitable for ultrasonic cleaning and full immersion. Fill the tank with water or a cleaning solution approved for both the device and the item. Do not exceed the marked maximum level.

Arrange the objects so the liquid can reach the dirty surfaces, close the lid and start the required cycle. When cleaning is complete, remove the items, empty the tank and clean it according to the instructions.

Never operate an ultrasonic cleaner without liquid. Avoid unapproved, flammable or materially incompatible solutions. The product page for the larger model also states that it should not run continuously for longer than 60 minutes.

Ultrasonic cleaning is not sterilisation

Ultrasonic treatment is a cleaning process used to remove soil and deposits. It should not be presented as validated disinfection or sterilisation.

For beauty, dental or medical instruments, ultrasonic cleaning may form an initial preparation stage. Any required disinfection or sterilisation must follow the procedures appropriate to the instrument and its intended use. A domestic ultrasonic cleaner does not replace an autoclave or another validated sterilisation process.

FAQ – Frequently Asked Questions

What does an ultrasonic cleaner remove?

It helps loosen grease, deposits and everyday dirt from submerged surfaces. Activity in the liquid can reach small grooves and joints that are difficult to clean manually.

Can all jewellery be cleaned ultrasonically?

No. Jewellery containing glued parts or delicate, soft or porous stones may be unsuitable. Check with the manufacturer or a jeweller before cleaning.

Can I place an entire watch in the tank?

Only when the watch manufacturer permits full immersion and ultrasonic cleaning. Otherwise, clean only detached components confirmed as compatible.

Does an ultrasonic cleaner sterilise instruments?

No. Ultrasonic action helps clean instruments but does not replace a validated disinfection or sterilisation process.

Can I use plain water?

The product instructions permit water. Any additional solution must be compatible with both the cleaner and the material being cleaned.

Can the cleaner run without liquid?

No. Never switch on an ultrasonic cleaner with an empty or dry tank.

What is the difference between the available models?

The compact model operates at 45 kHz and has rechargeable USB power. The 600 ml version is mains-powered, operates at 40 kHz and includes adjustable timers, an LED display, degas mode and additional holders.

How do I select the correct tank size?

Compare the object with the internal chamber dimensions rather than the overall dimensions of the appliance. The item must fit without exceeding the maximum liquid level.