Ultrasonic cleaners use high-frequency sound waves to create microscopic bubbles in a liquid. These bubbles implode in a process called cavitation, removing even stubborn dirt from surfaces—even in the finest grooves and hard-to-reach places.

Ultrasonic cleaners are suitable for a wide variety of objects, including jewelry, eyeglasses, coins, medical instruments, tools, carburetor parts, hearing aids, dentures, watches, CDs/DVDs, and laboratory equipment. Important: Delicate materials such as pearls, opals, or painted surfaces are not suitable.

Yes, distilled water is sufficient for many applications. However, for optimal results, suitable cleaning concentrates should be used that are specifically tailored to the material and degree of soiling (e.g., EM-080 Universal, EM-100 Deoxidation, EM-404 for aluminum parts).

Depending on the level of dirt, this takes 3 to 15 minutes. For very heavy deposits, a longer cleaning time may be necessary. Many devices have a timer.

Not all materials are suitable for ultrasonic cleaning. Delicate gemstones (e.g., opals, emeralds, pearls), wood, leather, or certain plastics can be damaged. In these cases, alternative cleaning methods should be used.

Yes, coarse dirt and food residue should be removed before placing the parts in the ultrasonic bath. This extends the lifespan of the cleaning agent and improves the results.

As soon as the fluid becomes visibly dirty or its cleaning performance deteriorates significantly. Daily cleaning is recommended for commercial applications.

Yes, as long as they don't touch each other. Items should be placed in the cleaning basket and not directly on the tub floor to avoid damage.

Only to a limited extent. Electronic components must not be immersed in water. Only robust, waterproof components or removable parts can be cleaned. Circuit boards and print heads can be treated with special processes and solutions.

Distilled water prevents limescale deposits in the tank and on the cleaned items. This is especially important for jewelry, glasses, and coins to avoid stains.

40–60°C is ideal. Heat significantly enhances the cleaning effect. Some devices have a built-in heater.

Yes, items should be rinsed with clean water and dried thoroughly after ultrasonic cleaning. Metal parts may require a post-treatment with oil (e.g., tools or weapon parts).

After each use, the cleaning solution should be disposed of and the tank rinsed with water. Deposits at the bottom can reduce performance. The device should also be degassed regularly and not left idle.

Yes, ultrasound removes not only dirt, but also bacteria, germs, and residues. Special disinfectant concentrates are available for medical and dental applications (e.g., the Stammopur range).

• Household appliances: small tank volumes (0.5–2 liters), ideal for jewelry or glasses.
• Professional/industrial devices: large tanks (up to >10 liters), higher performance, heating function, longer service life, for workshops, laboratories or medical practices.

Absolutely not; the use of chlorinated and fluorocarbons is also prohibited for occupational health and environmental reasons.

The ultrasound is inaudible. However, the device generates cavitation, which creates a hissing sound through implosions. This sound is inaudible to the human ear.

The frequency between 20-40kHz is therefore not audible.

This is even recommended. Tap water offers excellent properties for cleaning in an ultrasonic bath, as the minerals also enhance the ultrasound.

If the water is too hard (you can obtain this information from your water supplier), a degassing process should be carried out before cleaning.

In addition to deep pore cleaning, ultrasound also reduces the cleaning time. With the addition of a suitable cleaning concentrate, this can be reduced by up to 80%, to just a few minutes. The cleaning efficiency can be further increased by heating the bath temperature. Some cleaning concentrates only achieve their full effectiveness with heated ultrasonic devices. Cleaning concentrates are biodegradable and dissolve and bind dirt particles.

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Basically, all solid materials. In jewelry, soft stones such as opals, corals, etc., should not be cleaned in an ultrasonic bath.

When ultrasound is introduced into liquids, microscopic vacuum bubbles are created that immediately implode. This process is called cavitation. The individual cavitation bubbles then blast the dirt off the hard surface of the item being cleaned. However, the surface is not damaged. The result of ultrasonic cleaning is immaculately clean parts.

The internal basket size should always be used as a guideline. Since all EMAG ultrasonic tanks are made of stainless steel, which is not immune to scratches or damage, it is always advisable to use a cleaning basket (usually included). Your product should have sufficient power for your intended use. Rule of thumb: The larger the device, the greater the power it can generate. The larger the product, the more power is required to achieve a sufficient cleaning result. The more contaminated a product is, the more power is required to clean it. Once you have decided on a size, it's only a matter of the series. Here is an overview of all EMAG series:

Emmi HC Series: Impresses with its robustness thanks to its stainless steel housing. Equipped with a timer, heat output control, and ultrasonic control.

Emmi H Series: This series is characterized by its high level of robustness and state-of-the-art ultrasonic technology. It's equipped with a timer and heat output control.

Emmi D Series: Extremely high performance, robustness thanks to stainless steel, and the latest generation of ultrasound are the hallmarks of the new D Series. Equipped with a timer, heat output control, ultrasonic control, degassing function, and sweep technology.

If you have any further questions, our service team is always available from Monday to Friday between 9:00 a.m. and 5:30 p.m. at the following number: 06105/406730.

Not suitable for smaller plastic or composite parts, nor for disinfection. Products made of multi-composite components and metal parts with heavy contamination are usually cleaned much more effectively with heat. The best cleaning results are achieved with the correct heat setting, the correct water-detergent mixture, and the correct cleaning time.

Ultrasonic devices are not kettles and are not designed to reach high temperatures instantly. Therefore, they require some time to reach the correct temperature.

The following instructions assume the use of ultrasound during the heating phase (water at room temperature):

0.8-6.0 L

30°=10-15 min., 50°=30-40 min., 70°=60-90 min.

8.5-13 L

30°=10-20 min., 50°=45-60 min., 70°=80-90 min.

28-80 L

30°=15-25 min. 50°=45-60 min., 70°=80-90 min.

Unfortunately, this question cannot be answered satisfactorily for everyone. Rather, cleaning with an ultrasonic bath is like conducting a series of experiments in a laboratory. What may be a solution for one person presents new problems for another.

Nevertheless, we hereby provide you with a brief guide for the most common cleaning cases:

Glasses: EM-080, max. 3%, 1-2 minutes depending on the level of contamination and the device, without heating. Cleaning can easily be done several times a day without causing damage.

Prostheses and hearing aids: EM-070, max. 2-4%, 5-15 min. depending on contamination and device, without heating

Jewelry and coins (cleaning): EM-080, EM-300, max. 5%, 5-15 min. depending on contamination and device, up to 50 degrees

Circuit boards: EM-303, 1-4%, 10-15 min. depending on contamination and device, 30-40 degrees

Stainless steel and aluminum (carburetors, weapon parts, engine parts, industrial metal plates): EM-080, EM-300, EM-404, 3-7%, 10-40 min. depending on contamination and device, up to max. 65 degrees