1. Are you a factory or a trading company?

We are a factory producing ultrasonic cleaner for jewelry,eyeglasses,dentures,…

2.  Do you have OEM or DEM service?

Yes. Your design,logo and package will be more competitive in your market.


3. Can we place the sample order?

We can support that. Samples are the basis for the decision to purchase bulk.


4. Do you have any MOQ limit for the order?

Yes,we have an MOQ limit,and it depends on which product you choose.

5. What is the payment terms?        
We support T/T, L/C, western union and other payment methods.  


6.  How long is the delivery time?
There are stock products, generally within 3-7 days delivery;OEM and ODM products generally need to be delivered within 25-40 days after receiving the deposit.

7. What is the mode of transportation?

① It can be transported by air (DHL, UPS, FedEx, TNT, etc.), by sea, and train

② FOB, CIF and EXW

8.  Do the products have certificates?

Yes. Our products have CE, UL,Rohs certificates.

9. How to guarantee the quality of the products?

10. We control the quality from the beginning. All the staff will be professionally trained and each position will have production instructions. In addition, there is a QC team to control the quality of the products.


10.  What is the warranty?

· 12 months warranty for Smartclean ultrasonic cleaner.

· If any faulty problem during warranty time, replacement part will be provided with free of charge, only buyer need to bear the freight

· Technical support is also available in whole lifetime


11. What is ultrasonic?

Ultrasonics is the science of sound waves above the limits of human audibility. The frequency of a sound wave determines its tone or pitch. Low frequencies produce low or bass tones. High frequencies produce high or treble tones. Ultrasound is a sound with a pitch so high that it can not be heard by the human ear. Frequencies above 18 Kilohertz are usually considered to be ultrasonic.

The frequencies used for ultrasonic cleaning range from 20,000 cycles per second or kilohertz (kHz) to over 100,000 kHz. The most commonly used frequencies for industrial cleaning are those between 20 kHz and 50kHz. Frequencies above 50kHz are more commonly used for high precision cleaning, removal of small particles and delicate parts.


12. How does the ultrasonic cleaner work?

· Formation

Ultrasonic cleaner mainly consists of ultrasonic generator, circuit controller, transducer and cleaning tank.

· Working Principle

Ultrasonic generator output oscillation power signal of ultrasonic frequency which  is  then  through  changed  into mechanical oscillation with high frequency by transducer; next, the oscillation is introduced into cleaning liquid,causing the cleaning liquid to produce ultrasonic cavitation effect which can generate tens of thousands of tiny  bubbles which are formed at the negative pressure region and fast closed in the positive pressure region;the closed bubbles form ten thousands of instant high pressure of small pressures, and  the continuously generated instant high pressure is like a sequence of small ‘explosion’ to impact the clearances on the surface of object, causing various pollutant sticking to the surface of object to flake off so as to realize the purpose of cleaning.


13. What is “Cavitation and implosion”?

In elastic media such as air and most solids, there is a continuous transition as a sound wave is transmitted.  In non-elastic media such as water and most liquids, there is continuous transition as long as the amplitude or "loudness" of the sound is relatively low.

As amplitude is increased, however, the magnitude of the negative pressure in the areas of rarefaction eventually becomes sufficient to cause the liquid to fracture because of the negative pressure, causing a phenomenon known as cavitation. Cavitation "bubbles" are created at sites of rarefaction as the liquid fractures or tears because of the negative pressure of the sound wave in the liquid.

As the wave fronts pass, the cavitation "bubbles" oscillate under the influence of positive pressure, eventually growing to an unstable size. Finally, the violent collapse of the cavitation "bubbles" results in implosions, which cause shock waves to be radiated from the sites of the collapse. The collapse and implosion of myriad cavitation "bubbles" throughout an ultrasonically activated liquid result in the effect commonly associated with ultrasonics.


14 .Can ultrasonic cleaner damage my parts?

With certain cautions, ultrasonic cleaning is considered safe for most parts. While the effects of thousands of implosions per second is very powerful, the cleaning process is safe since the energy is localized at the microscopic level. The most important cautionary consideration is the choice of cleaning solution. Potentially adverse effects of the detergent on the material being cleaned will be enhanced by the ultrasonics.


15. Is it the battery inside?


16. Can I start the machine without water?

 No.It cause the damage.


17. Can I fill the container with water directly from the running tap?

 No. It would cause the water to enter into the inside of the machine. You can use a cup to fill the container with water.


18. Can the water exceed the MAX line?


19.  why is a special solution required for cleaning?

The purpose of the solution is to break the bond between items and their stains. Water alone has no cleaning properties. The primary purpose of the ultrasonic activity (cavitation) is to assist the solution in doing its job. An ultrasonic cleaning solution contains various ingredients designed to optimize the ultrasonic cleaning process. For example, increased cavitation levels result from reduced fluid surface tension. An ultrasonic solution will contain a good wetting agent or surfactant.


20. What cleaning solution should I use?

Modern ultrasonic cleaning solutions are compounded from a variety of detergents, wetting agents and other reactive components. A large variety of excellent formulations are available, designed for specific applications. Proper selection is crucial for acceptable cleaning activity and to preclude undesirable reactivity with the part being cleaned.


21. What cleaning solution should not I use?

Flammables or solutions with low flash points should never be used. The energy released by cavitation is converted to heat and kinetic energy, generating high temperature gradients in the solution, and can create hazardous conditions with flammable liquids. Acids, bleach and bleach by-products should generally be avoided, but may be used with indirect cleaning in a proper indirect cleaning container, such as a glass beaker, and appropriate care. Acid and bleach will damage stainless steel tanks, and/or create hazardous conditions.

22. Can I discard the insanitary water from every side of the container?

No. You cannot discard the water from the button side, otherwise, the water would enter into the inside of the machine.

23. Can I wash the container directly from the running tap after the cleaning?
No. After you discard the insanitary water,you can use a dry cloth to wipe the container.


24. Can the machine automatically stop?
Yes. It is 3 mins auto-OFF.


25.  Can I use the machine continuously?


26. Can I change the power plug?

No. Our machine works under 12 Voltage.Other power plugs would cause the damage.


27. Why can the machine not work after continuously clean?

After 2-3times continuous use,the machine cannot work ,but, the indicator is in flashing.Because the machine has an over-heating protecting,about 2mins later,the machine can automatically work again.