Monmouth's comprehensive range of ultrasonic baths offer unrivalled quality and versatility. With over 60 baths available in the range and hundreds of accompanying accessories we will have a solution for your ultrasonic requirements.
How does ultrasound work
Vibrations at frequencies exceeding 18 kHz (18,000 vibrations per second) are called ultrasound. As a result of these vibrations millions of smallest vacuum bubbles are formed in liquids. They implode during the high pressure phase and create highly effective pressure waves. This process is called cavitation and causes the removal of dirt particles from the objects to be cleaned. Lower frequencies of approx. 20 kHz which are applicable in cell disruption, produce bubbles with larger diameters and stronger pressure waves than higher frequencies of approx. 35 kHz which are used for intense but gentle cleaning. The HF generator converts the mains frequency into the corresponding frequency of the ultrasonic bath. This frequency is transformed into mechanical vibrations by transducers underneath the tank.
Ultrasound is transmitted to the liquid in the bath. All Bandelin ultrasonic baths use SweepTec® a special frequency modulation around on optimally fixed operating point. A very homogeneous and even ultrasonic field is achieved.
Advantages of ultrasonic cleaning
Ultrasonic cavitation removes dirt rapidly from items, thoroughly and deep from pores, even from difficult to reach places such as cavities or holes. Ultra sound cleans only in a few minutes and exceeds in its effi ciency other cleaning methods. Ultrasonic cleaning is also gentle because even slight damage like scratches are eliminated.
Advantages in process engineering and sonochemistry
Cavitation not only can be used for various purposes, but a very fi ne emulsion of oil and water can be produced by ultrasonic application. Compared to other manufacturing processes this emulsion is more stable. For sonochemical processes in an ultrasonic bath, the reaction vessel should have a thin bottom. Thus, the ultrasonic energy is radiated directly and effectively into the reaction vessel.
How to select the proper unit
SONOREX ultrasonic baths work with the intense cleaning frequency of 35 kHz. Size and number of objects to be cleaned determine size of the ultrasonic bath. When selecting the unit, dimensions of the accessories, e. g. baskets have to be considered. To avoid overloading, it is recommended to choose a slightly larger unit. This also allows additional applications at a later stage.
Should an ultrasonic unit have a heating
Warm cleaning solutions reduce the cleaning time; dirt is removed faster. Units with heaters are the preferred choice for cleaning processes in laboratories. Disinfectant solutions must not be warmed-up because protein coagulation starts at a temperature of 40 °C (104° F) and this poses an obstacle for some cleaning and all disinfection processes. Therefore, units without heaters are recommended for these applications.
What kind of accessories should be used
Objects to be cleaned and reaction vessels must not be placed on the tank bottom. Insert baskets avoid scratching either the parts to be cleaned or the tank bottom. Beakers are placed into positioning lids and are used for cleaning of small objects or when working with aggressive solutions.
Which cleaning agents are appropriate
TICKOPUR and STAMMOPUR cleaning and disinfectant agents have been especially developed for application in SONOREX ultrasonic baths. Water without any cleaning agent does not clean. Household detergents as well as DI-water should never be used. It is necessary to use plastic insert tubs, when working with acids or removing acid residues. Flammable liquids must not be used directly in the ultrasonic tank. CLICK HERE FOR TICKOPUR ULTRASONIC CLEANING AGENTS