Ultrasonic cleaning is increasingly being used across a broad spectrum of industries thanks to the advent of biodegradable cleaning solutions and the development of vastly improved ultrasonic cleaning equipment. No other cleaning method is as fast and as efficient as ultrasonic cavitation for removing any and all contaminants from parts or assemblies, regardless of the complexity of configuration.
Ultrasonic cleaners range from small tabletop units for cleaning jewelry and eyewear to custom multi-step automated assembly lines such as used for cleaning mobile thin film transistor (TFT) liquid crystal displays for mass production.
At Tovatech we are delighted to help customers and prospects decide on which ultrasonic cleaner and what ultrasonic cleaning solution best matches their ultrasonic cleaning requirements. With the wide variety of sizes and features available today there is sure to be an ultrasonic cleaner and process that suits users’ requirements to a “T.”
To help make the selection, … Read the rest
Grinding dust, metal shavings, polishes, lubricants, powder residues and coolant residues are part and parcel to the operation of metalworking and machine shops, but must be removed before parts pass to further processing steps such as the coating line or for electroplating. By putting an ultrasonic cleaner to work, machine shop owners no longer have to spend hours soaking then scrubbing these parts using potentially dangerous solvents.
An ultrasonic cleaner tank containing a biodegradable ultrasonic cleaning solution along with a rust inhibitor is the fastest and safest method to thoroughly clean stamped, cast and machined parts because, unlike manual methods, the cleaning action penetrates any surface that can be reached by the solution.… Read the rest
Equipment used in law enforcement applications must be maintained for the health and safety of officers as well as suspects taken into custody. Because of its speed and thoroughness an ultrasonic cleaner is a valuable equipment maintenance tool for police stations and highway patrol barracks.
One piece of equipment used by virtually all law enforcement officers is a set of handcuffs. Handcuffs come into direct contact with the skin of suspects and can pick up oils, dirt and hair that might harbor infectious diseases. Handcuff construction is such that these contaminants can lodge in cracks and crevices, which means that a simple washing is unsatisfactory. Cuffs should be given a session in an ultrasonic cleaner before officers put them back into their carrying cases.
Newly manufactured printed circuit boards (PCBs) must be cleaned to remove excess solder, rosins and other contaminants before placed into use. An ultrasonic cleaner is by far the fastest and most efficient method to safely clean these components when proper procedures are applied.
With trichloroethylene no longer available for cleaning PCBs, a substantial amount of posted information relates to cleaning, soaking and scrubbing using high purity alcohol, flux removal sprays and special biodegradable solvents. These manual processes are time consuming, could damage delicate components, can be environmentally unfriendly, and there is no guarantee that contaminants have been completely removed from complex PCB configurations. An ultrasonic cleaner such as the Elmasonic S series available from Tovatech is the practical answer to producing thoroughly clean high performance PCBs.
Owners of small engine repair shops more easily accommodate seasonal peaks in demand when they use an ultrasonic cleaner instead of manually scrubbing carburetors, engine blocks and other engine components in harmful solvents that can also present a disposal problem.
For example, fuel in the carburetors of lawnmower engines, outboard marine engines and snowmobile engines that sit idle during portions of the year may thicken and gum up small passages and orifices virtually impossible to reach by manual cleaning. In contrast, the cavitation action generated by an ultrasonic cleaner reaches any and all surfaces of these delicate instruments, safely restoring them to a like-new condition. Carbon, varnish and grease build-up on valves, cylinder heads and other engine parts are likewise safely removed even from aluminum surfaces thanks to the power of ultrasonic cleaning using biodegradable ultrasonic cleaning solutions.
Repair shop owners readying customers’ bicycles for spring and summer tours will save time by using an ultrasonic cleaner to remove grease and caked on dirt. Gears, sprockets, bearings, chains, cables – any and all parts can be restored to a like-new appearance thanks to the power of ultrasonic energy. Only a few minutes in an ultrasonic bath replaces tiresome and frequently dangerous soaking and hand scrubbing in solvent tanks, a timely process that more often than not yields unsatisfactory results.… Read the rest
As many researchers have found there can be some real challenges in dissolving or mixing samples in the lab. Technicians in healthcare facilities know that cleaning medical instruments prior to disinfecting and sterilizing also requires care to be certain that blood and tissue are completely removed, even from small cracks and crevices.
Ultrasonic cavitation can solve both challenges, and a new ultrasonic cleaner just released by Elma does it in a big way in a small package. Delivering 300 watts average ultrasonic power and available from Tovatech the microprocessor-controlled Elma S150 ultrasonic cleaner operates at 37 kHz and has a capacity of 3.75 gallons of solution in a 20” x 12” x 4” deep tank. It is the shallow depth that accounts for the high ultrasonic power per unit volume.… Read the rest
ELMA designed a production line ultrasonic cleaning system to remove residual plastic from molds used to make plastic eyeglass lenses, cleaning up to 1,000 molds per hour for reuse. The ultrasonic cleaning process begins after the lens blanks are removed from the polymerization oven, separated from the molds and sent for further processing.
The 15-step custom enclosed ultrasonic cleaning equipment system is configured as an automated production line consisting of 8 tanks plus a dryer. All ultrasonic cleaning is accomplished at 40 kHz. The first steps are in tank 1 where N-Methylpyrrolidone (NMP) ultrasonic cleaning solvent kept between 60 – 70˚C carries out the initial cleaning process.… Read the rest
Air and other gases contained in a freshly filled ultrasonic cleaning bath interfere with the cleaning performance of the ultrasonic cleaner. Evidence of these gases can be seen as bubbles that form on the inside of a standing glass of warm water. Ultrasonic cleaning is accomplished by the energy released from the violent collapse of tiny vacuum-filled bubbles. Air bubbles and dissolved air in the cleaning liquid absorb ultrasonic energy and inhibit the implosion of these cavitation bubbles, significantly reducing the cleaning effect.
Air can also be introduced as bubbles clinging to objects immersed in the ultrasonic bath.
Entrapped air can be removed two ways. Simply by running the ultrasonic cleaner a “degassing” occurs as heat and cavitation drive the air to the surface in the form of bubbles. If products to be cleaned are in the ultrasonic tank during this operation, the cleaning process is lengthened because a portion … Read the rest
Infection control is more crucial than ever as healthcare practitioners face increasing caseloads of diseases and viruses as well as treating victims of violence, accidents, natural and human-caused disasters. Proper cleaning of instruments used in treatments has two benefits, most important of which is to help ensure infections are not accidently transmitted to other patients. Moreover, reusing properly cleaned and disinfected instruments can help lower costs for treatment facilities.
In a three-step process the World Health Organization has established practical guidelines for infection control in healthcare facilities: cleaning, disinfection and sterilization. An ultrasonic cleaner is faster, safer, and more thorough than scrubbing, soaking, and even using steam. But as the WHO cautions, it is not a substitute for disinfecting and sterilization. Instead, it can be an important step in cleaning instruments after gross contamination is removed by manual or automatic scrubbing.