|
Ultrasonic Cleaners for the Manufacturing Industry Zenith Mfg & Chem Corp. 85 Oak St., Norwood, NJ 07648-0412 800-432-SONIC (7664) Fax: 201-768-6999
|
|
|
Patented CROSSFIRE Multiple Frequency Ultrasonic Systems WHY SETTLE FOR 1 ULTRASONIC FREQUENCY? Zenith Ultrasonics is the original inventor, and dual patent holder, of the first multiple frequency ultrasonic cleaner that can be used for both high-technology parts cleaning, AND industrial cleaning applications. This revolutionary ultrasonic cleaner, known as CROSSFIRE, includes simultaneously operating transducers and generators of 2 or more frequencies to provide the ultrasonic cleaning characteristics of all included frequencies, a drastic improvement over any single-frequency system (US PATENT 5,865,199 and 6,019,852). Each frequency of ultrasonics provides a cleaning action with certain characteristics. Low frequency ultrasonic cleaners produce cleaning action which is more powerful, but less evenly distributed in the cleaning tank, leading to "hot spots" of activity which may lead to inconsistent cleaning results, and even damage to highly polished aluminum parts. High frequencies create cleaning action which is more evenly distributed, and has improved penetration capabilities to clean inside of blind holes and other detailed part areas, but less cleaning power. By combining high frequencies, and low frequencies together, the characteristics of both frequencies are included. Low frequency power combined with high frequency penetration and even distribution of energy. The CROSSFIRE ultrasonic cleaner is the most technologically advanced ultrasonic cleaning system available, and can only be purchased at Zenith Ultrasonics. Most ultrasonic cleaning applications require the power, and penetration, that CROSSFIRE has to offer. Your cleaning application may have contaminants which require raw power, such as burned carbons, buffing compounds, rust, or others which are the domain of low frequency ultrasonic cleaners. Your parts may also have detailed areas, blind holes, threaded areas, and similar design patterns which require high frequency ultrasonics. The CROSSFIRE Multiple Frequency Ultrasonic system includes the power, and penetration, required to address these applications. All frequencies operate SIMULTANEOUSLY, not intermittently as with some copy-cat systems. And, transducers are NEVER forced to operate outside of their natural resonance frequencies, resulting in the most efficient multi-frequency system currently available. For high-technology applications, your concern is more than likely with particles of varying sizes, while simultaneously preventing damage to critical components. Since ultrasonic cleaners of differing frequencies have tendencies to remove particles of differing sizes, CROSSFIRE ensures that the range of particles being addressed by the system is maximized. For industrial customers requiring power, and penetration, CROSSFIRE is the only system available that can provide both. Perhaps the best part about a CROSSFIRE system is that YOU CAN EASILY PROVE ITS MANY ADVANTAGES OVER COMPETITIVE SYSTEMS WITH SIMPLE ALUMINUM FOIL. By submerging small strips of aluminum foil into an ultrasonic bath and holding the foil VERY still, holes will be created in the foil at ultrasonic hot spot locations, clearly indicating how evenly distributed the ultrasonic power, and powerful the scrubbing action at that particular tank location. By visually examining the foil, one can easily see the shortcomings of single frequency ultrasonic systems. CROSSFIRE will produce a more evenly distributed scrubbing pattern with NO DEAD SPOTS. All part surfaces will be addressed ultrasonically, with no surface left un-touched, yielding more consistent and faster parts cleaning results. WHAT SEPARATES CROSSFIRE FROM OTHER MULTIPLE FREQUENCY ULTRASONIC SYSTEMS? Zenith's patented CROSSFIRE system was the first multiple frequency ultrasonic system ever produced in mass scale for industrial and precision cleaning purposes. Other manufacturers of ultrasonic equipment lead one to believe that these systems have been available for decades. If this were so, Zenith engineers would not have been able to patent the development. Soon after the development of CROSSFIRE, competitive manufacturers began to develop multiple frequency systems that could circumvent the patented CROSSFIRE design, realizing the enormous advantages that Zenith had with the development of CROSSFIRE. One of the largest differences between CROSSFIRE and other "multiple frequency" ultrasonic systems is the fact that competitive multiple frequency ultrasonic systems are not really multiple frequency at all. While the CROSSFIRE system activates all frequencies simultaneously, competitive systems activate each frequency intermittently, for short durations of time. NO COMPETITIVE MULTIPLE FREQUENCY SYSTEM WILL SIMULTANEOUSLY OPERATE MORE THAN 1 FREQUENCY. This is a right which is protected under the CROSSFIRE patents. Therefore, parts which are cleaned in these systems are exposed to each frequency for short periods of time. For example, if a competitive multiple frequency ultrasonic system includes 2 frequencies, and the cleaning cycle time is 10 minutes long, each frequency will be activated for only 5 minutes. With CROSSFIRE, parts are exposed for 10 minutes at BOTH frequencies, a considerable difference which leads to faster and more effective cleaning results. CROSSFIRE will also produce significantly more powerful ultrasonic cleaning action at any frequency as a result of powering each transducer at its NATURAL RESONANCE FREQUENCY. Each transducer has a Natural Resonance Frequency at which it is most powerful, and most electrically efficient, a property shared by all objects in nature. Have you ever had a rattle in your automobile that ONLY occurred at a certain speed? The reason you are hearing the rattle is that, at that particular speed, a vibration is being created which is EXACTLY the natural resonance frequency of that rattling part. The same properties apply to an ultrasonic transducer. Transducers are specifically manufactured to operate at a very narrow frequency range. Outside of this natural frequency, the "rattle" is not produced, and ultrasonic energy is drastically reduced as a result. All transducers used in the CROSSFIRE design operate at over 95% electrical efficiency. A "universal transducer", which can operate at many frequencies with high efficiency and power, does not exist. The frequency of the transducer is determined by its size and mass. Since the size and mass of the transducer can not be changed, the most efficient operating frequency can also not be changed. The principle is similar to a musician's instrument tuning fork. Change the size of a Tuning Fork and the frequency of sound it creates will also change. Transducers are identical in concept. When activated, they emit ultrasonic energy most efficiently at 1 specific frequency. IF THE FREQUENCY BEING SUPPLIED TO THE TRANSDUCER IS OFF BY EVEN 4kHz, EFFICIENCY AND POWER DROP TO 20%, OR LESS. This is the reason why the "sweep frequency circuits" employed by virtually everyone sweeps a frequency band of only 3-4kHz. If a larger sweep was added, power at the outside frequencies would have virtually no cleaning power. To overcome this extreme loss of power, you will find that competitive "multiple frequency systems" have generators that are larger in size and power to make up for the loss of electrical efficiency. This does not mean they are more powerful, the power is only added to make up for efficiency loss. However, even when pushing the transducers and generators to their extremes, as they are in these cases, the power produced can not match the power of a transducer operating at its Natural Operating Frequency. Perhaps the BEST part about CROSSFIRE is, WE CAN PROVE IT WORKS BETTER USING A SIMPLE TEST!!! The oldest method for testing ultrasonic power is the use of over-the-counter aluminum foil used to wrap sandwiches. When a strip of foil is placed in an ultrasonic bath, the ultrasonic energy will dent, and/or penetrate the foil, producing visible holes, and scars which can be used to determine how powerful, and how evenly distributed the cleaning action. The CROSSFIRE system will outperform any competitive single or multiple frequency system easily, penetrating the foil faster, producing larger, and more evenly distributed holes. Keep this question in mind: If one frequency could do it all, why do all manufacturers of ultrasonic cleaning systems offer a choice of several frequencies?? If someone tries to convince you that a single frequency system can do what CROSSFIRE can, keep the above question in mind. When you CLOSELY compare the CROSSFIRE system to other so-called multiple frequency systems or single frequency systems, the superiority becomes clear. CROSSFIRE is the world's only true multiple frequency ultrasonic system in the world, period. Nothing else even comes close.
|
|
Send mail to
webmaster@zenith-ultrasonics.com with
questions or comments about this web site.
|