Ultrasonic Systems for Precise Cleaning Applications
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Why a Mini Ultrasonic Generator System May Be the Best Choice for Your Device Cleaning Requirements

July 28, 2016

Why a Mini Ultrasonic Generator System May Be the Best Choice for Your Device Cleaning RequirementsUltrasonic cleaning is an effective alternative to cleaning parts and components using chemicals, agitation and scrubbing. The bubbles produced by an ultrasonic generator can clean stains and contaminants with robust cleaning action at low ultrasonic frequencies while high frequency cleaning can remove microscopic particles with gentle cleaning action. Ultrasonic cleaning is fast, cost effective and environmentally friendly, delivering complete cleaning solutions for all shapes and materials.

Kaijo’s Quava Mini ultrasonic generator can clean small parts at a wide range of frequencies. The generator and its associated tank/transducer combination are versatile tabletop units designed for all-purpose ultrasonic cleaning. Manufacturing and laboratory facilities that have either specific cleaning requirements or often need to clean a variety of manufactured components may find that the Quava Mini system represents the ideal solution for their needs.

Quava Mini Characteristics

Kaijo’s Quava Mini ultrasonic generator is available in two models. The low frequency model delivers either 26/78/130 kHz or 38/100/160 kHz at up to 50 W. The high frequency model produces 200/430/950 kHz or 1.6 MHz at up to 100 W. Both models are powered by 100 to 240 V AC and weigh 4.6 kg while fitting easily on a desk.

The transducers to make up a turnkey ultrasonic cleaning system are available in multiple frequencies at the low end and single high frequencies. The low frequency models work with either 26/78/130 kHz or 38/100/160 kHz while the high frequency models are available for either 200 kHz, 430 kHz, 950 kHz or 1.6 MHz. For a complete range of low or high frequencies an installation needs either the low range generator with the two multi-frequency transducers or the high range generator with the four single-frequency transducers.

The cleaning tank units that form a single assembly with the transducers complete the turnkey installation. They are large enough to clean parts about 140 mm long and are available in PVC or quartz glass. The same tank model is used for all frequencies and transducers.

Quava Mini Features

The Quava Mini turn-key ultrasonic cleaning system is designed to provide an easy-to-use low-cost solution to the cleaning of small manufactured parts. Installation and assembly are trivial, consisting of placing the ultrasonic generator on a table or desk, mounting the tank unit on the transducer with the appropriate frequency and plugging in the units. Once the tank is filled with the cleaning solution and the item to be cleaned is placed in the tank, ultrasonic cleaning can often be completed in a few minutes.

The Quava Mini ultrasonic generator has an LED display for precise control of the power delivered to the transducer. Power can be varied in steps of 0.1 W for precise control of cleaning power. For the low frequency model, different cleaning frequencies can be selected without changing the system configuration while for the high frequency model changing the transducer to match the selected frequency is easy and fast. Low frequencies create larger bubbles and a more robust cleaning action while the high frequency bubbles are smaller and less energetic. Increasing the power delivered to the transducer results in more bubbles at a given frequency.

When evaluating different cleaning methods for small parts, the low cost of both acquisition and operation together with its high cleaning performance and flexibility makes the Kaijo Mini ultrasonic cleaning system an effective choice. Call 408 675-5575 or email [email protected] for a free quote or consultation on using Kaijo’s mini ultrasonic system for your application.

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What Ultrasonic Transducers Do in an Ultrasonic Cleaning System

July 19, 2016

What Ultrasonic Transducers Do in an Ultrasonic Cleaning SystemUltrasonic cleaning systems are made up of ultrasonic transducers, generators, and cleaning tanks. The transducers are submerged in the cleaning solution and take the electric signal from the generator to produce the cleaning action. As the electric ultrasonic frequency signal rises and falls, the transducer vibrates and generates compression waves in the cleaning solution. These compression waves produce the cavitation bubbles responsible for ultrasonic cleaning.

The immersion of the ultrasonic transducers in the cleaning solution can be carried out in two ways. The immersible transducers are self-contained, sealed units connected to the ultrasonic generators with a cable. They are placed in the tank containing the cleaning solution together with the object to be cleaned.

The bolt-on or mounted transducers are mounted at the bottom or on the sides of the cleaning tank. Systems with bolt-on or mounted transducers produce consistent cleaning results but changing a bolt-on or mounted transducer for one of with a different frequency takes more time than changing an immersible transducer.

Transducer Characteristics

Ultrasonic transducers must be resistant to erosion from the effects of the cavitation bubbles and must be able to operate submerged in cleaning solutions at high temperatures. Kaijo ultrasonic transducers are hermetically sealed in 316L stainless steel housing with a thick metal plate to transmit the sound waves to the cleaning liquid and avoid damage from cavitation over extended periods. The transducers can be used at temperatures of up to 100 degrees Centigrade for most transducers and up to 80 degrees Centigrade for the transducers operating at 1 MHz.

Immersible Transducers

Immersible ultrasonic transducers are available at ratings of up to 1200 W and at frequencies of 26kHz, 38kHz, 78kHz, 100kHz, 130kHz and 160kHz. They can be connected to any Kaijo ultrasonic generator and can be placed in existing tanks. Their ease of use and flexibility makes them ideal for facilities that have a wide variety of ultrasonic cleaning requirements.

Operators can place the object to be cleaned in a tank with an appropriate cleaning solution and insert one or several transducers with the desired frequency. The transducers can be placed in the tank either horizontally or vertically and cleaning can be varied to ensure optimum performance for a particular object and for the contamination to be removed or the type of cleaning required.

Bolt-on or Mounted Transducers

Bolt-on or Mounted ultrasonic transducers are available at ratings of up to 1200 W and at frequencies of 26kHz, 38kHz, 78kHz, 100kHz, 130kHz, 160kHz, 200kHz, 430kHz, 750kHz, and 950kHz. They are mounted at the bottom or on the sides of cleaning tanks or can be bolted onto the desired location on existing tanks. Kaijo ultrasonic transducers are compatible with the Kaijo Quava, Phenix Legend and Phenix III generators and they are available installed on Kaijo ultrasonic baths and tanks.

Bolt-on or mounted transducers are especially suited for manufacturing and laboratory facilities that have clearly defined ultrasonic cleaning needs. Kaijo can recommend a configuration that delivers top cleaning performance for a particular application. Frequency, tank size and number of transducers can be optimized for the specific cleaning requirements and the fixed transducer installation can deliver consistent cleaning results.

Whether the immersible or the fixed bolt-on or mounted transducers are the best solution for a particular application, Kaijo can propose a custom solution that delivers the optimum level cleaning without the degradation over time that can occur with other piezoelectric systems. Call 408 675-5575 or email [email protected] for a free consultation or quote on using an ultrasonic cleaning system for your application.

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