Ultrasonic cleaning machines utilize high-frequency ultrasonic waves to create a "cavitation effect" in liquids. These machines are highly efficient, deep-cleaning devices that can reach tiny crevices and complex surfaces that are difficult for traditional tools like brushes to penetrate, achieving a thorough, no-dead-angle cleaning. They are known as the "all-rounder in the cleaning world."
Coreal Machinery has compiled some information for your reference.
I. Core Working Principle: Cavitation Effect
1. Ultrasonic Generation: The transducer at the bottom of the cleaning machine converts high-frequency electrical signals (20kHz to 80kHz or higher) into mechanical vibrations of the same frequency.
2. Pressure Wave Transmission: These vibrations create countless tiny, invisible high- and low-pressure regions in the cleaning fluid, such as water or solvent.
3. Cavitation Bubble Formation and Collapse: The low-pressure region creates tiny vacuum bubbles (cavitation bubbles), which are then rapidly crushed and ruptured by the subsequent high-pressure region.
4. Shockwave Cleaning: The instantaneous collapse of the bubbles generates powerful shockwaves reaching a local pressure of thousands of atmospheres, which continuously impact the surface of the object, quickly removing stubborn dirt, oil stains, and microorganisms.
II. Key Considerations for Choosing an Ultrasonic Cleaning Machine
1. Capacity and Size: Select the inner tank size based on the size of the items you clean most frequently, ensuring that the items are fully immersed in the cleaning fluid.
2. Ultrasonic Frequency:
Low Frequency (20kHz-30kHz): High energy and powerful cleaning power, suitable for cleaning heavily oiled and hard industrial parts. However, be aware that this may damage delicate surfaces.
Medium-High Frequency (40kHz-80kHz and above): Dense and fine bubbles provide gentle and precise cleaning, suitable for delicate items such as jewelry, electronics, and optical lenses. Models with multiple frequency options offer greater adaptability.
3. Power and Power Density: Power affects cleaning power. A more scientific indicator is power density (watts per liter). We recommend choosing a machine with a minimum of 0.3W/ml.
4. Material and Workmanship: The inner tank is preferably made of 304 or 316 stainless steel for corrosion resistance and long life. Check the seals and transducer welding process to ensure reliable quality.
5. Additional Features: A heating function (40-60°C) improves cleaning efficiency, especially for grease-based stains. A timer function prevents over-cleaning and manual oversight. A noise-reducing cover reduces noise and prevents evaporation. A drain valve facilitates cleaning.
III. Usage Precautions
1. Select the Right Cleaning Solution: Avoid using only water. Depending on the type of stain, choose a specialized ultrasonic cleaner (water-based/solvent-based), alcohol, or diluted dishwashing liquid to significantly improve cleaning results.
2. Properly Place Items: Ensure items are completely immersed in the cleaning solution. Use the included basket to hold or suspend items. Avoid direct contact with the tank bottom to prevent obstruction of ultrasonic transmission or damage. Consult a qualified professional before handling delicate items.
3. Regular Maintenance: Replace cloudy cleaning solution promptly and clean the inner tank regularly to prevent dirt accumulation and corrosion.
Coreal Machinery is committed to providing you with quality equipment and industry solutions.