Ultrasonic Cleaners

An ultrasonic cleaner, also known as an ultrasonic bath, ultrasonic cleaning tank, or sonic cleaner, is a cleaning device that uses high-frequency sound waves (ultrasound) and a suitable cleaning solution to remove dirt, grease, oils, polishing compounds, carbon deposits, and other contaminants from a wide range of objects.

By utilising ultrasonic cavitation, these ultrasonic cleaning machines can effectively clean complex geometries, internal passages, threaded features, blind holes, and difficult-to-reach surfaces without aggressive mechanical scrubbing. Ultrasonic cleaners are widely used in medical, electronics, automotive, laboratory, manufacturing, engineering, and jewellery applications.

How Do Ultrasonic Cleaners Work?

Sonic cleaners operate using a process called acoustic cavitation. Ultrasonic transducers mounted to the cleaning tank generate high-frequency sound waves that pass through the cleaning liquid. These alternating high-pressure and low-pressure cycles create millions of microscopic cavitation bubbles within the solution.

As these bubbles form and collapse, they release localised energy that helps dislodge contaminants from immersed surfaces. Because cavitation occurs throughout the cleaning solution, ultrasonic cleaning can reach areas that are often difficult or impossible to clean manually.

The effectiveness of the cleaning process depends on several factors, including the ultrasonic frequency, power output, cleaning solution chemistry, solution temperature, cleaning duration, and the nature of the contaminant being removed. Optimising these parameters helps achieve efficient cleaning performance while ensuring compatibility with the items being cleaned.

What Can Ultrasonic Cleaners Clean?

An ultrasonic cleaning unit is ideal for removing oil, grease, carbon deposits, and other contaminants from a wide variety of items. Whether you are using a high power ultrasonic cleaner for industrial use or a portable ultrasonic cleaner for smaller tasks, these machines provide thorough cleaning without damaging delicate surfaces.

Here are some of the most commonly cleaned items using an ultrasonic bath cleaner:

• Precision tools such as taps, dies, and milling cutters
• Engine blocks and automotive parts
• Jewellery made of gold, silver, and platinum
• Medical instruments and dental devices (note: ultrasonic cleaning does not sterilise)
• Dentures and orthodontic appliances
• Golf clubs and sports equipment
• Ceramics and glassware
• Paint spray guns and airbrushes
• Electronic and mechanical parts
• Plastics and delicate materials

Benefits of Using Ultrasonic Cleaners

Here are some benefits to using ultrasonic cleaners and ultrasonic baths over other cleaning methods:

• Increased Cleaning Effectiveness: The cavitation process of an ultrasonic cleaning machine is able to reach crevices that manual scrubbing or soaking can miss, ensuring more complete removal of contaminants.
• Reduced Labour Costs: By automating the cleaning process, ultrasonic cleaners significantly decrease the time and manpower required for cleaning tasks, leading to cost savings.
• Gentle on Delicate Items: Unlike abrasive cleaning methods, ultrasonic cleaning is non-contact and gentle, minimising the risk of damage to sensitive parts and materials.
• Faster Cleaning Cycles: Ultrasonic cleaners greatly reduce the time needed to achieve a high level of cleanliness compared to traditional soaking or scrubbing methods.
• Environmentally Friendly: You can opt to use water-based solutions instead of harsh chemicals with an ultrasonic cleaner, making it more environmentally friendly.
• Versatile Applications: Ultrasonic cleaners can be used to clean a wide array of materials and items, from intricate jewellery and medical instruments to industrial parts and electronic components.

Key Features of Ultrasonic Cleaners

An ultrasonic cleaner comes with a range of features designed to enhance cleaning performance and convenience:

• Degas Mode: Rapidly removes dissolved gases and air bubbles from the ultrasonic cleaning fluid, improving cleaning efficiency.
• Delicate Mode: Provides a gentler clean for sensitive components and delicate materials.
• Full-Power Mode: Delivers a high-powered clean for stubborn contaminants and heavy-duty applications.
• Temperature and Timing Controls: Allow users to set precise cleaning cycles and temperatures for consistent results.
• Stainless Steel Construction: Tanks, lids, and housings made from stainless steel ensure durability, corrosion resistance, and easy maintenance.
• Cleaning Solutions: Ultrasonic cleaning machines perform best when used with a compatible ultrasonic cleaner solution.
• Optional Baskets or Holders: Help suspend delicate items, such as jewellery, for optimal positioning during cleaning.

Choosing the Right Ultrasonic Cleaner for Your Needs

Selecting the right ultrasonic cleaner depends on several important factors that determine cleaning effectiveness and efficiency:

• Tank Size and Capacity: Match the ultrasonic cleaner’s tank size to the items you will be cleaning. A large ultrasonic cleaner is ideal for bigger or multiple items, while a portable ultrasonic cleaner works well for smaller, space-limited setups.
• Frequency Range: Lower frequencies, typically around 20–40 kHz, generally provide more aggressive cleaning action. Higher frequencies are often selected for delicate items and precision cleaning applications.
• Power Output: A high-power ultrasonic cleaner generates stronger cavitation, essential for tackling heavy contaminants quickly and thoroughly.
• Temperature Control: An ultrasonic cleaning machine with built-in heating enhances cleaning performance, especially for grease and oil removal.
• Model Type: Decide between bench-top ultrasonic cleaners for everyday tasks or industrial ultrasonic cleaners for high-volume, continuous operations.
• Cleaning Fluid Compatibility: Ensure your ultrasonic cleaning unit is compatible with a variety of cleaning solutions to suit different materials.
• Ease of Use: Look for user-friendly features such as digital controls, timers, degas functions, and pre-set cleaning modes.
• Build Quality: Choose units with stainless steel tanks and durable housing to ensure longevity and corrosion resistance.

Industrial Application of Ultrasound Cleaners

Ultrasonic cleaners are widely used across various industries due to their precision, efficiency, and non-destructive cleaning capabilities. Below are some of the most common industrial applications of these powerful cleaning machines:

• Medical and Healthcare: Hospitals and clinics use ultrasonic cleaning units to thoroughly clean surgical instruments, dental tools, and medical equipment. While ultrasonic cleaning removes contaminants, it does not sterilise, so items are typically sterilised after cleaning.
• Automotive: In the automotive sector, industrial ultrasonic cleaners are used to remove oil, carbon, and grease from engine parts, carburettors, and fuel injectors, improving performance and longevity.
• Electronics and Semiconductor: Sonic cleaning machines gently clean PCBs, circuit boards, and other delicate electronic components without damaging intricate parts or removing protective coatings.
• Jewellery and Precious Metals: Restore the sparkle of gold, silver, platinum, and gemstones by removing dirt, polishing compounds, and skin oils from intricate settings and fine details.
• Manufacturing and Industrial Machinery: Factories rely on high-power ultrasonic cleaners for degreasing and maintenance of metal parts, moulds, and tools, ensuring operational efficiency and extending equipment life.
• Laboratories and Research: Labs use ultrasonic cleaners for cleaning beakers, tubes, and delicate glassware, especially where residue-free cleanliness is essential for accuracy in research and testing.
• Optics and Eyewear: From microscopes to eyeglasses, ultrasonic cleaning machines effectively clean lenses and frames without scratching or leaving residue, maintaining optical clarity and hygiene.

Frequently Asked Questions About Ultrasonic Cleaners (FAQs)

How much does an ultrasonic cleaner cost in Malaysia?

Ultrasonic cleaner price in Malaysia varies widely based on tank capacity, ultrasonic power output, and whether the unit is a compact benchtop model or a large industrial cleaning tank. At RS Malaysia, prices range from approximately MYR489 for a compact 600ml portable ultrasonic cleaner through to MYR77,719 for a high-power 288-litre industrial ultrasonic cleaning tank, reflecting the significant differences in scale, power, and capability across the range.

Can I leave items in an ultrasonic cleaner too long?

Yes, over-cleaning is possible. Prolonged exposure to cavitation can cause surface erosion, pitting, or discolouration on soft metals, plated surfaces, and delicate materials. Most applications require between 2 and 20 minutes depending on the contaminant and material; always refer to the manufacturer's guidance and start with shorter cycles when cleaning unfamiliar materials.

What cleaning solution should I use in an ultrasonic cleaner?

The appropriate solution depends on the material being cleaned and the type of contaminant. Water-based alkaline solutions are suitable for general degreasing of metals, whilst specialist formulations are available for electronics, jewellery, medical instruments, and plastics. Plain tap water can be used for light cleaning tasks, but a purpose-formulated ultrasonic cleaning fluid significantly improves cavitation efficiency and cleaning results.

Shop Ultrasonic Cleaners at RS Malaysia

RS is a trusted supplier of ultrasonic cleaners in Malaysia, offering a wide range of reliable ultrasonic cleaning machines for both professional and industrial use. Whether you are looking for a portable ultrasonic cleaner, a large ultrasonic cleaner, or a high-power one, we provide options to suit every workspace and requirement.

Shop top-quality models from manufacturers like RS PRO, and explore our broader selection of lab equipment such as hot plate stirrers, microscopes, ultrasonic cleaner baskets, and more to support your operations.

All our products are competitively priced to offer great value without compromising performance. Our ultrasonic cleaner price varies across the range depending on tank capacity, power rating, and features, with pricing shown clearly per product so you can compare options and find the right fit for your budget.

For information on delivery times and shipping details, please refer to our Delivery Page.