Ultrasonic Transducer

A: The function of an ultrasonic transducer is to convert the electrical energy into high-frequency vibrations. When applied to ultrasonic cleaning equipment, we mount transducers firmly onto stainless steel tanks and panels. Once connected to an ultrasonic power supply, they produce tiny cavitation bubbles inside cleaning liquid. These bubbles collapse instantly on workpiece surfaces, effectively stripping away dirt and impurities gently, while never scratching or harming delicate parts.
Our transducers from Soner Tech are widely applied in industrial ultrasonic cleaning machines and beauty & medical ultrasonic instruments, as well as ultrasonic non-destructive testing devices. Having specialized in this field for more than 20 years, we control the full production chain from raw piezoelectric ceramic chips right through to finished transducer assembly. We can provide regular standard transducers and also fully customized OEM designs to fit all your unique working conditions and project needs.
What is the difference between an ultrasonic sensor and an ultrasonic transducer?
Both ultrasonic transducers and sensors are different.
Ultrasonic transducers are mainly used to convert the electricity to mechanical vibrations and transmit strong waves into liquids, air or solid materials.
For ultrasonic cleaning machines, it is the transducer that produces powerful cavitation force to clean workpieces thoroughly.
By contrast, ultrasonic sensors work as both transmitter and receiver. They send out ultrasonic pulses, wait for echoes reflected back from objects, and calculate distance, liquid level, or object detection accordingly. They are widely used in car parking radars, liquid level monitors, and flow meters.
For industrial ultrasonic cleaning equipment and beauty instruments, the core component you need is definitely ultrasonic transducers.
We at Soner Tech focus on manufacturing premium piezoelectric transducers for cleaning tanks, beauty devices, and NDT testing probes.
If your project requires distance detection or measuring functions, you will need independent ultrasonic sensor modules instead.

A: Both ultrasonic transducers and sensors are different.
Ultrasonic transducers are mainly used to convert the electricity to mechanical vibrations and transmit strong waves into liquids, air or solid materials.
For ultrasonic cleaning machines, it is the transducer that produces powerful cavitation force to clean workpieces thoroughly.
By contrast, ultrasonic sensors work as both transmitter and receiver. They send out ultrasonic pulses, wait for echoes reflected back from objects, and calculate distance, liquid level, or object detection accordingly. They are widely used in car parking radars, liquid level monitors, and flow meters.
For industrial ultrasonic cleaning equipment and beauty instruments, the core component you need is definitely ultrasonic transducers.
We at Soner Tech focus on manufacturing premium piezoelectric transducers for cleaning tanks, beauty devices, and NDT testing probes.
If your project requires distance detection or measuring functions, you will need independent ultrasonic sensor modules instead.

A: Here's a practical guide:

Not sure which frequency is right for your application? Contact Soner Tech's technical team—we'll help you select the optimal frequency based on your part materials, contamination type, and tank geometry. We also offer dual-frequency transducers (e.g., 28/40 kHz) for applications that benefit from both deep power and fine cleaning.

A: Both 28 kHz and 40 kHz are the most common frequencies in industrial ultrasonic cleaning, but they perform differently:

Choose 28 kHz if: You are cleaning heavy industrial parts—engine blocks, gears, hydraulic components, or parts with heavy oil and rust.

Choose 40 kHz if: You need a versatile cleaner for machined parts, tools, medical instruments, or general manufacturing. 40 kHz is also better if your operation requires lower noise levels.

Choose dual-frequency (28/40 kHz) if: Your cleaning requirements vary by shift or product type, and you want the flexibility to switch.

A: The lifespan of an ultrasonic transducer depends on several factors: operating frequency, power level, duty cycle, quality of installation, and the environment it operates in. Here's a realistic overview:

Signs that a transducer needs replacement:

• Cleaning performance noticeably declines despite correct generator settings
• Transducer is unusually hot to the touch
• Visible cracks or physical damage to the piezo ceramic element
• Generator shows abnormal current draw or frequent overload trips

How to extend transducer lifespan:

• Ensure the generator frequency matches the transducer's rated frequency
• Avoid dry-running (operating without sufficient cleaning solution in the tank)
• Use appropriate cleaning solutions; avoid highly corrosive chemicals unless the transducer is rated for them
• Maintain proper water levels and tank temperature
• Install transducers using proper bonding techniques (epoxy or soldering per manufacturer specs)

Soner Tech's transducers are built with high-quality PZT piezoelectric ceramics and undergo rigorous quality testing before shipment. We also offer replacement transducer services for customers upgrading aging equipment.

A: In most cases, yes. Ultrasonic transducers operate on a straightforward principle: they vibrate at their natural resonant frequency when driven by an AC signal at that same frequency. As long as the generator's output frequency matches the transducer's rated frequency, they will work together.

Key compatibility factors to check:

Common compatibility scenarios:

• If you currently use a generator from Branson, Crest, SharperTek, or similar brands, most Soner Tech transducers can be configured to match
• For custom transducer orders, we can tune the resonant frequency to match your existing generator's output
• Dual-frequency or multi-frequency systems require a compatible multi-frequency generator

Tip: If you are unsure about compatibility, share your generator's technical specifications with us. Soner Tech's engineers will confirm the match and recommend any adjustments.

A: Sample Policy: We understand that verifying product quality before committing to a bulk order is essential. Soner Tech offers a sample program so you can test our ultrasonic transducers in your actual application:

• Sample fee: Charged per unit; fully refundable upon placement of a mass production order
• Sample lead time: 7 days from order confirmation
• Shipping: Worldwide shipping available (courier, sea freight, air freight)

Minimum Order Quantities (MOQ):

A: An ultrasonic beauty transducer is a specialized piezoelectric component designed for non-invasive aesthetic and skincare devices. It converts high-frequency electrical energy into mechanical ultrasonic waves that interact with human tissue for cosmetic purposes.

How it works in beauty applications:

• Cavitation effect (low-frequency mode, typically 40–100 kHz): Creates microscopic bubbles in coupling gels or skincare serums applied to the skin. When these bubbles collapse, they generate micro-vibrations that help emulsify and break down fat cells (body cavitation / body sculpting), improve blood circulation and lymphatic drainage, and enhance penetration of active skincare ingredients.
• Thermal and mechanical effect (high-frequency mode, 1–10 MHz): Penetrates different skin layers to stimulate collagen production and skin tightening, improve skin tone and reduce the appearance of pores, and support non-surgical facial lifting and contouring.

Common beauty devices using ultrasonic transducers:

• Ultrasonic facial machines (1 MHz / 3 MHz dual-frequency)
• Body cavitation slimming devices (40 kHz)
• Ultrasonic skin scrubbers / spatula cleansers (1 MHz)
• RF + ultrasound combination devices
• Ultrasonic eye treatment probes

At Soner Tech, we manufacture ultrasonic beauty transducers with premium piezoelectric ceramic elements rated for extended skin-contact use. All our beauty transducers are available in standard configurations or as fully customized OEM units for your specific device design.

A: Both 1 MHz and 3 MHz are widely used frequencies in professional and home-use ultrasonic beauty equipment. The key difference lies in penetration depth—which determines which skin layers and body areas each frequency is best suited for.

Dual-frequency devices (1 MHz + 3 MHz):

Many professional beauty systems combine both frequencies in a single device, allowing therapists to start treatments with 3 MHz on the face for gentle warming and skin preparation, then switch to 1 MHz for deeper work or move to body areas for contouring.

Choosing the right frequency:

Soner Tech offers both single-frequency and dual-frequency (1/3 MHz) beauty transducers, as well as custom frequencies for specialized aesthetic applications.

A: Yes, and this is one of our most requested OEM services. Soner Tech has extensive experience supplying custom ultrasonic beauty transducers to skincare device brands, aesthetic equipment manufacturers, and beauty tech startups worldwide.

Customization options for beauty transducers:

Popular beauty transducer customizations we supply:

• Curved body transducers for ergonomic body contouring handles
• Micro-sized facial probes (15–20 mm diameter) for eye contour and nasolabial fold treatment
• Multi-element array transducers for large-area simultaneous treatment
• Integrated temperature sensor probes for treatments requiring skin temperature monitoring
• Custom-frequency 7 MHz+ transducers for advanced dermatology devices

We understand that beauty devices demand not only technical performance but also premium aesthetics and user comfort. Our vertically integrated manufacturing allows us to control every detail—from piezoelectric ceramic selection to final housing finishing.

A: High-frequency ultrasonic transducers operate at frequencies well above standard cleaning ranges (typically 1 MHz to 15 MHz), producing extremely short ultrasonic wavelengths. This enables high-resolution imaging and precise measurement capabilities essential for non-destructive testing (NDT), medical diagnostics, and precision measurement applications.

Primary applications:

Why high frequency matters: Shorter wavelength = Higher resolution. Higher frequencies produce sharper, more detailed images with better surface and near-surface sensitivity. Trade-off: Higher frequencies attenuate faster in dense materials. Lower frequencies (2–5 MHz) penetrate deep steel; higher frequencies (10+ MHz) give superior surface resolution but less depth.

At Soner Tech, we manufacture high-frequency ultrasonic transducers for NDT equipment manufacturers and industrial inspection service providers. Our product range includes:

• Standard straight-beam UT probes (2 MHz, 5 MHz, 10 MHz)
• Dual-element (TOFD-style) transducers for crack detection and weld inspection
• Angle-beam transducers for weld and pipe inspection
• Immersion transducers for automated scanning systems
• Custom high-frequency probes up to 15 MHz with various connector types

A: Single-Element Transducer (Pulse-Echo)

• Principle: One piezoelectric element both transmits and receives ultrasonic pulses
• How it works: Sends a pulse → waits for reflection → receives the echo from the same surface
• Best for: General flaw detection, thickness gauging, flaw sizing, weld inspection
• Advantages: Simpler setup and calibration; better for detecting flaws directly beneath the transducer; lower cost per probe; versatile for many NDT applications
• Limitations: Less sensitive to flaws parallel to the sound beam; requires access to only one surface of the test piece; can have difficulty detecting flaws in highly attenuative materials

Dual-Element Transducer (Pitch-Catch)

• Principle: Two separate elements—one transmitter and one receiver—mounted at a fixed angle or offset
• How it works: Transmits from one element → sound travels through the material → received by the other element
• Best for: Detecting corrosion under insulation, measuring remaining wall thickness in pipes, detecting cracks in restricted access areas, inspection through coatings
• Advantages: Highly sensitive to cracks—especially those parallel to the surface; can inspect through thin coatings and corrosion products; works well on rough or uneven surfaces; excellent for corrosion/erosion monitoring under insulation
• Limitations: More complex calibration (requires setting correct angle and sound path); higher cost per probe; limited to specific inspection geometries

Quick decision guide:

A:

Ultrasonic testing (NDT) probes cover a wide frequency range, and selecting the right frequency requires balancing resolution against penetration depth. Here's a practical guide for common NDT frequencies:

Frequency selection factors:

Practical rules of thumb:

• Steel thickness > 50 mm: Use 1–2.25 MHz
• Steel thickness 15–50 mm: Use 2.25–5 MHz
• Steel thickness < 15 mm: Use 5–10 MHz
• Aerospace composites: Use 5–15 MHz
• Coating thickness measurement: Use 10–20 MHz

Soner Tech manufactures NDT ultrasonic probes across the full frequency spectrum. We also supply specialized probes including: dual-frequency probes for inspection of layered structures; focusing probes (immersion / spherically focused) for enhanced sensitivity; high-temperature probes rated up to 300°C for in-service inspection; custom-frequency probes for unique inspection requirements.