{"id":8428,"date":"2026-06-14T21:12:20","date_gmt":"2026-06-14T13:12:20","guid":{"rendered":"https:\/\/www.sinosonics.com\/uncategorized\/how-to-choose-ultrasonic-transducer\/"},"modified":"2026-06-15T07:58:33","modified_gmt":"2026-06-14T23:58:33","slug":"how-to-choose-ultrasonic-transducer","status":"publish","type":"post","link":"https:\/\/www.sinosonics.com\/es\/ultrasonic-transducer\/how-to-choose-ultrasonic-transducer\/","title":{"rendered":"How to Choose an Ultrasonic Transducer: Frequency, Power &#038; Mounting Guide"},"content":{"rendered":"<style>\n.ss-rich table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;line-height:1.5;box-shadow:0 1px 3px rgba(0,0,0,.05);}\n.ss-rich th{background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;}\n.ss-rich td{padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;}\n.ss-rich tbody tr:nth-child(even) td{background:#f6f8fa;}\n.ss-rich tbody tr:hover td{background:#eef3f8;}\n@media(max-width:600px){.ss-rich table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;}}\n.ss-rich .ss-cta a{transition:transform .15s ease,box-shadow .15s ease}.ss-rich .ss-cta a:hover{transform:translateY(-2px);box-shadow:0 5px 14px rgba(0,0,0,.18)}<\/style>\n<div class=\"ss-rich\">\n<p>Every ultrasonic system \u2014 whether it welds plastic housings, homogenizes pharmaceutical emulsions, or drives a vibrating screen in a mining plant \u2014 starts with one critical component: the transducer. Get the transducer wrong and the system underperforms, overheats, or fails early. Get it right and it runs reliably for years.<\/p>\n<p>This guide walks through the four decisions that matter most when selecting an ultrasonic transducer: frequency, power rating, mounting configuration, and thermal management. It is written for engineers specifying new systems and for procurement teams replacing existing units.<\/p>\n<div class=\"ss-takeaways\" style=\"border:1px solid #cfe0d8;background:#eef7f1;border-radius:8px;padding:16px 20px;margin:24px 0;\">\n<p style=\"margin:0 0 10px;font-weight:700;color:#1e6b46;font-size:16px;\">Key takeaways<\/p>\n<ul style=\"margin:0;padding-left:20px;\">\n<li style=\"margin:4px 0;\">Choose frequency by application: lower kHz gives more energy, higher kHz finer vibration.<\/li>\n<li style=\"margin:4px 0;\">Match OEM power rating or step up one tier; add 25\u201350% margin for continuous duty.<\/li>\n<li style=\"margin:4px 0;\">Use fan-cooled units when duty cycle exceeds 70% or ambient exceeds 35 &#176;C.<\/li>\n<li style=\"margin:4px 0;\">Sino Sonics offers 46+ models spanning 15\u201340 kHz and 300\u20134,500 W.<\/li>\n<li style=\"margin:4px 0;\">Drop-in replacements cover Branson, Telsonic, Herrmann, Dukane, and SoniKKs.<\/li>\n<li style=\"margin:4px 0;\">Verify stack tuning to within &#177;50 Hz with an impedance analyzer before installation.<\/li>\n<\/ul>\n<\/div>\n<h2>What an Ultrasonic Transducer Does<\/h2>\n<p>An ultrasonic transducer (also called a converter) is the electromechanical interface between the generator and the mechanical load. The generator produces a high-frequency AC signal \u2014 typically 15 kHz to 40 kHz \u2014 and the transducer converts that electrical energy into longitudinal mechanical vibration using a stack of piezoelectric ceramic rings clamped between two metal end-masses by a central bolt.<\/p>\n<p>This bolt-clamped Langevin construction is the industry standard for high-power ultrasonics. The piezoelectric stack (typically PZT-8 for continuous-duty applications) sits under pre-compression from the bolt, which allows it to handle the high cyclic tensile and compressive stresses of continuous operation without cracking.<\/p>\n<p>The transducer output \u2014 vibration amplitude at its front face \u2014 connects via a booster to a sonotrode or probe. Amplitude is where the actual process work happens: welding, cutting, emulsification, or sieving.<\/p>\n<h2>Step 1: Match Frequency to the Application<\/h2>\n<p>Frequency is the most consequential spec to get right. It cannot be changed after purchase \u2014 the transducer, booster, and sonotrode must all be tuned to the same frequency.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;line-height:1.5;\">\n<tbody>\n<tr>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Frequency<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Typical Applications<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Notes<\/th>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\"><strong>15 kHz<\/strong><\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Heavy-duty plastic welding (thick parts), large-area welding<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Highest energy per cycle; largest transducer footprint<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\"><strong>20 kHz<\/strong><\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Industrial plastic welding (main workhorse), rubber cutting, homogenizers, cleaning<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Dominant frequency across all sectors; widest support ecosystem<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\"><strong>28 kHz<\/strong><\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Cleaning tanks, specialty welding<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Quieter than 20 kHz; good balance of energy and resolution<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\"><strong>30 kHz<\/strong><\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Precision welding, rotary cutting, homogenizers<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Common in cutting tools and mid-power lab processors<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\"><strong>35 kHz<\/strong><\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Fine plastic welding (fragile parts, thin walls), European welding standards<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Standard for Herrmann, Telsonic, Weber, SoniKKs systems<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\"><strong>40 kHz<\/strong><\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">High-frequency cleaning, precision welding, thin-film cutting<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Finest vibration; lowest amplitude; quietest operation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"ss-note\" style=\"border-left:4px solid #2a7ae2;background:#eef4fc;padding:12px 16px;margin:18px 0;border-radius:0 6px 6px 0;\">\n<p><strong>Rule of thumb:<\/strong> lower frequency delivers more mechanical energy per cycle \u2014 useful when you need cutting or welding force. Higher frequency produces finer vibration \u2014 useful when delicate parts or precision work demands lower impact.<\/p>\n<\/div>\n<p>For vibrating-screen applications (sieving, powder separation), 20 kHz and 28 kHz are both common. The transducer drives the screen frame or the mesh directly, breaking mesh blinding and increasing throughput.<\/p>\n<h2>Step 2: Select the Right Power Rating<\/h2>\n<div class=\"ss-note\" style=\"border-left:4px solid #c47d12;background:#fdf6e9;padding:12px 16px;margin:18px 0;border-radius:0 6px 6px 0;\">\n<p style=\"margin:0;\"><strong style=\"color:#c47d12;\">Warning:<\/strong> Exceeding rated power heats the ceramic stack, causes frequency drift, and can permanently depole the transducer.<\/p>\n<\/div>\n<p>Power rating governs how much mechanical work the transducer can sustain continuously without overheating. Exceeding the rated power causes the ceramic stack to heat up, leading to frequency drift and, eventually, depoling \u2014 irreversible loss of piezoelectric activity.<\/p>\n<p>Sino Sonics ultrasonic transducers span <strong>300 W to 4,000 W<\/strong> per unit. General guidance:<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;line-height:1.5;\">\n<tbody>\n<tr>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Power Range<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Suitable For<\/th>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">300\u2013600 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Precision plastic welding (small components), thin-wall welding, lab homogenizers<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">600\u20131,200 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Standard industrial welding, mid-scale homogenizers, rotary cutting<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">1,200\u20132,000 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Heavy-duty welding (thick ABS \/ PP), continuous food-line cutting<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">2,000\u20133,600 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Large-area welding, high-volume cleaning systems, vibrating screens<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">3,600\u20134,500 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Very large welding assemblies, demanding industrial continuous processes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>If a process runs intermittently (duty cycle below 50%), you can often use a lower power class. Continuous processes \u2014 welding machines running 16-hour shifts, homogenizers processing batch after batch \u2014 should be specified at the higher end to give thermal headroom.<\/p>\n<p>For replacement units, match the OEM power rating exactly or step up by one tier. Stepping down risks premature failure; stepping up is generally harmless if the generator can match the power.<\/p>\n<h2>Step 3: Choose the Mounting Configuration<\/h2>\n<p>Mounting requirements differ substantially by application type:<\/p>\n<h3>Standard Bolt-Clamped Langevin (Welding and Homogenizing)<\/h3>\n<p>The most common configuration. A threaded stud on the transducer front face connects to the booster, and the booster connects to the sonotrode. The assembly is clamped into a pneumatic or servo press. This is the configuration used in virtually all ultrasonic plastic welders and lab\/industrial homogenizers.<\/p>\n<p>Key dimensional specs to match: front face thread size and pitch (M10, M16, or customer-specific), stud length, body outer diameter (typically 50\u201378 mm), and overall length.<\/p>\n<h3>Vibrating Screen Transducers<\/h3>\n<p>Vibrating screens use transducers bonded or bolted directly to the screen frame \u2014 not stacked with a booster and sonotrode. These require a flat-mount or side-mount configuration and are typically selected in the 20\u201328 kHz range. The transducer drives the entire screen at resonance, preventing mesh blinding and helping fine powders pass through efficiently.<\/p>\n<h3>Fan-Cooled Transducers<\/h3>\n<p>For continuous-duty applications at high power and ambient temperatures above 35 \u00b0C, fan cooling extends operating life significantly. The integrated cooling fan maintains the ceramic stack below its thermal limit even under prolonged loading. Sino Sonics offers fan-cooled models in the 20 kHz \/ 2,000 W+ range. Specify fan cooling whenever the duty cycle exceeds 70% or the environment is hot.<\/p>\n<h3>Brand-Compatible Replacement Units<\/h3>\n<p>If you are replacing a transducer in an existing Branson, Telsonic, Herrmann, Dukane, or SoniKKs welding machine, the critical specs are:<\/p>\n<ol>\n<li>Frequency and power (must match the generator output)<\/li>\n<li>Front-face thread and booster interface (must be dimensionally compatible)<\/li>\n<li>Body diameter and overall length (must clear the press housing)<\/li>\n<\/ol>\n<p>Sino Sonics manufactures drop-in compatible replacements for the most common European and American welding platforms:<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;line-height:1.5;\">\n<tbody>\n<tr>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">OEM System<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Frequency \/ Power<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Sino Sonics Replacement<\/th>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Branson 900 series (900M \/ 900MA \/ 900IW)<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">20 kHz \/ 1,200 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Branson 803 \/ 8700<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">20 kHz \/ 2,000 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Branson 922 \/ CJ-20 \/ CR-20<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">20 kHz \/ 3,600 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Branson D30ST (cleaning)<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">40 kHz \/ 600 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Telsonic SG-22 \/ SG-36<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">36 kHz \/ 1,000 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Telsonic (mid-power)<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">20 kHz \/ 3,200 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Telsonic SG\/MPI (high-power)<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">20 kHz \/ 4,500 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Telsonic SG-35 \/ TG-35<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">35 kHz \/ 1,200 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Herrmann KHS-35 \/ Dialog-35<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">35 kHz \/ 1,200 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">SoniKKs 35 kHz standard<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">35 kHz \/ 1,200 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Available<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Dukane iQ \/ 41C28 series<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">20 kHz \/ 2,000 W<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Available<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"ss-note\" style=\"border-left:4px solid #2a7ae2;background:#eef4fc;padding:12px 16px;margin:18px 0;border-radius:0 6px 6px 0;\">\n<p>Tip: the 35 kHz \/ 1,200 W interface is largely cross-compatible across Telsonic, Herrmann, Weber, and SoniKKs platforms \u2014 one Sino Sonics replacement unit covers four brands.<\/p>\n<\/div>\n<h2>Step 4: Consider Thermal Management<\/h2>\n<div class=\"ss-note\" style=\"border-left:4px solid #1e8e5a;background:#eaf7f0;padding:12px 16px;margin:18px 0;border-radius:0 6px 6px 0;\">\n<p style=\"margin:0;\"><strong style=\"color:#1e8e5a;\">Important:<\/strong> Keep the ceramic below its ~320 &#176;C Curie point; heat raises losses, destabilizes amplitude, and accelerates aging.<\/p>\n<\/div>\n<p>Heat is the primary cause of premature transducer failure. The piezoelectric ceramic stack operates correctly only below its Curie temperature (around 320 \u00b0C for PZT-8, much lower for PZT-4). Long before the Curie point, elevated temperature raises internal losses, causes amplitude instability, and accelerates aging.<\/p>\n<p>Three factors increase thermal load:<\/p>\n<ul>\n<li><strong>High duty cycle<\/strong> \u2014 continuous or near-continuous operation<\/li>\n<li><strong>High power<\/strong> \u2014 especially at maximum amplitude<\/li>\n<li><strong>Poor acoustic contact<\/strong> \u2014 a mis-tuned booster or damaged sonotrode reflects energy back into the transducer as heat<\/li>\n<\/ul>\n<p>Mitigation:<\/p>\n<ul>\n<li>Match power rating generously (do not operate at 100% amplitude continuously)<\/li>\n<li>Use fan-cooled models for 24\/7 applications<\/li>\n<li>Verify the stack-up \u2014 transducer, booster, and sonotrode should be tuned to match within \u00b150 Hz if possible; use an <a href=\"https:\/\/www.sinosonics.com\/product-category\/impedance-analyzer\/\">impedance analyzer<\/a> to confirm before installation<\/li>\n<li>Allow cooldown between batches if the duty cycle is variable<\/li>\n<\/ul>\n<h2>Transducer Selection Summary Table<\/h2>\n<table style=\"width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;line-height:1.5;\">\n<tbody>\n<tr>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Parameter<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Decision<\/th>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Application type<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Welding \u2192 20 or 35 kHz; cleaning \u2192 28 or 40 kHz; cutting \u2192 20 or 30 kHz; sieving \u2192 20 or 28 kHz; homogenizing \u2192 20 or 30 kHz<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Power<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Match OEM rating; add 25\u201350% margin for continuous duty<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Mounting<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Bolt-clamp Langevin for welding\/homogenizing; flat-mount or bonded for screens<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Thermal<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Fan cooling if duty cycle &gt; 70% or ambient &gt; 35 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Replacement<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Match frequency, power, and front-face thread; Sino Sonics covers Branson, Telsonic, Herrmann, Dukane, SoniKKs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>What Sino Sonics Offers<\/h2>\n<p>Sino Sonics (brand: SONOBIO) manufactures and stocks <strong>46+ ultrasonic transducer models<\/strong> spanning 15 kHz to 40 kHz and 300 W to 4,500 W. The range includes:<\/p>\n<ul>\n<li><strong>Own-brand standard units<\/strong> \u2014 F30-SA, F50-SA, K50-SA, D30-SA, 35FA915 and others; 15 \/ 20 \/ 25 \/ 28 \/ 30 \/ 35 \/ 40 kHz<\/li>\n<li><strong>Brand-compatible replacements<\/strong> \u2014 Branson, Telsonic, Herrmann, SoniKKs, Dukane; drop-in on the existing press, same tuning, typically 40\u201360% lower cost<\/li>\n<li><strong>Matching boosters<\/strong> \u2014 gain ratios 1:1, 1:1.25, 1:2.5, 1:3 at 20 kHz and 35 kHz<\/li>\n<li><strong>Fan-cooled models<\/strong> for high-duty applications<\/li>\n<\/ul>\n<p>All units use military-grade piezoelectric ceramics, are tested 3 times on a calibrated test bench, and undergo a 72-hour continuous burn-in run before shipment. CE certification covers the assembled transducer. Main Telsonic and Branson replacement models are available from stock with 24-hour dispatch.<\/p>\n<p>Browse the full range: <a href=\"https:\/\/www.sinosonics.com\/product-category\/ultrasonic-transducer\/\">sinosonics.com\/product-category\/ultrasonic-transducer\/<\/a><\/p>\n<div class=\"ss-related\" style=\"border:1px solid #e3e5e9;border-radius:6px;padding:16px 20px;margin:26px 0;background:#fafbfc;\">\n<p style=\"margin:0 0 10px;font-weight:700;color:#1a1a1a;\">Related guides<\/p>\n<ul style=\"margin:0;\">\n<li><a href=\"https:\/\/www.sinosonics.com\/ultrasonic-transducer\/branson-replacement-ultrasonic-transducers\/\">Branson Replacement Ultrasonic Transducers<\/a><\/li>\n<li><a href=\"https:\/\/www.sinosonics.com\/ultrasonic-transducer\/dukane-compatible-ultrasonic-transducers\/\">Dukane-Compatible Ultrasonic Transducers<\/a><\/li>\n<li><a href=\"https:\/\/www.sinosonics.com\/impedance-analyzer\/ultrasonic-impedance-analyzer-guide-tuning-testing-transducers-with-the-pv520a\/\">Ultrasonic Impedance Analyzer Guide (PV520A)<\/a><\/li>\n<li><a href=\"https:\/\/www.sinosonics.com\/piezo-ceramic\/branson-telsonic-piezo-ceramic-replacement-pzt4-pzt8\/\">Branson &#038; Telsonic Piezo Ceramic Replacement (PZT-4 vs PZT-8)<\/a><\/li>\n<\/ul>\n<\/div>\n<h2>Frequently Asked Questions<\/h2>\n<details style=\"border:1px solid #e3e5e9;border-radius:6px;padding:12px 16px;margin:10px 0;background:#fafbfc;\">\n<summary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;list-style:none;\">What happens if I use a transducer with the wrong frequency for my generator?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>The generator and transducer must share the same design frequency. If they differ, the system will not reach resonance. Modern generators have a tracking circuit that searches for resonance within a narrow window (typically \u00b1200\u2013500 Hz around the nominal). Outside that window the generator shuts down on overload or simply outputs at low efficiency. Never substitute a different-frequency unit even if the mechanical interface fits.<\/p>\n<\/div>\n<\/details>\n<details style=\"border:1px solid #e3e5e9;border-radius:6px;padding:12px 16px;margin:10px 0;background:#fafbfc;\">\n<summary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;list-style:none;\">Can I run a 2,000 W transducer on a 1,200 W generator?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Yes, with limitations. The generator limits output power \u2014 it cannot overdrive the transducer. Running a higher-rated transducer at reduced generator power is safe. The reverse (undersized transducer on an oversized generator) is the dangerous scenario.<\/p>\n<\/div>\n<\/details>\n<details style=\"border:1px solid #e3e5e9;border-radius:6px;padding:12px 16px;margin:10px 0;background:#fafbfc;\">\n<summary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;list-style:none;\">How long does an ultrasonic transducer last?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Service life depends heavily on operating conditions. At moderate power and intermittent duty, some units run for 5\u201310 years. Continuous high-power operation shortens life. Ceramic aging (gradual piezoelectric depolarization over time) is normal; periodic re-tuning and an impedance check with a PV520A analyzer identifies aging stacks before they fail unexpectedly.<\/p>\n<\/div>\n<\/details>\n<details style=\"border:1px solid #e3e5e9;border-radius:6px;padding:12px 16px;margin:10px 0;background:#fafbfc;\">\n<summary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;list-style:none;\">Do Sino Sonics replacement transducers need re-tuning on the existing welding machine?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Generally no for direct replacements \u2014 the stack is tuned to the same nominal frequency. However, slight amplitude differences between units exist. After installing a replacement, running one weld cycle and verifying the generator&#8217;s frequency readout is good practice. For critical applications, an impedance analyzer measurement of the new unit with your booster and sonotrode confirms the system resonance before production restarts.<\/p>\n<\/div>\n<\/details>\n<details style=\"border:1px solid #e3e5e9;border-radius:6px;padding:12px 16px;margin:10px 0;background:#fafbfc;\">\n<summary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;list-style:none;\">How do I know if my transducer is failing rather than the generator or sonotrode?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Measure the transducer&#8217;s impedance curve with a PV520A analyzer, disconnected from the generator and sonotrode. A healthy transducer shows a clean resonance peak at nominal frequency with Qm above 600\u2013800 (for PZT-8 types). A broadened, shifted, or split peak indicates ceramic damage or a loosened bolt stack. This isolates the fault to the transducer before an expensive generator service call.<\/p>\n<\/div>\n<\/details>\n<h2>Request a Quote or Replacement Cross-Reference<\/h2>\n<div class=\"ss-cta\" style=\"display:flex;flex-wrap:wrap;gap:14px;margin:24px 0 6px;\"><a href=\"https:\/\/wa.me\/8618626321806\" target=\"_blank\" rel=\"nofollow noopener\" style=\"flex:1 1 240px;display:inline-flex;align-items:center;justify-content:center;gap:10px;background:#25d366;color:#fff;text-decoration:none;font-weight:700;font-size:16px;line-height:1;padding:16px 22px;border-radius:10px;box-shadow:0 2px 8px rgba(37,211,102,.35);\"><svg width=\"20\" height=\"20\" viewBox=\"0 0 24 24\" fill=\"#fff\" aria-hidden=\"true\"><path d=\"M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.149-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.148-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413z\"\/><\/svg>Chat on WhatsApp<\/a><a href=\"mailto:wu@sinosonics.com?subject=Transducer%20Quote%20Request\" style=\"flex:1 1 240px;display:inline-flex;align-items:center;justify-content:center;gap:10px;background:#1f3a5f;color:#fff;text-decoration:none;font-weight:700;font-size:16px;line-height:1;padding:16px 22px;border-radius:10px;box-shadow:0 2px 8px rgba(31,58,95,.3);\"><svg width=\"20\" height=\"20\" viewBox=\"0 0 24 24\" fill=\"#fff\" aria-hidden=\"true\"><path d=\"M20 4H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2zm0 4l-8 5-8-5V6l8 5 8-5v2z\"\/><\/svg>Get a Quote<\/a><\/div>\n<p style=\"text-align:center;margin:2px 0 10px;font-size:14px;\"><a href=\"https:\/\/www.sinosonics.com\/product-category\/ultrasonic-transducer\/\" style=\"color:#5a6b7b;text-decoration:none;\">Browse the full product range &rarr;<\/a><\/p>\n<p>Send your frequency, power rating, and mounting dimensions \u2014 or the OEM part number you are replacing \u2014 and we will return a cross-reference and price within one business day.<\/p>\n<\/div>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What happens if I use a transducer with the wrong frequency for my generator?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The generator and transducer must share the same design frequency. If they differ, the system will not reach resonance. Modern generators have a tracking circuit that searches for resonance within a narrow window (typically \u00b1200\u2013500 Hz around the nominal). Outside that window the generator shuts down on overload or simply outputs at low efficiency. Never substitute a different-frequency unit even if the mechanical interface fits.\"}},{\"@type\":\"Question\",\"name\":\"Can I run a 2,000 W transducer on a 1,200 W generator?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, with limitations. The generator limits output power \u2014 it cannot overdrive the transducer. Running a higher-rated transducer at reduced generator power is safe. The reverse (undersized transducer on an oversized generator) is the dangerous scenario.\"}},{\"@type\":\"Question\",\"name\":\"How long does an ultrasonic transducer last?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Service life depends heavily on operating conditions. At moderate power and intermittent duty, some units run for 5\u201310 years. Continuous high-power operation shortens life. Ceramic aging (gradual piezoelectric depolarization over time) is normal; periodic re-tuning and an impedance check with a PV520A analyzer identifies aging stacks before they fail unexpectedly.\"}},{\"@type\":\"Question\",\"name\":\"Do Sino Sonics replacement transducers need re-tuning on the existing welding machine?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Generally no for direct replacements \u2014 the stack is tuned to the same nominal frequency. However, slight amplitude differences between units exist. After installing a replacement, running one weld cycle and verifying the generator\u2019s frequency readout is good practice. 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Langevin bolt-clamp, fan-cooled, vibrating-screen types explained.<\/p>","protected":false},"author":1,"featured_media":7128,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[],"class_list":["post-8428","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ultrasonic-transducer"],"_links":{"self":[{"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts\/8428","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/comments?post=8428"}],"version-history":[{"count":7,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts\/8428\/revisions"}],"predecessor-version":[{"id":8529,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts\/8428\/revisions\/8529"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/media\/7128"}],"wp:attachment":[{"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/media?parent=8428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/categories?post=8428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/tags?post=8428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}