{"id":8424,"date":"2026-06-14T21:11:45","date_gmt":"2026-06-14T13:11:45","guid":{"rendered":"https:\/\/www.sinosonics.com\/uncategorized\/branson-telsonic-piezo-ceramic-replacement-pzt4-pzt8\/"},"modified":"2026-06-15T07:58:01","modified_gmt":"2026-06-14T23:58:01","slug":"branson-telsonic-piezo-ceramic-replacement-pzt4-pzt8","status":"publish","type":"post","link":"https:\/\/www.sinosonics.com\/es\/piezo-ceramic\/branson-telsonic-piezo-ceramic-replacement-pzt4-pzt8\/","title":{"rendered":"Branson \/ Telsonic Piezoelectric Ceramic Replacement \u2014 PZT-4 &#038; PZT-8 Rings"},"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>When a Langevin-type ultrasonic transducer fails \u2014 whether in a Branson welder, Telsonic system, or any other brand \u2014 the root cause is often a cracked, delaminated, or depolarized piezoelectric ceramic ring. Replacing the ceramics, rather than the entire converter assembly, can restore full function at a fraction of the cost of a new transducer.<\/p>\n<p>Sino Sonics manufactures PZT-4 and PZT-8 piezoelectric ceramic rings from \u03a610 mm to \u03a670 mm in stock standard sizes, with custom OD \/ ID \/ thickness available. Every piece is individually tested and supplied with a performance report. Material grade is military-grade (high-density, poreless), the same class used in our own converter assemblies.<\/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;\">Transducer failures often trace to cracked, delaminated, or depolarized ceramic rings.<\/li>\n<li style=\"margin:4px 0;\">PZT-8 (Qm \u22651800) suits high-power continuous welding; PZT-4 fits cleaning and mid-power.<\/li>\n<li style=\"margin:4px 0;\">Stock rings span &#216;10\u2013&#216;70 mm; custom &#216;10\u2013&#216;90 mm per specification.<\/li>\n<li style=\"margin:4px 0;\">&#216;32\u201335 mm rings priced at $4.00 each versus $5.00 list.<\/li>\n<li style=\"margin:4px 0;\">Measure OD, ID, and thickness from the failed ring; every piece tested individually.<\/li>\n<\/ul>\n<\/div>\n<h2>Why Piezo Ceramics Fail in Ultrasonic Transducers<\/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> Avoid over-tightening the center bolt and exceeding the ~320 &#176;C Curie point, which crack or depolarize the ceramic.<\/p>\n<\/div>\n<p>Ultrasonic transducers run ceramic stacks under high cyclic mechanical stress. Common failure modes include:<\/p>\n<ul>\n<li><strong>Thermal depolarization<\/strong> \u2014 operating above the Curie point (typically 320 \u00b0C for PZT-8) irreversibly reduces piezoelectric activity<\/li>\n<li><strong>Mechanical cracking<\/strong> \u2014 from over-tightening the center bolt, impact, or thermal shock<\/li>\n<li><strong>Delamination<\/strong> \u2014 adhesive or silver electrode layer separation, often visible as discoloration<\/li>\n<li><strong>Fatigue<\/strong>\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 style=\"margin:0;\"><strong style=\"color:#2a7ae2;\">Tip:<\/strong> For high-duty welding transducers like Branson 900\/803\/8700\/922 or Telsonic MPI\/SG, choose PZT-8.<\/p>\n<\/div>\n<p> \u2014 gradual reduction in coupling efficiency over high-duty-cycle service<\/li>\n<\/ul>\n<p>In all these cases, the metal mass blocks and booster are typically undamaged. Replacing only the ceramic stack \u2014 and re-torquing the assembly \u2014 is a viable and economical repair path.<\/p>\n<h2>PZT-4 vs. PZT-8 \u2014 Which Material for Your Transducer?<\/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;\">Property<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">PZT-4 (PZT-42 \/ PZT-43)<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">PZT-8 (PZT-82)<\/th>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Mechanical quality factor Qm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">700\u20131000<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u2265 1800<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Planar coupling Kp<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">55\u201360%<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u2014<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Thickness coupling Kt \/ Kr<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u2014<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u2265 46%<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Dielectric loss tg \u03b4<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Higher<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">&lt; 0.3%<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Curie temperature<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">~330 \u00b0C<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">320 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Typical use<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Cleaning transducers, sensors, mid-power welding<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">High-power continuous welding, industrial welding<\/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> If you are replacing ceramics in a high-duty-cycle welding transducer (Branson 900 \/ 803 \/ 8700 \/ 922, Telsonic MPI\/SG series), choose <strong>PZT-8<\/strong>. If the transducer is used in cleaning tanks or lower-duty welding, <strong>PZT-4<\/strong> is cost-effective and widely compatible.<\/p>\n<\/div>\n<p>Not sure which grade your original ceramic is? Branson welding transducers generally use PZT-8-class hard piezoelectric material. Telsonic systems also predominantly use hard PZT for their welding converters. If you have the original part number, send it to us and we will match the material.<\/p>\n<h2>Stock Size Cross-Reference \u2014 Piezo Ceramic Rings<\/h2>\n<p>The table below lists common Langevin transducer ceramic ring sizes found in Branson, Telsonic, and equivalent systems. These are standard sizes we carry in stock.<\/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;\">Outer Diameter<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">ID \/ Thickness (examples)<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Typical Transducer Application<\/th>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a620 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Various<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Small 40 kHz cleaning transducers, compact welding<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a625 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Various<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">35 kHz welding converters (Telsonic SG-35, equivalents)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a630 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Various<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">30 kHz, compact 20 kHz converters<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a632\u2013\u03a635 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Various<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">20 kHz \/ 35 kHz mid-power welding (most common stacking size)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a640 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Various<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Standard 20 kHz industrial welding converters (Branson 900 \/ 803 class)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a650 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Various<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">High-power 20 kHz converters (Branson 922 \/ CJ-20, Telsonic MPI class)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a655 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Various<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Heavy-duty 20 kHz and 15 kHz converters<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a660 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Various<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Large-area 15 kHz \/ 20 kHz welding, power-dense systems<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Custom \u03a610\u2013\u03a690 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Per spec<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Any non-standard transducer, including angled \/ curved<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Full dimensional stock list: <a href=\"https:\/\/www.sinosonics.com\/piezoceramic\/piezoceramic-ring-stcok-size\/\">sinosonics.com\/piezoceramic\/piezoceramic-ring-stcok-size\/<\/a><\/p>\n<blockquote>\n<div class=\"ss-note\" style=\"border-left:4px solid #5a6b7b;background:#f1f4f7;padding:12px 16px;margin:18px 0;border-radius:0 6px 6px 0;\">\n<p><strong>Note:<\/strong> Branson and Telsonic part numbers are cited for cross-reference purposes only. Sino Sonics is not affiliated with either company. Our ceramics are manufactured to standard piezoelectric dimensions and are not original OEM parts.<\/p>\n<\/div>\n<\/blockquote>\n<h2>Matching Ceramics to Your Transducer \u2014 What to Measure<\/h2>\n<p>To order the correct replacement ceramic ring, you need three measurements from the existing (failed) ceramic or from the transducer drawing:<\/p>\n<ol>\n<li><strong>Outer diameter (OD)<\/strong> \u2014 measured across the flat face<\/li>\n<li><strong>Inner diameter (ID)<\/strong> \u2014 the center bore (for the clamping bolt)<\/li>\n<li><strong>Thickness<\/strong> \u2014 the dimension along the polarization axis (height of the ring)<\/li>\n<\/ol>\n<p>Optional but helpful: resonant frequency of the transducer (20 kHz, 35 kHz, 40 kHz, etc.) and number of ceramic rings in the stack (typically 2\u20134 for Langevin converters).<\/p>\n<p>Send these measurements to wu@sinosonics.com and we will confirm the matching stock size or quote a custom ceramic to your drawing.<\/p>\n<h2>Why Source Ceramics from Sino Sonics<\/h2>\n<h3>Military-Grade Material<\/h3>\n<p>Our PZT-4 and PZT-8 ceramics are manufactured using a high-pressure, high-temperature sintering process that produces a poreless, high-density microstructure. Lower-cost commodity ceramics often have internal voids that act as stress concentrators, leading to premature cracking under cyclic ultrasonic loading.<\/p>\n<h3>100% Individual Testing<\/h3>\n<p>Every ceramic ring is tested individually before shipment. We provide a performance report (resonant impedance, capacitance, mechanical quality factor) for each batch, which allows you to verify the ceramic before assembling it into the transducer stack.<\/p>\n<h3>OEM Transducer Assembly Supply<\/h3>\n<p>If you build or repair ultrasonic transducers, we can supply matched ceramic pairs or full stacks with consistent characteristics \u2014 important because ceramics in a Langevin stack should be matched in capacitance to balance the load. Matched sets are available on request.<\/p>\n<h3>Custom Geometry<\/h3>\n<p>Standard rings cover most Branson and Telsonic stack geometries. For unusual sizes \u2014 including angled face rings for focused transducers or non-circular cross-sections \u2014 custom manufacturing is available. OD \/ ID \/ thickness specified to your drawing. MOQ 500 pieces per specification.<\/p>\n<h3>Competitive Unit Price<\/h3>\n<p>\u03a632\u201335 mm rings (the most common Langevin stack size) are stocked at $4.00 each (list $5.00). Larger sizes scale accordingly. Buying ceramics for transducer repair is substantially cheaper than a new complete transducer assembly, even factoring in labor.<\/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\/how-to-choose-ultrasonic-transducer\/\">How to Choose an Ultrasonic Transducer<\/a><\/li>\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\/impedance-analyzer\/ultrasonic-impedance-analyzer-guide-tuning-testing-transducers-with-the-pv520a\/\">Ultrasonic Impedance Analyzer Guide (PV520A)<\/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;\">How do I know if the ceramics are the failed component vs. the rest of the transducer?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Use an LCR meter or impedance analyzer to measure the capacitance and resonant frequency of the disassembled ceramic stack. A cracked ceramic will show abnormal capacitance or a split resonance peak. A depolarized ceramic will show near-zero piezoelectric response. If you have an impedance analyzer (we also sell the PV520A), you can sweep the transducer before and after reassembly to confirm recovery.<\/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 I need to re-polarize the ceramics after assembling the transducer?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>No. Our ceramics are shipped fully polarized. The polarization axis aligns with the thickness direction. During assembly, maintain correct polarity orientation (all ceramics in a stack must be oriented the same way relative to the clamping bolt axis).<\/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;\">What silver electrode coating is used?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Standard silver (Ag) electrode. Gold (Au) electrode is available for custom orders where higher corrosion resistance is required.<\/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 you supply the full Langevin transducer rebuild kit \u2014 ceramics, electrodes, insulating washers, center bolt?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Yes. We can supply a rebuild kit including matched ceramics, copper electrode shims, PTFE insulating washers, and stainless steel center bolt sized to your transducer spec. Contact us with the transducer model or dimensions.<\/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;\">What is the delivery time for stock sizes?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Standard stock ring sizes ship within 10 business days. Custom sizes add 2\u20133 weeks production.<\/p>\n<\/div>\n<\/details>\n<h2>Request Pricing<\/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=Quote%20Request%20-%20Sino%20Sonics\" 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\/piezo-ceramic-ring\/\" style=\"color:#5a6b7b;text-decoration:none;\">Browse the full product range &rarr;<\/a><\/p>\n<p>Send us OD \u00d7 ID \u00d7 thickness (in mm), material grade (PZT-4 or PZT-8), and quantity. We will respond with pricing and availability within one business day.<\/p>\n<p>*See also: <a href=\"https:\/\/www.sinosonics.com\/product-category\/ultrasonic-transducer\/\">All Ultrasonic Transducers<\/a> \u00b7 <a href=\"https:\/\/www.sinosonics.com\/product-category\/ultrasonic-homogenizer-sonicator\/\">Ultrasonic Homogenizers<\/a>*<\/p>\n<\/div>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How do I know if the ceramics are the failed component vs. the rest of the transducer?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use an LCR meter or impedance analyzer to measure the capacitance and resonant frequency of the disassembled ceramic stack. A cracked ceramic will show abnormal capacitance or a split resonance peak. A depolarized ceramic will show near-zero piezoelectric response. If you have an impedance analyzer (we also sell the PV520A), you can sweep the transducer before and after reassembly to confirm recovery.\"}},{\"@type\":\"Question\",\"name\":\"Do I need to re-polarize the ceramics after assembling the transducer?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Our ceramics are shipped fully polarized. The polarization axis aligns with the thickness direction. During assembly, maintain correct polarity orientation (all ceramics in a stack must be oriented the same way relative to the clamping bolt axis).\"}},{\"@type\":\"Question\",\"name\":\"What silver electrode coating is used?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Standard silver (Ag) electrode. Gold (Au) electrode is available for custom orders where higher corrosion resistance is required.\"}},{\"@type\":\"Question\",\"name\":\"Can you supply the full Langevin transducer rebuild kit \u2014 ceramics, electrodes, insulating washers, center bolt?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. We can supply a rebuild kit including matched ceramics, copper electrode shims, PTFE insulating washers, and stainless steel center bolt sized to your transducer spec. Contact us with the transducer model or dimensions.\"}},{\"@type\":\"Question\",\"name\":\"What is the delivery time for stock sizes?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Standard stock ring sizes ship within 10 business days. Custom sizes add 2\u20133 weeks production.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PZT-4 and PZT-8 piezoelectric ceramic rings \u03a610\u2013\u03a670 mm \u2014 replacement elements for Branson, Telsonic, and other ultrasonic transducers. Military-grade. wu@sinosonics.com<\/p>","protected":false},"author":1,"featured_media":7906,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-8424","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-piezo-ceramic"],"_links":{"self":[{"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts\/8424","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=8424"}],"version-history":[{"count":6,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts\/8424\/revisions"}],"predecessor-version":[{"id":8526,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts\/8424\/revisions\/8526"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/media\/7906"}],"wp:attachment":[{"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/media?parent=8424"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/categories?post=8424"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/tags?post=8424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}