Industry Background

Large diameter low-frequency ring piezoelectric ceramics are core functional components widely used in industrial ultrasonic cleaning, ultrasonic vibration equipment and high-power ultrasonic transducers. As industrial ultrasonic applications continuously upgrade, the market requires piezo ceramic rings with stable performance, low dielectric loss and good consistency under continuous high-power operation. PZT-8 material is well known for high power resistance and low heat generation. SWT is a reliable manufacturer of piezoelectric components, supplying various sizes of ring piezo ceramics for global industrial ultrasonic customers with samples and bulk orders available.

About Guangdong SWT

Guangdong SWT Smart Technology Co., Ltd. specializes in piezoelectric ceramics, electro-acoustic components and ultrasonic transducers. We maintain complete in-house production lines, covering ceramic powder formulation, isostatic pressing, high-temperature sintering, silver electrode firing and full parameter testing. Our product range includes ring piezo ceramics, disc piezo ceramics, glass glaze atomizing discs, piezo buzzers, electromagnetic buzzers and ultrasonic sensors. Every batch is strictly inspected before shipment to guarantee stable performance for OEM and ODM mass orders. Visit our official website www.swt99.com for datasheets and sample requests.

Key Technical Specifications

Model No.: 8C3815-42DA

• Outer diameter: φ38±0.2 mm
• Inner diameter: φ15±0.2 mm
• Thickness: 5.0±0.2 mm
• Static capacitance: 1600PF±20%
• Dielectric loss: ≤0.8%
• Resonant frequency: 42±4 kHz
• Resonant impedance: ≤100Ω
• Max working voltage: ≤35V
• Operating temperature: -20℃ ~ +80℃
• Material: PZT-8

Product Advantages

1. PZT-8 high-power material: Designed for heavy-duty ultrasonic applications, low dielectric loss, less heat accumulation during long time continuous operation.
2. Large size low frequency design: 38mm outer diameter, 42kHz resonant frequency, can produce strong ultrasonic vibration output.
3. Clear polarity marking: "+" sign marked on the ceramic surface for easy identification and soldering during transducer assembly.
4. Controlled dimension tolerance: Strict OD, ID and thickness tolerance ensures excellent batch consistency for mass production assembly.
5. Wide working temperature range: Stable performance within -20℃~80℃, suitable for different industrial working environments.
6. Flexible supply: SWT factory direct supply, support sample testing, small trial orders and customized piezo parameters.

Applications

This 38×15×5mm PZT-8 ring piezoelectric ceramic is widely used in high-power ultrasonic cleaning transducers, ultrasonic vibration devices, industrial ultrasonic processing equipment and other low-frequency ultrasonic systems. It is suitable for industrial equipment requiring stable and powerful ultrasonic vibration. We support small sample orders and large volume procurement. Please contact us for technical documents and quotations.

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