Piezoceramic elements are the most important components of equipment used for ultrasonic cleaning, welding or machining. In the above applications, reliable, high power ultrasonic waves are the key performance factor in ultrasonic equipment.

Ultrasonic Cleaning

Ultrasonic cleaning is widely used in cleaning jewelry, eyeglasses, dental/surgical parts and mechanical parts. Ultrasonic cleaning facilities are also important in many electronic or semiconductor production floors. When a piezoelectric transducer generates an ultrasonic vibration into the cleaning liquid, with sufficient amplitude and acceleration, millions of microscopic bubbles form due to the pressure change within the liquid. When the bubbles collapse, the energy thus released form tiny jets. When directed to the part surface, these jets will loosen surface contaminants, remove dust, dirt, oil residue from the surface.

Ultrasonic Welding

Ultrasonic welding is a fast and cost-effective way for joining two components together. It utilizes the friction energy that is induced by ultrasonic vibration at the contact surfaces of two pressed-together parts. When a piezoelectric transducer generates a high-frequency ultrasonic vibration to the joining surfaces of two pressed-together parts, the friction is so much that the heat being generated fuses the joining surfaces together. Both metal and plastic parts can be welded through this process.

Ultrasonic Machining

Ultrasonic machining is widely used for machining hard and brittle materials, such as glass, ceramics…etc. The machining tool, when excited to vibrate at ultrasonic frequencies, remove materials from the workpiece with the help of an abrasive suspension. The machining tool, which never really touches the workpiece, passes the ultrasonic vibration to the abrasive particles in suspension. Material removal is achieved by the direct and indirect hammering of abrasive particles against the workpiece.


  • Piezoceramic transducers as the source of high power ultrasonic vibration needed in ultrasonic cleaning/machining/welding equipment.


  • High reliability, high power output
  • High-quality factor, low heat generation
  • Excellent mechanical properties
  • Excellent frequency stability

Dimensions OD×ID×t (mm)Resonant Frequency (kHz)Capacitance (pF)Dissipation Factor (%)

Unictron’s premium piezoceramic elements are the perfect solution for your needs to generate stable ultrasonic vibration. Our piezoceramic components have high mechanical quality factor and high electro-mechanical coupling factor. With high frequency stability and low impedance at resonant frequency, they deliver high power output with good reliability. Our engineering teams have been working in the piezoceramic industry for more than 25 years. We have a sound background in materials formulations and ceramic processing technologies. With advanced characterization and manufacturing facilities, we are able to develop and mass produce various dimensions of piezoceramic discs and rings with high quality to fit your needs.