Ultrasonic generators

The ultrasonic generator generates the AC voltage required to operate the oscillating system. mth supplies the right generator for all applications with frequencies from 20 kHz to 40 kHz. Further information can be found here customised solutions »

  • The K1 series is a perfect match for our manual welding guns and can also be used for mobile applications thanks to its low weight.
  • The ultrasonic generators of the K5 series, which are equipped with outputs of up to 2,000 W, are suitable for higher outputs.
  • For use in special machines, we have the K3 series in our programme, a space-saving device for installation in control cabinets.

Integrating ultrasonic generators

Depending on the application, the ultrasonic generators can be controlled either via potential-free contacts or directly via the PLC using ProfiNet, for example. This allows the integrated microcontroller to specify time and energy values and, after appropriate parameterisation, the ultrasonic generator even offers simple sequence control.

Welding on time and energy

All generators have the “Weld on time” and “Weld on energy” functions as standard. When welding to a preset time value, the generator interrupts the ultrasonic output after the time has elapsed. At the same time, the energy emitted until the time has elapsed is displayed. If you have achieved a satisfactory welding result, you can specify the energy determined in this way as the target value. The generator now interrupts the sound emission as soon as the desired energy has been emitted, regardless of the contact pressure.

Do you have any questions about ultrasonic generators?

We will be happy to help you personally with your individual wishes and requirements:

Other ultrasonic components


Variety of ultrasonic converters

mth offers ultrasonic converters for common frequencies such as 20 kHz, 30 kHz, 35 kHz and 40 kHz. Der Konverter wandelt den hochfrequenten Wechselstrom des Ultraschall-Generators in mechanische Schwingungen mit Amplituden von etwa 5-12 µm um.


Our ultrasonic boosters

The ultrasonic boosters (amplitude transformers) regulate the input amplitude at the sonotrode using a transmission ratio of usually 1:1 to around 1:3. Our boosters are available for 20 kHz, 22 kHz, 30 kHz, 35 kHz and 40 kHz.


Energy-efficient welding

For more than two decades, we have been manufacturing sonotrodes in-house for various ultrasonic systems from different manufacturers suitable for common applications such as welding, cut-off welding, riveting, embossing, punching and cutting.