Basic Components of a Rotary Ultrasonic System

A typical Soniseal™ 40 rotary ultrasonic system used in a packaging application.


Aurizon’s rotary ultrasonic bonding machines are composed of several basic components and sub-components.  (Actual system components may differ depending on the application it was designed for.)


Stack Assembly
The stack assembly consists of a converter, drive booster and a rotary ultrasonic horn (sonotrode) along with its vibration isolation/mounting flange.  All of these components are tuned to resonate at the same frequency.

  • Converter-converts the electrical signal into a mechanical vibration
  • Booster-modifies the amplitude of the vibration
  • Sonotrode – applies the acoustic vibration to the materials to be bonded

Horn Assembly
The horn assembly is the housing into which the stack assembly mounts.  It provides a means of rotation, rotary electrical contacts (slip ring) and cooling air. It often includes an actuation means. The gear box and motor control the rotational speed of the anvil/horn assembly.

Anvil Assembly
The anvil assembly provides a means to mount and rotate an anvil roll with a pattern specifically designed for the application.  The anvil pattern controls how the vibration is applied to the material.

Actuation Mechanism
This device moves either the horn assembly or the stack assembly to bring them into close proximity or contact and apply a force appropriate for the bonding application.

The frame consists of the structure that integrally mounts and suitably controls the position (incl. rigidity, vibration characteristics, etc.) of the aforementioned assemblies.

The ultrasonic power supply consists of a generator that is specifically designed to be compatible with the unique operating characteristics of the rotary ultrasonic horn.

The web control means (electrical drives, conveyors, web guides, etc.) are typically provided by the customer (to comply with their standard systems); however, Aurizon can also supply this equipment if desired.  Another system part that is not typically included in the definition of the bonder is the guard assembly, which may or may not be required depending on the application and desire of the customer.


Contact Aurizon to learn more about our rotary ultrasonic bonders.


Or check out some of our other posts:

Comparing Rotary Ultrasonic to Stationary or Blade Technologies

Replacing Heat or Glue-Based Processes with Rotary Ultrasonic Technology in an Industrial Application

High Power Ultrasonic Technology for Bonding Substrates with Applications in Disposable Hygiene Products and Flexible Packaging



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