Gentle and efficient processing thanks to the torsional sonotrode

The patented torsional sonotrode from the MS Ultrasonic Technology Group gently and precisely processes membranes, films and injection molded parts. These sonotrodes are used in the MS sonxTOP series machines as well as in the MS sonxMAC custom machines.

Torsional ultrasonic welding is a high frequency friction welding process. Vibrations are introduced tangentially, the sonotrode always takes the upper join partner with it and moves it horizontally to the lower component. Due to the high frequency of 20–35 kHz, the amplitude and the pressure, a melting occurs between the two join partners as a result of gentle friction. In comparison with longitudinal vibrations, weak points such as electronics, bridges and ribs within the component are subjected to even less stress.

Advantages of torsional welding of membranes:

• Particularly gentle welding process
• Punching and sealing in one process
• No burning or fraying of the membrane
• Eliminates the risk of perforation
• Maximum tightness of the welded membrane
• Thinnest membranes made of PTFE and other materials can be punched and welded

Advantages of torsional riveting of rivet domes:

• Gentle tangential energy input protects sensitive components and electronics
• Minimal vibrations in the component
• Minimal energy input into the component
• Clean shaping of the rivet heads
• Reduction of particle formation during the riveting process

Torsional welding is suitable for many other applications, let us perfect your solution together.

Examples:

• DAE (pressure equalization element) membranes
• Membrane applications (e.g. degassing valves)
• Medical droplet chambers (e.g. infusion filters)
• Filters
• Thin injection molded parts (nozzles, valves, connecting pieces)