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All NUCLEUS Rotosonic machines are also available as portal type. Due to its torsion-proof steel construction, even highest welding pressures can be reached. 

Portal machines with a wide throughput (1,5 m to 6 m) facilitate the handing when welding wide, heavy material webs. The width and number of the ultrasonic welding heads are freely configurable and optionally motor driven. 

Nucleus Portalmaschine


  • Portal widths of 1,5m to 6m (other sizes on request)
  • Optional number of welding heads per portal
  • Mechanical or motor-driven positioning of the welding heads possible
  • Optional customized table 

Machine highlights 

Highlights 1

Highlights 2

Machine details

Technical characteristics
Ultrasonic frequency35kHz
Ultrasonic generatorNUCLEUS digital generator DG1 1000W
SonotrodeTC12: 12mm wide cutting sonotrode
Contact pressureDigital NUCLEUS press unit with 600 N contact force (without air pressure)
Speedmax. 24,3 m/min
Number of drives2
Welding widthmax. 12 mm
Handling of the machine11“ Multi-Touch-Display
Power supply230 V, 50 Hz reversible to 110 V, 60 Hz
Portal width1,5 m to 6 m (other sizes on request)
Welding headson request
Tables:on request – individually made for your application 

Application examples for ultrasonic welding

Your personal sales partner

You can find our sales partners in many countries in Europe and North America. If you have any questions, please do not hesitate to contact us or our sales partners. We also prepare welding samples for you.