Ultrasonic Sealing Systems for Tubular Bags

Our new ultrasonic sealing system for vertical (VFFS) and horizontal (HFFS) tubular bag machines is an innovation in packaging technology. It delivers absolutely tight seal seams and is extremely material and energy efficient.

The cold tools press the tubular bag together for sealing. The ultrasonic oscillations of the sonotrodes then cause the molecular chains in the sealing area to break open with formation of heat and new joints to be formed. In a very short time, excellent quality seal seams are produced.

Production faults are drastically reduced with the use of ultrasound, because the contents themselves are not heated. Also, the contents to be found in the seal area are separated by the ultrasonic effect during the sealing process. The quality of the seam produced and the barrier layers of the bag film are not affected.


  • Consistent sealing results of outstanding quality
  • No distortion of the seals (hot-tack)
  • Expandable seam widths as a result of modular sonotrode systems
    Reduced film consumption
  • Narrow sealing seams (down to < 1 mm possible)
  • Tight sealing of very thin films, even when they are in contact with contents
  • No destruction of barrier layers
  • Far fewer production faults
  • Reduced maintenance costs
  • Can be used in vertical (VFFS) and horizontal (HFFS) tubular bag machines

The ultrasonic sealing system for tubular bags has been successfully used for years with our partner GEA Food Solutions in VFFS machines. More Details are available on the website of GEA Food Solutions.

Subject to alterations.

For further information, please contact the person alongside.