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CEMAS elettra - Your partner in plastic joining

Ultrasonic welding: The old but gold technology

The old but gold technology

Somebody calls the ultrasonic welding as "the old technology", because it is the oldest technique in plastic joining. Nevertheless, this technology is still very competitive in various welding fields, due to the great versatility, flexibility and cost-effectiveness that characterize it.

Cemas technological Improvement

For these reasons, we have decided to invest in this welding system and to modernize it, not by changing its application mode, but by technologically improving it: we have developed a range of fully electric ultrasonic welding machines. Therefore, our machines are more precise, faster and cleaner than before, and able to ensure more control, more welding steps and more precise regulations of all the welding parameters.
Thanks to this technological modernization, nowadays ultrasonic welding constitutes a valid and efficient alternative, even if compared to the most modern joining welding technologies.

No compromise for quality!

To integrate our welding machines we use only top class materials and components, the best on the market, manufactured by word leading suppliers. The components we choose are never from sub-brands: this ensures the best performances in terms of speed, productivity and versatility.

Safety and efficiency are our ultimate goal.

Why buy a CEMAS ultrasonic machine

  • Versatile

    With the PC Panel it is possible to have a perfect traceability for all welding parameters (in particular welding energy, force and depth) up to 100.000 welding parts.
  • Time saving

    The cooling time is very quick, and the pieces do not need to remain inside the tool for a long period of time to dry or cure the welding joint.
  • Full electric

    Full electric means unmatched repetitiveness, accuracy and fluidity in movements dynamics and, for this reason, guarantees an aesthetically perfect and clean joint. In addition, thanks to its full electrical nature, this technology doesn't require high level of maintenance
  • Safe

    This type of welding is not dangerous to humans, indeed the vibration are called ultrasonic because they are at frequencies higher than those that can be heard by the human ear.
  • Fast

    This welding technology is much faster than conventional adhesives or solvents.
  • No design limits

    Ultrasonic welding technology can weld almost any geometry.
  • Made for your needs

    Although there are some "standard model" machines, each ultrasonic welding machine is designed specifically and "around" to the component that must be welded.
    Indeed, in our headquarters in Carmagnola we provide customers with a laboratory where they can carry out any welding test. Thanks to the know-how and experience of our team, we take care of your projects during the entire production cycle, from initial design to final implementation. We develop for you and with you the most efficient ultrasonic welding machines by a "customization" process of the equipment.
  • Highly customizable
  • No compromise for quality
  • Easy maintenance
  • Ergonomic loading station
  • Reliability
  • Energy saving technology
  • Innovative and user friendly UI
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  • Highly customizable

    Many standard features included in our machines are optionals for competitors and, should this not be enough, just turn the page to discover a full range of over 60 optionals for your tailor-made machines.
  • No compromise for quality

    All components used by CEMAS are from world leading suppliers and never sub-brands.
    Safety is our ultimate goal, as well as a prompt availability of spares worldwide.
  • Easy maintenance

    The use of the latest-generation electronic components has resulted in a remarkably smaller control panel, and in positioning the hydraulic unit below the control panel for the 240 Hz machines. This change has totally cleared an inner compartment and has made tooling maintenance and set up operations easier.
  • Ergonomic loading station

    Special care was devoted to the manual loading steps of the process, both for small and large machines: to minimize effort on the backbone, the loading/unloading area was kept as close as possible to operator. There are no machines of the same class available on the market where this distance is so small.
  • Reliability

    Light curtains are fitted as a standard to ensure maximum operator safety, further to decreasing the total cycle time of each welding. Light curtains are integrated to protect them against collisions and as a result of an extremely accurate and well defined design.
  • Energy saving technology

    Big welding area and low power required: this is energetic efficiency!
  • Innovative operator interface system

    Accurate does not mean complicated: no other machine on the market is so "user friendly".
    We have made a big effort in designing our video graphic to simplify any operation. Actually, there would be no need for operator's training.
    • Switching to your language is as simple as pressing a key.
    • Parameters can be set to include up to 8 different welding steps.
    • Tool movement graphic programming: no need to call us for a new tool!
    • Monitoring of the "just in time" process by displaying welding diagrams.
    • Constantly linked to CEMAS through the Teleservice system for diagnostics and customer's service on line.
  • Applications

    No limits in customization

    The ultrasonic welding machines must always be designed and "shaped" based on the material and the geometric characteristics of the components that have to be welded.
    However, there are some machines which, except for certain minor changes, may be considered as a standard.
    Mercedes, Volkswagen and FCA, three of the most important world automotive brands, have relied on CEMAS ultrasonic welding machines to join some of their products.

The ultrasonic welding technology

Ultrasonic is a type of "spot welding", the evolution of screwing technology, suitable for those components which don't need for simultaneous welding joining of the entire welding path.

How does it work

The ultrasonic welding process is based on the conversion of friction and vibration energy into heat. Using a welding tool called "sonotrode", the high-frequency ultrasonic acoustic vibrations are transferred to the components. These vibrations are generated by the ultrasonic system, which sends an alternating current. The ultrasonic energy melts the contact point between the two parts, creating a joint.