Ultrasonic sealing solutions, cold seal for the chocolate industry
With experience over the past 5 years, we are now ready to present
our new longitudinal sealing solution based on an innovative ultrasonic
system engineered by Cavanna.
Ultrasonic. An innovative sealing application in the flowpack world
Ultrasonic sealing is an alternative to the longitudinal sealing when
compared to the traditional way presently in use in the flowpack technology.
The ultrasonic transfer is carried out by means of mechanical “micro-pulses”
that insure the maximum efficiency.
The exact amount of energy necessary for the sealing action is in fact
transferred without damaging the film and or the product.
Our longitudinal ultrasonic sealing system

The longitudinal ultrasonic sealing group is perfectly integrated
into the machine.
It is a “cold” group where the sealing energy is mechanical.
The control panel of the wrapping machine handles the wrapping parameters
(pressure, frequency, etc) in a fully automatic way.
The parameters are customized accordingly to the film type, memorized
and recalled when needed.
Several sealing patterns are available to satisfy the aesthetics and
sealing requests.
Naturally the sealing quality and speed (up to 100 packs/minute) are
in direct accordance with the type of film but generally speaking we
can say that this system allows the use of almost all types of flexible
films. Test with different materials supplied by our clients are most
welcomed in our laboratory for final approval
What are the proven advantages?
• No hot longitudinal sealing elements: this guarantees best quality
and safety for your products;
• Waste reduction: because the area is cold, products stopped
in the machine are not damaged and do not have to be blown out at the
recovery.
• Speed up to 100 linear meters/min.
• Maintenance cost reduction: heaters and collectors are replaced
by ultrasonic system
• No noise pollution: the system works well out from the 20.000
Hertz range, which is the human audibility field.
• Particularly suitable for chocolates, frozen food, pharmaceuticals,
etc.
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EZ4 System

Ez4 System is the Cavanna solution to the changing medium level market requirements, reducing pressure on price.
We offer dedicated accessories, with full line capabilities to automatically package bakery products, snack bars, confectionary items, trays of product, and other frozen food products.
EZ4 System is the Cavanna’s, built with 48 years of flowpack technology, platform dedicated to production processes of medium speeds.
Ez4 System benefits
- Performances
- Full range of accessories
- Fast delivery
- Quick installation
- Return on investment
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