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The news of CERA ENGINEERING

Continuous ultrasonic welding expertise

November 14, 2017

Ultrasound welding machine
At Cera Engineering, continuous ultrasonic welding can follow two models:

Continuous ultrasonic welding with rotating sonotrode and wheel
In this case, the sonotrode is made of steel or titanium, and has a tulip shape (what enables to work on a 8 to 12mm width) or is a “double bearing” one (what enables to work on a 45mm width). The latter type of sonotrode makes the process more rigid, more solid and strictly parallel.
Opposite to the active face of the sonotrode, an avril turns by 0 to 45mm width.

Here, the drum and the sonotrode are turning in the same direction as the product is unrolled.

This first type of continuous ultrasonic welding is used on our ultrasonic sewing machines (Rotosonic and Cera Ultrasonic), on our machines to manufacture leg cuffs, to manufacture bouffant caps or to manufacture masks. These machines can reach a 350m/min production capacity.


Continuous ultrasonic welding with a fix sonotrode and a turning drum
In this case, a fix sonotrode faces the drum, with a 20 kHz frequency. In some applications four sonotrodes are facing the drum, so as to work on 0 to 800mm widths.

Here, the drum turns while the sonotrode is fixed.

This second type of continuous ultrasonic welding is used on our special machines and on our machines to manufacture gloves, which can reach an 80m/min production capacity.
 
You want to know more about continuous ultrasonic welding? Check out our new website and start designing your own machine online.
http://www.cera-groupecera.com/en/
Your new customized machine starts here, with Cera Engineering. 
Continuous ultrasonic welding expertise
Contact the Supplier

Continuous mechanical rotary cutting

October 24, 2017

The continuous mechanical rotary cutting allows you to get a straight cut at high speeds while the fabric is in movement (scissors cutting).

You are interested in this technology? Click on the link below to check out how it is used on our standard machine, or how you could integrate it into your own customized machine.

http://www.cera-groupecera.com/en/custom/

Your new customized machine starts here, with Cera Engineering. 
Continuous mechanical rotary cutting
Contact the Supplier

Ultrasonic welding

September 27, 2017

What is ultrasonic welding?

How does ultrasonic welding work?
First, an ultrasonic generator produces an electric current with an approximate tension of 1000V, a frequency of 20, 30, 35 or 40 kHz, and a 1A intensity.

Then, the generator delivers the electric current through an ultrasonic cable until a ceramic made converter. The ceramics vibrate at the chosen frequency (20, 30, 35 or 40 kHz) and generate a few microns amplitude.

The converter then generates positive and negative vibrations and transforms the electric current into mechanic energy.
Afterwards, a sonotrode in steel or titanium which is connected to the mechanic association vibrates at the imposed amplitude. For instance:
- For 20 kHz, the sonotrode generates a 20 to 25 microns amplitude
- For 30 kHz, a 15 to 16 microns amplitude
- For 40 kHz, an 8 microns amplitude

The active face of the sonotrode realizes a hammering while an anvil faces it (or a drum for rotary ultrasonic). The product then passes between the anvil and the active face of the sonotrode, rises in temperature and melts, what generates cut or welding according to the machine.

Are there multiple types of ultrasonic welding?
At Cera Engineering, ultrasonic welding can be two types:
- Static welding (intermittence welding)
- Continuous welding (rotary welding)

You want to learn more about this technology? Please check out our new website: http://www.cera-groupecera.com/en/
Ultrasonic welding
Contact the Supplier

Machine to produce single-use nonwoven gloves - Up to 48,000 gloves per hour

April 11, 2017

Disposable gloves
When designing our new gloves machine, our goal was to provide a machine with the highest performance in assembling gloves thanks to our know-how in installing sonics into production machines.

Producing up to 48,000 pieces per hour through a 60 meters per minute line speed, gloves machine allows to manufacture in quantity high quality gloves, certified for medical, hospitals, clinics, nurseries, maternity homes, retirement homes…

These gloves are generally used for body wash (Non-woven, Single use).

Through its new design and high technology, the gloves machine automatically assembles gloves in four operations, and controls production parameters to assure the highest reliability of bouffant caps.

While working with our gloves machine, take all the advantages of fully automatic process in terms of performance and reliability. 
Machine to produce single-use nonwoven gloves - Up to 48,000 gloves per hour
Contact the Supplier

What is ultrasonic welding?

April 06, 2017

Ultrasound welding machine
How does ultrasonic welding work? First, an ultrasonic generator produces an electric current with an approximate tension of 1000V, a frequency of 20, 30, 35 or 40 kHz, and a 1A intensity.

Then, the generator delivers the electric current through an ultrasonic cable until a ceramic made converter. The ceramics vibrate at the chosen frequency (20, 30, 35 or 40 kHz) and generate a few microns amplitude.

The converter then generates positive and negative vibrations and transforms the electric into mechanic energy.
Afterwards, a sonotrode in steel or titanium which is connected to the mechanic association vibrates at the imposed amplitude. For instance:
- For 20 kHz, the sonotrode generates a 20 to 25 microns amplitude
- For 30 kHz, a 15 to 16 microns amplitude
- For 40 kHz, an 8 microns amplitude

The active face of the sonotrode realizes a hammering while an anvil faces it (or a drum for rotary ultrasonic). The product then passes between the anvil and the active face of the sonotrode, rises in temperature and melts, what generates cut or welding according to the machine.
Are there multiple types of ultrasonic welding? At Cera Engineering, ultrasonic welding can be two types:
- Static welding (intermittence welding)
- Continuous welding (rotary welding)

website: http://www.cera-groupecera.com/en/
What is ultrasonic welding?
Contact the Supplier

Bouffant Cap machine, certified for medical, hospital, pharmaceutical or food-processing, cosmetics, electronics …

May 12, 2016

Protective hoods
When designing our new bouffant cap making machine, our goal was to provide a machine with the highest performance in assembling bouffant caps thanks to our know-how in installing sonics into production machines.

Producing up to 12 000 pieces per hour through a 100 meters per minute line speed, our bouffant cap making machine allows to manufacture in quantity high quality bouffant caps, certified for medical, hospital, pharmaceutical or food-processing, cosmetics, electronics …

Through its new design and high technology, the bouffant cap making machine automatically assembles bouffant caps in four operations, and controls production parameters to assure the highest reliability of bouffant caps.

While working with our bouffant cap making machine, take all the advantages of fully automatic process in terms of performance and reliability. 
Bouffant Cap machine, certified for medical, hospital, pharmaceutical or food-processing, cosmetics, electronics …
Contact the Supplier

Cera Engineering, specialist in ultrasonic continuous assembling processes

March 08, 2016

Special machines
Continuous assembling process? No stop of the web during the assembling process.
How can it be integrated? The ultrasonic continuous assembling process is implemented on stand alone machines or can be integrated in any existing machine to replace glue, hot melt, or mechanical gripping.
What about speed? The working speed can vary from 0 to 350 m /min depending on the fabric and type of welding to be reached.
Cera Engineering, specialist in ultrasonic continuous assembling processes
Contact the Supplier
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