A device for acting on a material web using ultrasonic includes an ultrasonic unit which has a converter a booster and {HEAD ~ a sonotrode}, and {TAIL ~ a counter tool} 
A device for acting on a material web using ultrasonic includes an ultrasonic unit which has a converter a booster and { HEAD ~ a sonotrode } , and { TAIL ~ a counter tool }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL