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