A support supports at least one side surface of {HEAD ~ the sonotrode} and guides {TAIL ~ the sonotrode} in the longitudinal direction thereof 
A support supports at least one side surface of { HEAD ~ the sonotrode } and guides { TAIL ~ the sonotrode } in the longitudinal direction thereof
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH