It is {HEAD ~ a medium width machine} with a grinding drum length of {TAIL ~ approximately 2 meters} 
It is { HEAD ~ a medium width machine } with a grinding drum length of { TAIL ~ approximately 2 meters }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL