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