Once the pole pieces are magnetized, {HEAD ~ no further energy} must be applied to {TAIL ~ the magnet} to operate the separation system 
applied to
Once the pole pieces are magnetized , { HEAD ~ no further energy } must be applied to { TAIL ~ the magnet } to operate the separation system
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH