working principle of hydraulic unit in coal mill
Gebr. Pfeiffer SE : The new PFEIFFER roller mill MVR: reliable Operating experience with the Pfeiffer MVR vertical roller mill and the MultiDrive#174; The MPS roller mill has been in use since the 1950s in the raw material and coal...units, incorporates the same actively redundant design principle as the mill''s the roller arm, the bearing stand and the hydraulic force transmission unit.