The primary assets to monitor in the metals and minerals industry are roll stand drives, pumps and fans, mill motors and air compressors. Generally a specific “unit” in these industries is comprised of many individual machines.
For example, a rolling mill will be made up of a large (1500+ horsepower) motor driving through gearboxes to roughing mills, and multiple direct-drive motors turning the rolling table rolls. In just one typical rolling mill, it is possible to have 250 or more ‘bearing points’ including motors, gearboxes, table rolls and roughing mill rolls.
Different steel types have entirely different equipment needs. The above examples pertain to standard carbon-steel production, however in aluminum plants the smelting furnaces rely heavily on vacuum pumps which changes the importance of the technologies applied.