Photo of the autogenous mill at the Aurubis plant

Autogenous Mill No. 2. Photo: Aurubis Bulgaria AD

In this case study from Bulgarian copper producer Aurubis, the SPM HD shock pulse technology is used to monitor the pinion shaft bearings of a production-critical autogenous mill in the flotation plant.

The Intellinova Compact online system showed rising shock pulse levels right from the start, indicating an outer race damage. The precision of the SPM HD measurements enabled Aurubis to stay on top of the development of this bearing damage over the following eighteen months and to plan for the bearing replacement at a suitable time. After the bearing was dismounted, the damage was confirmed, as can be seen from the photographs.