Booster Fan Temperature Monitoring System

Booster fan bearing temperature monitoring is a condition monitoring technique used to continuously measure the operating temperature of bearings within underground mine ventilation fans. Bearing temperature is one of the most practical and widely used indicators of bearing health because changes in bearing condition — such as increased friction, inadequate lubrication, contamination or progressive mechanical wear — typically produce measurable increases in operating temperature before other symptoms become externally apparent. A dedicated monitoring system continuously measures bearing temperatures using sensors and provides real-time feedback to operators. When bearing temperatures deviate from established normal operating ranges, the system generates alarms to alert operators and can provide trip indication to support protective intervention. By tracking temperature trends over time, the system supports a condition-based maintenance approach where maintenance actions are planned based on actual equipment condition rather than arbitrary time-based schedules. This helps reduce unplanned downtime, optimise maintenance resources and extend bearing service life while maintaining safe and reliable fan operation.

Bearing temperature is widely recognised as one of the most practical and reliable early indicators of bearing condition in rotating machinery. Changes such as increased friction, lubrication degradation, contamination or progressive mechanical wear typically produce measurable temperature increases before other symptoms become externally apparent. By continuously monitoring bearing temperatures and observing trends over time, developing problems can be identified at an early stage — allowing maintenance to be planned and executed before minor issues escalate into major equipment failures.

Since the original installation and commissioning in 2011, Welkom Winder Services has provided ongoing engineering support for the booster fan temperature monitoring system at Target 3 Shaft. This long-term involvement ensures that the monitoring system continues to operate reliably, remains properly calibrated and continues to provide accurate condition data for maintenance planning. The sustained engineering relationship also allows system performance to be reviewed against historical operating data, supporting continuous improvement in condition monitoring practices.