THE MINING INTERVIEW
Operators can identify that constraint through asset criticality reviews, operating-data analysis and condition monitoring. The aim is to distinguish between available capacity and apparent capacity. If vibration, cavitation, misalignment or seal-chamber conditions are already deteriorating, simply increasing speed or flow will accelerate wear and raise failure risk. Targeted changes can then be made, such as selecting a slurry seal and face materials suited to the revised duty, improving the seal environment, correcting alignment or upgrading a coupling. This allows the asset to operate more consistently within safe limits. In practice, sustainable throughput comes from removing reliability bottlenecks, not from running equipment harder and accepting shorter maintenance intervals.
Many sites remain stuck in a loop of repeatedly swapping failing seals or packings. How do you help engineers break the cycle of reactive maintenance and fix root causes? A failed seal is often evidence of a wider problem rather than the original cause. Replacing it like-forlike may restart the pump, but it does not address issues such as dry running, pressure fluctuation, abrasive solids entering the seal chamber, shaft movement, misalignment, cavitation or an unsuitable water supply. The same failure therefore returns.
We begin by combining the physical evidence from the failed component with the asset’ s operating and maintenance history. That can include failure-mode inspection, process conditions, vibration and temperature trends, flush pressure and flow, installation practices and changes in duty. We then test the likely causes and agree corrective actions with the site team.
Those actions might involve changing the seal design or face material, improving the support arrangement, correcting equipment condition or revising operating and maintenance practices. Just as importantly, the outcome should be recorded and measured through indicators such as mean time between repair, leakage, water use and maintenance hours.
26 October 2026