Predictive Maintenance and Haul Truck Reliability in Open-Pit Mining
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Predictive maintenance in mining as variability management

Prediction creates value when the production system becomes less surprised by the asset. Predictive maintenance is really variability management.
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Imagine a haul truck that is still working normally, but whose condition data suggests that an important component is beginning to degrade.
WHY THIS "MAINTENANCE VARIABILITY" CHALLENGE?
Production still sees capacity. Maintenance sees risk. In a reactive operation, that risk stays inside maintenance until the asset stops.

Then the mine inherits the consequence all at once: one less truck, an urgent repair, and a dispatch plan that suddenly has to work with less capacity.

Key benefits
What predictive maintenance protects beyond emergency work

Predictive maintenance is not simply about reducing emergency work. It can protect the stability of the operating plan.

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Asset condition translated into production exposure

An emerging asset condition is translated into production exposure early enough for maintenance, dispatch and planning to prepare.

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Maintenance can prepare before capacity disappears

Maintenance can prepare work, components and labor before capacity disappears, converting an abrupt loss into a planned constraint.

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Scarce mobile capacity is allocated deliberately in time

Production can decide where scarce mobile capacity should go rather than discovering the constraint after the failure has happened.

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Variability is made visible, bounded and manageable

Mining will always have variability. The benefit is making more of it visible, bounded and manageable before it propagates.

How NTT DATA helps

01
Detect the emerging asset condition

Use condition monitoring, historian data, anomaly detection or asset-health models to identify meaningful degradation while equipment still operates.

Reliability engineer inspecting a haul truck drivetrain sensor
02
Translate asset risk into exposure

Connect the truck’s condition to fleet availability, haulage commitments, ore and waste movement, shift priorities and available redundancy.

Mine Planners Connecting Haul Truck Risk to Fleet Capacity
03
Make the remaining options explicit

Compare continuing operation, rotating the asset, changing allocation, preparing a substitute or advancing maintenance, with consequences visible.

Mine planners comparing haul routes on a physical pit model
04
Synchronize the intervention

Bring the production window together with workshop capacity, labor, component availability and execution before the asset forces the timing.

Prepared Final-Drive Replacement in an Open-Pit Mine Workshop
05
Orchestrate the response across systems

Connect asset-health signals with fleet, planning, maintenance and inventory workflows so insight becomes coordinated action, not another alert.

Coordinated Fleet, Parts and Maintenance Activity at a Mine Service Hub
06
Learn from what actually happened

Compare the predicted condition, the decision taken, the maintenance finding and the production consequence to improve model and response.

Engineers measuring drivetrain wear during teardown analysis
Planned Haul Truck Intervention with Production Still Moving
Proven impact
An early warning is useful when it gives time to prepare for a capacity loss before it is abrupt

The proof is not prediction accuracy alone. It is whether the warning reduced surprise: work prepared, capacity reallocated, constraints anticipated and the plan adjusted while alternatives existed.

Results that matter
Resilience means absorbing asset problems without crisis

A mine does not become more reliable simply because it can predict more failures. It becomes more resilient.

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Emerging asset problems no longer become new crises

The mine can absorb emerging asset problems without letting each one become a new operating crisis for production and dispatch.

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The loss of capacity is made manageable before it arrives

The best prediction does not merely tell the mine what may break. It gives time to make the loss of capacity manageable in advance.

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The ore movement that matters most stays protected

The response can protect the ore movement that matters most while the asset is still available, by changing the sequence of work.

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The production plan adjusts while alternatives still exist

The production plan is adjusted while alternatives still exist, rather than rebuilt after the truck stops and capacity is gone.

Turn asset degradation into managed variability

Explore how predictive maintenance connected to fleet and planning can protect the stability of your mining operating plan.

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