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    When drill rigs need more than another fix: overhaul strategies for mine planners

    May 27, 2026|

    Reviewed by Joe Ashwell

    When drill rigs need more than another fix: overhaul strategies for mine planners

    First reported on Australian Mining

    30 Second Briefing

    Ageing blast-hole drill rigs on Australian mine sites are being put through structured overhauls by Motion Australia once reactive repairs become uneconomic and reliability drops. The programme uses condition monitoring data, detailed component inspection and controlled workshop execution to rebuild key systems such as rotary heads, feed assemblies and undercarriages rather than relying on ad hoc field fixes. For maintenance planners, the approach shifts spend from frequent unplanned shutdowns to scheduled rebuild intervals, extending rig service life and stabilising drilling availability.

    Technical Brief

    • Workshop strip-downs expose cracking, scoring and misalignment not visible during in-pit maintenance inspections.
    • Components are dimensionally checked against OEM tolerances before reuse, repair, or replacement decisions are made.
    • Critical fasteners, slew bearings and structural welds undergo non-destructive testing to manage fatigue and fracture risk.
    • Hydraulic hoses, fittings and accumulators are replaced on a life-based schedule to reduce burst and injection hazards.
    • Electrical looms and control panels are re-terminated, re-insulated and load-tested to prevent shorts and fire events.
    • Rebuilds are completed in controlled workshops, avoiding elevated work and live-plant interaction typical of field repairs.
    • For other fleets, the approach illustrates how moving intrusive work off-bench can materially reduce exposure hours.

    Our Take

    Motion’s recent push into in-situ machining for Australian mine assets (car dumpers, draglines, large gearboxes) suggests its drill-rig work is part of a broader strategy to reduce downtime by shifting heavy maintenance from workshops to the pit or plant.

    Within our 1181 Mining stories, Motion appears mainly in maintenance and reliability pieces rather than commodity-led project news, signalling that its role in Australia is emerging as a specialist service provider influencing safety and availability across multiple mine operators rather than tied to a single asset or resource.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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