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    Thiess Liebherr R 9600 record at Mount Pleasant: productivity benchmarks for mine planners

    July 6, 2026|

    Reviewed by Joe Ashwell

    Thiess Liebherr R 9600 record at Mount Pleasant: productivity benchmarks for mine planners

    First reported on International Mining – News

    30 Second Briefing

    Thiess has set a claimed world record for a Liebherr R 9600 excavator at MACH Energy’s Mount Pleasant Operation in the Hunter Valley, moving 17 million bank cubic metres in 6,840 operating hours over 12 months. The performance equates to roughly 2,485 bank cubic metres per operating hour, signalling sustained high mechanical availability and consistent truck–shovel match on a single ultra-class hydraulic excavator. For mine planners and maintenance teams, the figures provide a real-world productivity benchmark for R 9600 fleets in large overburden and coal operations.

    Technical Brief

    • Record builds on a prior single-month production peak by the same R 9600 unit.
    • Machine operated at MACH Energy’s Mount Pleasant open-cut coal operation in New South Wales’ Hunter Valley.
    • High-hour utilisation over 12 months implies tightly managed planned maintenance and minimal unscheduled downtime.
    • Consistent dig conditions at Mount Pleasant likely enabled sustained high bucket fill and cycle efficiency.
    • Data from this campaign provides a field benchmark for future R 9600 fleet sizing and shift-structure design.

    Our Take

    Across recent coverage, Thiess and Liebherr appear repeatedly together – from R 9800 deployment at Lake Vermont to PR 776 dozers at Duketon – signalling a deepening OEM–contractor relationship that likely gives Thiess leverage on fleet standardisation and maintenance strategies at Australian sites such as Mount Pleasant Operation.

    The 17 million bank cubic metres moved in 12 months at Mount Pleasant Operation positions Thiess at the high end of productivity benchmarks in our mining database, which can strengthen its case when bidding for new Australian contracts like Emerald Resources’ Dingo Range Gold Project where MACA Mining, a Thiess Group company, has been named preferred contractor.

    Thiess’ string of recent wins and equipment milestones in Australia, combined with CIMIC Group’s move to regain 100% ownership of Thiess Group, suggests CIMIC is banking on high-productivity assets such as the Liebherr R 9600 to underpin value growth in its mining services portfolio.

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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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