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    Weir comminution efficiency gains: design and control lessons for mine engineers

    September 9, 2026|

    Reviewed by Tom Sullivan

    First reported on International Mining – News

    30 Second Briefing

    Technology-led optimisation of comminution circuits can deliver immediate, material efficiency gains when applied with tight process control, argues JD Singleton, Comminution Director for EMEA at Weir. Singleton links precision deployment of tools such as high-pressure grinding rolls, advanced process control and real-time ore characterisation to lower specific energy consumption and reduced CO₂ per tonne milled. He stresses that disciplined implementation and continuous performance tracking are essential if mines are to meet carbon targets without escalating unit operating costs.

    Technical Brief

    • JD Singleton positions precision comminution optimisation as a near‑term lever for mines under carbon scrutiny.
    • Singleton stresses that technology alone is insufficient without disciplined operating practice and tight adherence to control limits.
    • He emphasises that incremental circuit improvements can be implemented within existing plant footprints, avoiding major brownfield rebuilds.
    • According to Singleton, mines often underuse installed comminution equipment capability due to conservative operating envelopes.
    • Singleton argues that comminution optimisation should be prioritised ahead of new-build capacity when planning decarbonisation roadmaps.
    • For other operations, his message is that “achievable today” gains reduce risk compared with unproven step‑change technologies.

    Our Take

    The recent piece on Weir’s NEXT Intelligent Solutions platform (11 Aug 2026) shows the company coupling hardware with AI-driven optimisation, so any ‘meaningful gains’ in comminution discussed here are likely to be framed not just as equipment swaps but as data-enabled, plant-wide control strategies for EMEA plants.

    The order for ENDURON HPGRs at Zijin’s Golden Ridge operation in Ghana (7 Sep 2026) indicates that Weir is already commercialising the comminution concepts it promotes in op-eds, giving EMEA clients concrete brownfield case studies rather than purely theoretical sustainability arguments.

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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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