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    Metso’s three new primary crushers: selection and safety notes for mine planners

    June 4, 2026|

    Reviewed by Tom Sullivan

    First reported on International Mining – News

    30 Second Briefing

    Metso has launched three new primary crushers – the Primarok™ gyratory, Optirok™ jaw and Durarok™ sizer – targeting high-capacity, modern mining plants. The range combines large primary throughput with designs aimed at safer maintenance, such as improved access to wear parts and reduced need for manual intervention around the crushing chamber. For mine planners and plant engineers, the trio broadens options for matching crusher type to ore characteristics and downstream circuit design without changing supplier.

    Technical Brief

    • Primarok™ gyratory is configured for large, fixed primary stations in high-tonnage hard-rock mines.
    • Optirok™ jaw is targeted at operations preferring simpler kinematics and easier chamber access.
    • Durarok™ sizer focuses on softer ores or coal-type materials where minimising fines generation is critical.
    • Metso emphasises engineered access to liners and wear parts to keep personnel outside the nip zone.
    • Design intent is to shift routine maintenance towards crane-handled modules rather than manual handling near the shell.
    • Common parts philosophy across the three machines reduces the variety of spares and associated handling risks.
    • Integration with Metso digital tools is aimed at condition monitoring to avoid unplanned, high-risk shutdown interventions.
    • For mine safety management systems, the range supports ALARP-based justification of reduced exposure during crusher maintenance.

    Our Take

    Metso’s new primary crushers sit alongside a visible build‑out of its crushing ecosystem, with the €60 million Lokomotion technology centre expansion in Tampere signalling long‑term commitment to in‑house R&D and manufacturing rather than outsourcing key components.

    Recent coverage of Metso in Mesa, Arizona shows the OEM pairing new equipment launches with expanded service and training capacity, which suggests these crushers are likely to be backed by stronger lifecycle support and operator‑safety training packages than earlier generations.

    Across our mining database, Metso’s activity ranges from lithium conversion flowsheets to gold grinding mills, so adding new primary crushers reinforces its strategy to control more of the comminution chain from pit to plant, which can simplify integration and procurement for project developers.

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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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