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    FAMUR R-150 roadheader for calcite: gearbox and pick lessons for mine engineers

    July 2, 2026|

    Reviewed by Joe Ashwell

    First reported on International Mining – News

    30 Second Briefing

    FAMUR has adapted its R-150 roadheader for underground calcite mining in Italy, testing two cutting head gearbox variants, the FRG132 and higher-torque FRG160B, alongside multiple cutting pick configurations. The trials, conducted for calcium carbonate operations, focused on matching cutting power and pick design to relatively low-strength but abrasive calcite seams and associated host rock. Outcomes will influence gearbox selection, pick layout and wear-part strategy for European industrial mineral mines seeking mechanised excavation in narrower headings.

    Technical Brief

    • Multiple pick types were trialled to balance penetration in soft rock against accelerated wear from abrasiveness.
    • Outcomes are expected to influence mechanised excavation adoption in smaller-profile, non-coal underground operations.

    Our Take

    With activity spanning Poland and Italy, FAMUR and parent Grenevia SA are positioning their roadheader line in EU jurisdictions where stricter environmental and vibration limits often make mechanical cutting more attractive than blasting for industrial minerals.

    For operators in underground calcite and other soft-rock calcium carbonate deposits, a customised R-150-style roadheader could lower dilution and improve wall stability, which in turn tends to support tighter grade control and reduced downstream processing costs.

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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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