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    MAXAM MS501 50/65R51 launch: tyre life and L5 loader uptime for mine engineers

    July 30, 2026|

    Reviewed by Joe Ashwell

    First reported on International Mining – News

    30 Second Briefing

    MAXAM Tire has added a 50/65R51 size to its MS501 MineXtra range, targeting large wheel loaders in severe L5 mining service where rock abrasion and cut resistance are critical. The new radial is engineered for “the industry’s toughest” loading conditions, extending the existing MS501 family for operations that run high-capacity loaders on aggressive faces and waste dumps. For mine operators, the larger 51-inch fitment offers another option to match tyre life and downtime to high-production loader fleets without changing machine class.

    Technical Brief

    • New 50/65R51 MS501 is built to L5 specification for extreme rock-cut environments.
    • Radial construction targets high-load, low-speed loader duty cycles typical of large open-pit faces.
    • Compound and carcass are optimised for abrasion and cut resistance rather than haul-truck rolling efficiency.
    • Size extension allows mines standardising on MS501 to cover larger loader classes without changing tyre model.
    • Common 51-inch loader rims can be utilised, avoiding wheel change-outs or re-certification of rims.
    • Target applications include aggressive waste dumps and face-loading on highly blocky, sharp rock.
    • Reduced unplanned tyre downtime is aimed at aligning with high-availability loading fleets’ maintenance windows.
    • For similar mining fleets, such L5 radials are typically used where underfoot conditions preclude L3/L4 patterns.

    Our Take

    MAXAM Tire’s earlier addition of the 45/65R45 size in the MS406 line suggests a deliberate push to cover more of the large loader and ultra-class haul truck envelope, giving mines more scope to standardise on a single supplier for critical OTR sizes.

    With International Mining also covering events like the World Mining Congress 2026, MAXAM Tire’s repeated presence in their product pieces indicates the company is positioning itself as a recognised OEM/aftermarket option in front of the same senior decision-makers who shape large fleet procurement strategies.

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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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