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    L&M Radiator MESABI MTMS: thermal design implications for next‑gen mine fleets

    January 14, 2026|

    Reviewed by Tom Sullivan

    L&M Radiator MESABI MTMS: thermal design implications for next‑gen mine fleets

    First reported on International Mining – News

    30 Second Briefing

    L&M Radiator’s MESABI® Thermal Management System (MTMS), announced in October 2025, targets heat control for heavy-duty mobile mining equipment using electrified and low-emission powertrains in extreme climates. The modular system is designed for high-vibration, high-dust environments typical of large haul trucks and loaders, integrating engine, battery and power electronics cooling into a single rugged package. For mine operators planning next-generation fleets, MTMS points to tighter thermal envelopes and higher heat rejection demands that will drive radiator sizing, packaging and maintenance strategies.

    Technical Brief

    • MTMS uses MESABI® individual replaceable cooling tubes, allowing damaged tubes to be swapped in situ.
    • System is configured as a single integrated cooling “skid” to simplify mounting on large mobile chassis.
    • L&M Radiator emphasises high-resistance core supports and frames to tolerate continuous haul-truck vibration and shock loading.
    • Cooling surfaces are arranged for easy access from deck level, targeting reduced downtime for cleaning and fin straightening.
    • Design focuses on wide fin spacing and robust guards to limit fouling in high-dust loading and dumping areas.
    • MTMS is intended to be OEM-agnostic, enabling retrofit onto mixed fleets with differing engine and driveline suppliers.
    • Package architecture anticipates future hybrid and hydrogen-fuelled drivetrains, allowing additional heat exchangers to be added modularly.
    • For mine planners, such integrated skids influence truck deck layout, centre-of-gravity management and maintenance bay clearances.

    Our Take

    Product-focused pieces like this one on L&M Radiator are a small subset of the 593 Mining stories in our database, signalling that OEM-side thermal management innovations are still relatively under-reported compared with project finance and M&A.

    Next-generation fleet cooling solutions tend to become de facto standards once adopted by one or two major haul truck platforms, so an October 2025 launch positions L&M Radiator to influence specification choices on upcoming autonomous and trolley-assist truck orders.

    For mine operators, thermal management upgrades are increasingly evaluated alongside energy efficiency and decarbonisation measures; in our coverage, similar product stories are often linked to enabling higher ambient-temperature operation and longer duty cycles rather than just component protection.

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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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