L&M Radiator MESABI MTMS: thermal design implications for next‑gen mine fleets
Reviewed by Tom Sullivan
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.
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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