Hard Rock Cutting Moves Past Trial Deployments
Disc cutting and undercutting head geometries apply force in a way that fractures rock rather than grinding it, which cuts specific energy enough to make mechanical excavation viable well above the strength limits that confined earlier machines to soft minerals. Several operations are now cutting production headings rather than demonstration drives, and the argument has shifted from whether the rock can be cut to whether the mine plan should be redrawn around it. Removing the blast cycle removes re-entry delay and ventilation surge, which changes development economics more than cutting rate ever does.
Market Impact: India targets 100 million tonnes un








