Caterpillar said the hard rock shearer uses Cat Activated Undercutting Technology. The 41-metric ton (mt) HRM220-based system features two cutting heads. Each of the units is powered by a 132-kilowatt (kW) (177-hp) motor and can cut rock exceeding 120 megapascal (MPa) (17,404 psi) uniaxial compressive strength. Electronic modules enable remote operation and diagnosis.

The HRC30 conveyor has a haulage capacity of 160 mt (176 tons) per hour, uses high-strength steel, and can be configured to suit different face lengths up to 100 meters (m) (328 ft).

The HRS1220 roof support features a working range of 1,060-2,155 mm (41.7- 84.8 in.) with a yield load of as much as 2,599 kiloNewton (kN) (377 psi).

The mining system is designed to replace conventional drill-and-blast operations in low heights, ranging from 1.3-2 m (4.2-6.6 ft) and in bedded deposits such as some types of platinum, copper and gold deposits, the company reported. The diesel emissions-free system can follow the seam and maximize ore mined while keeping dilution to a minimum.
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