Caterpillar has designed, fabricated and constructed the largest hydraulic mining shovel ever built, according to the manufacturer.

The Cat 6120B H FS significantly exceeds the size of the Cat 6090 FS to deliver highly productive three- or four-pass loading of ultra-class mining trucks. Innovative hybrid technologies cut fuel use per ton by an estimated 25 percent — through the use of hydra-electric regenerative technologies and a unique energy storage system.

An operating weight of approximately 1,400 tons (1,270 t) and engine output of about 4,500 hp (3,360 kW) enable the shovel to efficiently handle dipper sizes of 60 to 85 cu. yds. (46 to 65 cu. m), depending on material density.

The energy management system makes use of large capacitors to store energy created by the shovel during swing deceleration and boom-down movements. That stored energy then helps power the hydraulic system when the machine requires peak power, such as during the digging portion of the cycle. The hybrid technology features long-life components and design for ease of service, as do other systems within the shovel. Isolated, modular systems within the 6120B H FS offer easy access and enhanced serviceability.

The new hydraulic shovel will fill the need for a safe, cost-efficient and highly mobile ultra-class shovel for short-term mining operations, non-electrified sites and areas where the power grid has limitations, and greenfield developments, according to the manufacturer.

The hydraulic shovel also has selective digging capabilities that rope shovels do not, as hydraulics enable applying strong bucket forces through a wide range of heights. The Tri Power linkage technology enhances digging capabilities of the 6120B H FS.

The 6120B H FS prototype was constructed at the Caterpillar manufacturing facility in South Milwaukee, Wisc., where, after rigorous testing and field trials, future 6120B shovels will be manufactured to fulfill commercial sales. More information about the 6120B H FS will be announced as development progresses.

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