CASE CX750D Excavator Provides Both Stone & Revenue For Oconee County In South Carolina

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The CASE CX750D is the largest and most powerful machine in the current CASE excavator lineup. (Photo courtesy of CASE.)

At the Oconee County Quarry in South Carolina, CASE’s CX750D spends its days feeding a mobile crushing plant at the face of the excavation, providing valuable crushed granite for local construction as well as additional revenue to meet the various needs of the South Carolina county.

“Anything from a local resident who wants stone in their driveway, to farmers, and on into commercial developers that are building subdivisions, large pad jobs for industrial work,” explains Thom Moxley, manager, Oconee County Quarry. “A lot of our stone is sold to the local university down here at Clemson, they've done a lot of upgrading over the last few years. It's a wide range of product base for different customers.”

A Ripple Effect

The Oconee County Quarry recently upgraded its crushing plant, moving from a stationary plant to a mobile plant that management could move from time to time across the 100-acre quarry. “Our old crushing plant was producing roughly 384 tons an hour,” says Assistant Manager Billy Buchanan. “Our new crushing plant is crushing over 600 tons an hour.”

This meant the quarry needed a large excavator that could support higher breakout forces and handle larger buckets. Enter the CASE CX750D.

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“We are not out to make every dollar we can make,” says Billy Buchanan, assistant manager, Oconee County Quarry. “Our goal is to provide stone for the county. That's our first goal. Second goal is to sell as much as we can because the more rock we sell, the more we can put back into the general fund and people's taxes are lower because we exist.” (Photo courtesy of CASE.)

Mass Excavation

The CASE CX750D is the largest, most powerful machine in the current CASE excavator lineup. Powered by an Isuzu AQ-6WG1X engine that produces 512 net horsepower (682 kilowatts), the CX750D can produce up to 75,000 foot-pounds (101,686 newton-meters) of bucket digging force. An electronically controlled hydraulic pump and larger control and solenoid valves are onboard to boost breakout force, increase lifting strength, and improve responsiveness. The excavator is available in standard and “mass excavation” configurations; the mass excavation configuration (which was selected by Oconee County Quarry) features a shorter boom and arm that allows for greater breakout force and faster cycle times, and is capable of handling larger buckets for added capacity.

Source: CASE