I took a trip to Texas this week to document the largest rock cutting machines ever built. Texas is home to the largest concentration of giant trenchers, road miners and rock cutting surface miners in the world. Geology plays a role in this, in particular around San Antonio and Austin. This is home to some of the largest rock excavation companies in the world and the equipment they use all over the southwest and other areas.
The Trencor 1860HD is the largest rock trencher ever built. Only 9 such machines exist, with six in Texas now. I was able to see the last unit built in operation near Breckenridge Texas trenching for a huge water supply project. This unit was cutting solid limestone 7 feet wide and 10 feet deep. The machine has a 1,250 hp Cat 3512 to power the digging chain and a 3306 to power the hydraulic system. It weighs about 220 tons. The power and size is incredible to see first hand.
It takes FOUR D-8 track chains to handle the digging
The Trencor 1860HD is the largest rock trencher ever built. Only 9 such machines exist, with six in Texas now. I was able to see the last unit built in operation near Breckenridge Texas trenching for a huge water supply project. This unit was cutting solid limestone 7 feet wide and 10 feet deep. The machine has a 1,250 hp Cat 3512 to power the digging chain and a 3306 to power the hydraulic system. It weighs about 220 tons. The power and size is incredible to see first hand.
It takes FOUR D-8 track chains to handle the digging
With the Giant Rock Cutters Of Texas....
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