High Tech for Hard Hats

Grade control for dozers done with position sensors on both sides of the blade. (Picture courtesy of Trimble.)

A Caterpillar dozer can weigh up to100 tons of steel, powered by over 800 horsepower behind a 12-foot wide blade. It moves dirt—tons of it—literally leveling hills, making roadways, sites for campuses, skyscrapers. Armored dozers have been used in war, destroying berms that were made to guard against the U.S. invasion of Iraq in 2003. Nothing in their way stood a chance. …
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