What is the worlds biggest land machine?

Answer 1

She's called Big Muskie... and she's retired and was the world's largest mobile earth-moving machine, weighing nearly 13,000 metric tons and standing nearly 22 stories tall. It operated in the U.S. state of Ohio from 1969 to 1991, and was powered by 13,800 volts of electricity.

See the Web Links to the left for more information about Big Muskie.

Even BIGGER MachineIts called the Krupp Bagger. It is a German Trenching machine and weighs in at somewhere in the region of 150,000 (One hundred and fifty thousand) metric tons. It is part of a family of similar machines which were all built in Germany. Its the biggest machine ever built anywhere on the planet, AND it is self propelled. The main chassis sits on top of no less than 8 (Eight) caterpillar tracks, each of which is about half the size of Americas space-shuttle-launching-vehicle (known as the crawler). If you look it up on the net you may find news articles regarding an "accident" in which the Bagger "ate" a 60ton bulldozer! There are some photos of the "accident" available from various news sites. AnswerThe Large Hadron Collider. It sits in a donut tunnel 27 km long and 3.8m across.