Top 3 Biggest Excavators

In the modern construction industry today in 2017, it is common for buyers to purchase used excavators as an alternative to buying new machinery. With plenty of excavators for sale on the market, most dealers would offer used models. On average, an excavator can start up to $100,000 – but will usually sell for $75,000. However, there are real perks into buying a new model. The technology is much more advanced in the newer models, there are fewer risks involved as well as warranty protection.
Here are the top biggest models available in the market according to Construction Junkie.

#3 NASA Crawler-Transporter

The 50 year old crawler transporter are actually being modified in 2015 to assist in the launching of the space shuttle that will take us to Mars. These massive 131 feet long and 114 feet wide weigh in at greater than 6 million pounds and carry NASA rockets from site to site…at 1 mph.  One of the two crawlers in existence has traveled 2,207 miles in its lifetime, which, if my math is correct, took 2,207 hours.

#2 TBM (Tunnel Boring Machine)

The title of world’s largest tunnel boring machine is actually held by “Big Bertha,” which is 57 feet in diameter.  It was specifically built to dig underneath the city of Seattle, Washington for a 2 mile roadway, but broke down in the middle of the project.  It’s estimated that it will take another 2-3 years to make the necessary repairs.

#1 Bagger 293 Bucket Wheel Excavator

The Bagger 293 is not only the largest excavator, but also holds the record for the largest land vehicle in the history of the world. At 310 feet tall and 721 feet long, the 4 year old German machine can move 100,000 cubic yards of dirt per day with the use of its 20 rotating buckets

Article fully sourced from: http://www.constructionjunkie.com/blog/2015/8/16/the-10-largest-construction-machines-in-the-world