The world largest bucket-wheel excavator

The world’s largest bucket-wheel excavator is the Bagger 293, a colossal machine built by the German company TAKRAF in 1995. It measures 225 meters (738 feet) in length and 96 meters (315 feet) in height, making it not only the largest bucket-wheel excavator but also the largest land vehicle ever constructed according to the Guinness World Records. The Bagger 293 weighs approximately 14,200 tons (31 million pounds) and has a bucket wheel with a diameter of 21.6 meters (70 feet), featuring 18 buckets that can hold a total of 118 cubic meters of material.

Key Specifications of Bagger 293

Feature	Specification
Length	225 m (738 ft)
Height	96 m (315 ft)
Weight	14,200 tons (31 million lbs)
Bucket Wheel Diameter	21.6 m (70 ft)
Number of Buckets	18
Capacity	Up to 240,000 cubic meters per day

The Bagger 293 is primarily used for lignite coal mining in Germany and has the capacity to move an astonishing 240,000 cubic meters of material each day, which is equivalent to the workload of about 40,000 laborers or over 10,000 dump truck loads. Its operation requires only a small crew, typically consisting of just two operators, due to its advanced automation and control systems.

Comparison with Other Large Excavators

While the Bagger 293 holds the title for the largest, it is often compared with its predecessor, the Bagger 288, which was built in 1978 and weighs about 13,500 tons. The Bagger 288 measures slightly shorter at 220 meters in length but has similar height and operational capabilities.

Both machines exemplify engineering excellence and are critical in large-scale mining operations, particularly in environments where massive amounts of earth need to be moved efficiently.