P&H 4100C Boss
The P&H 4100C Boss could easily be the biggest mechanical excavator on this planet. It is a huge machine that has a nominal payload capacity of 100 tons and an actual payload capacity of up to 400 tones.
Additionally, this machine was specifically designed to operate in mines. With its 3505 mm (138 inch) wide crawler shoes it requires a low ground bearing pressure and offer high diffing forces.
To find out more about it, press Play on the video below and enjoy watching this enormous beast at work.