The machine saw at Bogatyr coal mine near Ekibastuz city, Kazakhstan is considered the world's largest sawmill.
The saw weighs 45,000 tons and the saw blade is the size of a four-storey building.
This saw can exploit more than 4,500 tons of coal per hour.
This saw can even cut a coal mountain.
It took 27 miners to operate the giant saw.
The diameter of the saw blade is up to 12m.
Photographer Alexander Popov saw the huge saw and he was amazed.
