· Colossal earthmoving machines became symbols in the 1960s1970s environmental battles over surface coal mining, also known as "strip mining." These machines – some capable of scooping twotothree Greyhound bussize equivalents of earth with each bite – laid waste to tens of thousands of acres as they uncovered nearsurface coal to feed electric power plants.
· Wirtgen says the only requirement for companies to fully leverage the benefits of the surface mining process is to use intelligent machine solutions. "The 220 SM is one such solution that has demonstrated its exceptional value at mines around the world, including the Bhubaneswari coal mine. This powerhouse with an operating weight of 58 t is propelled by a robust Cummins diesel .