"Heavy machinery" redirects here. For other uses, see Heavy machinery (disambiguation).
"Earthmover" redirects here. For the Once Nothing's EP, see Earthmover (EP) .
More information: Equipment
Heavy equipment or heavy machinery refers to heavy-duty vehicles specially designed to carry out construction tasks, often involving earthmoving or other major construction tasks. Heavy equipment generally consists of five equipment systems: application, traction, structure, powertrain, control and information. [one]

The heavy equipment used since at least the 1st century BC, the ancient Roman engineer Vitruvius described a crane in De architectura when powered by human or animal labor.

Heavy equipment functions through the mechanical advantage of a simple machine, the ratio between the input force applied and the applied force multiplied to do tasks that can take hundreds of weeks for people and labor without heavy equipment, much less intense in nature. Some equipment uses hydraulic drives as the primary source of motion.

The term "plant" is used to denote any type of mobile heavy machinery.