Heavy construction equipment uses high-output diesel engines or modern low-emissions engines to maintain consistent and reliable performance during long-term usage (operating) in hazardous conditions. The advanced hydraulic system allows for smooth and accurate control over an operator's movements and for the application of a powerful digging/lifting force.
Heavy construction equipment is extensively used to construct, develop, and maintain highways, bridges, tunnels, ports, mines, and manufacturing facilities. It is due to the unique combination of increased power + reliability + workforce/productivity that heavy construction equipment is indispensable for large-scale construction and development projects.