An excavator is a heavy construction machine consisting of a boom, arm, bucket, and cab mounted on a rotating platform (house) above an undercarriage with either tracks or wheels. It is widely used for digging trenches, foundations, and holes, as well as for material handling, demolition, grading, and lifting. With its 360-degree swing capability and powerful hydraulic system, the excavator is one of the most versatile and essential machines on construction sites, mining operations, and forestry projects.