Excavators (Hydraulic Excavators) are heavy construction equipment consisting of a boom, dipper (or stick), bucket and cab on a rotating platform known as the “house”. The house sits atop an undercarriage with tracks or wheels. They are a natural progression from the steam shovels and often mistakenly called power shovels. All movement and functions of a hydraulic excavator are accomplished through the use of hydraulic fluid, with hydraulic cylinders and hydraulic motors. Due to the linear actuation of hydraulic cylinders, their mode of operation is fundamentally different from cable-operated excavators which uses winches and steel ropes to accomplish the movements.
Excavators have a WIDE variety of uses on the jobsite. They can be very small, or extremely LARGE. They are used to “excavate” or dig ditches, trenches and large areas. Excavators can move large amounts of materials very quickly. They are also used to lift and place large and small objects around the jobsite. With the addition of “quick-connect” attachments, they can be used to sift through rocks and debris, compact dirt and stone, broom off buildings and streets as well as chip and mulch trees and brush.