About Excavators

The excavator began in 1835 when William Otis invented the steam shovel—a massive, cable-operated machine designed to speed up railway construction. For over a century, heavy excavators relied on complex systems of steel cables, clutches, and winches. The industry underwent a massive transformation in the late 1940s and 1950s with the advent of high-pressure fluid power. European manufacturers like Poclain and Yumbo developed the first fully hydraulic excavators capable of 360-degree continuous upper-structure rotation, replacing cumbersome cables with precise hydraulic cylinders.

As hydraulic technology matured, manufacturers scaled machines both up and down to meet diverse jobsite needs. In 1968, Japanese pioneer Yanmar created the first mini excavator to navigate tight urban environments, later introducing Zero Tail Swing (ZTS) technology in 1993 so machines could rotate without hitting adjacent walls. Today, the excavator family spans from sub-1-ton micro units to 1,000-ton mining monsters, equipped with GPS 3D grade control, electro-hydraulic joysticks, and electric zero-emission powertrains.