Professional pile foundation installation requires a tool that is highly reliable, generates sufficient force to drive the pile into any soil, and is also compact, easily transportable, and self-contained. A helical pile driver perfectly meets these requirements. It consists of a hydraulic gearbox with a removable stop that directly rotates the pile, and a mobile hydraulic unit connected to the gearbox via flexible hoses. The gearbox is mounted on the pile using an adapter of the appropriate diameter. A stop rod is connected to it, preventing the mechanism from rotating around its axis. Typically, a starter pile is driven in slightly to the side first, which is used as a stop during installation of the first pile in the pile field. Next, adjacent already driven piles are used as stops, for which a special attachment is placed on them (it is visible in the video, and supports the rod). A gasoline-powered hydraulic unit pumps hydraulic fluid through the hoses, transmitting force fro...