Articulated Swing Gate Opener An articulated swing gate opener (sometimes called an articulating arm operator) is a type of gate automation mechanism that uses a jointed arm (with a bend or hinge) rather than a straight link or underground drive. This design allows more flexibility in mounting, especially when hinge positions or columns are offset, or there is limited side room. How It Works (Basic Principle) The opener has a motor and gearbox driving an articulated arm assembly (with one or more pivot points). As the motor turns, the arm pushes or pulls the gate leaf, using the joints to accommodate angular motion. Because of the joints, the system can start from a position not directly aligned with the hinge, making it easier to fit in constrained or awkward geometries (e.g. wide columns, setback hinges). The mechanism stops at programmed “open” and “close” endpoints, often via limit switches or encoder feedback.