Rotary solenoids are actuators that convert electrical energy into mechanical motion via rotary motion at a defined angle and torque. They exist in the functional modes monostable and bistable. Rotary solenoids are characterized by their short switching times and high holding torque, which makes them particularly energy-efficient. They are frequently used in automation technology to generate precise movements. In medical technology, rotary solenoids are also important in surgical instruments or dosing systems. In the automotive industry, they are used to open and close valves and control locks.