An actuating apparatus having a first actuating unit and a second actuating unit arranged adjacent to the first actuating unit. The actuating units each have elongated tubular coil bodies, actuator coils which are wound around the coil bodies, electromagnetically actuatable actuators which are guided in the coil bodies and are movable relative to the actuator coils, and the coil bodies are D-shaped and face one another with the flattened sides thereof.