There is provided an actuator system for moving an object. The actuator system comprises a rotor for supporting the object, and a stator. The rotor comprises a circular magnetic track for generating a magnetic field across a radial air gap. The circular magnetic track is coaxial to an axis extending in an axial direction. The stator comprises a first set of coils and a second set of coils. The first set of coils and the second set of coils are arranged at least partly in the radial air gap. The first set of coils extends axially on both sides beyond the circular magnetic track to generate a tangential electromagnetic force in a direction tangentially to the circular magnetic track to rotate the rotor relative to the stator about the axis. The second set of coils extends axially on only one side beyond the circular magnetic track to generate an axial electromagnetic force in the axial direction to move the rotor relative to the stator in the axial direction.