Solenoid actuator

The invention provides a solenoid actuator capable of reducing manufacturing cost and suppressing thrust reduction after a stroke. A solenoid actuator is provided with: a coil; a first stator and a second stator which are arranged with an air gap therebetween in the axial direction so as to form a magnetic circuit around the coil; and a mover configured so as to be capable of moving in the axial direction from an original position on the inside in the radial direction of the first stator toward the second stator to a maximum stroke position by a magnetic force generated by energizing the coil. The mover has an annular protrusion protruding in the axial direction from the peripheral edge of the mover. The second stator includes: a second yoke; and a second press member that is formed of a magnetic body and is provided on the inner peripheral side of the second yoke so as to at least partially form an annular recess for receiving the annular protrusion of the mover at the maximum stroke position. 本发明提供能够兼顾降低制造成