The present application discloses an axial operator that is configured for use with a door assembly. The axial operator comprises a rotatable operator output member that rotates about an operator axis, the operator output member being constructed and arranged to be operatively connected within the door assembly such that the operator output axis extends generally vertically. An electric motor has a rotatable motor output member that rotates about the operator axis. The motor is constructed and arranged to selectively rotate the motor output member about the operator axis. A reduction transmission is connected between the motor output member and the operator output member. The reduction transmission is constructed and arranged such that the transmission rotates the operator output member at a lower rotational speed than a rotational speed at which the motor rotates the motor output member and applies a higher torque to the operator output member than a torque which the motor applies to the motor output member. The reduction transmission comprises (a) an orbit gear, (b) a planet gear carrier, and (c) a planet gear. The motor is adapted to be communicated to a controller so as to receive a door moving signal therefrom and being further adapted to selectively rotate the motor output member in response to receiving the door moving signal to thereby rotate the operator output member so as to move the door panel with respect to the doorway as aforesaid.