The Sanyo Denki 2 phase stepper motor with single shaft has bipolar winding, provides 1.4Nm holding torque at 2-phase excitation and 4A current rating. Compared to our conventional model, torque performance has improved by approximately 40%. This contributes to shortening the positioning time and machine cycle time. It is used in medical devices, industrial equipment, semiconductor manufacturing equipment, conveying machines, and index table driving.