Product Description:

The 103H7823-1710 is a hybrid stepper motor manufactured by Sanyo Denki for the StepSyn Stepping Motors series. This two-phase unit converts digital pulse trains into incremental rotary motion for positioning tables, pick-and-place heads, and small conveyors in automated machinery. By combining permanent-magnet and variable-reluctance principles, the motor delivers discrete shaft steps without a feedback device. This design allows open-loop control in systems where moderate speed and consistent holding force are required.

The motor mounts to equipment through a square 60 mm flange that supports rigid coupling to gearboxes or brackets. Each full step advances the rotor by 1.8°, so 200 pulses rotate the shaft one revolution and provide predictable resolution for indexing tasks. Drive electronics must supply 4 A per phase, which is the rated winding current required to reach full torque without overheating. The electromagnetic circuit uses 2 phases and bipolar wiring, enabling higher torque density than comparable unipolar arrangements. Under static excitation, the rotor resists external loads with a holding torque of 2.7 N·m, keeping fixtures in place when motion is paused.

Dynamic behavior is influenced by a rotor inertia of 0.84 × 10⁻⁴ kg·m², which helps minimize overshoot while permitting rapid acceleration as the pulse rate increases. The motor has an overall length of 85.8 mm, allowing it to fit inside compact gantry carriages or medical instrument bays. The laminated frame and bearings contribute to a mass of 1.34 kg, allowing direct mounting without additional support in most horizontal installations. A dual-shaft configuration provides a D-shaped output at the front for a coupling and a second shaft stub at the rear for an encoder or hand wheel. The electrical leads terminate in a connector-type plug, avoiding the need to wire loose leads individually during installation.