103H8223-5241 Sanyo Denki
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The Sanyo Denki 103H8223-5241 is a stepping motor from the StepSyn Stepping Motors series with a holding torque of 7.44 Newton-meters and a step angle of 1.8 degrees per step. This 2-phase, bipolar motor features a rated current of 6 Amps per phase and has a mass of 3.5 kilograms. It has a motor length of 125.8 mm and uses UL1430 AWG18 lead wires.
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Product Description:
The 103H8223-5241 is a hybrid stepping motor manufactured by Sanyo Denki for the StepSyn Stepping Motors series. This two-phase device advances in discrete angular increments when its windings are energized by a stepper drive, allowing repeatable open-loop positioning in conveyors, labeling heads, and small pick-and-place modules. By combining a permanent-magnet rotor with laminated stator teeth, the motor produces high detent and holding torque without requiring an encoder. This design simplifies motion axes where space or wiring constraints make closed-loop feedback impractical.
The motor has a step angle of 1.8° per step, which provides 200 full steps per revolution and allows controllers to command fine incremental motion with straightforward pulse trains. A holding torque of 7.44 N·m keeps static loads from slipping when the motor is energized but stationary. The driver electronics must supply up to 6 A per phase, balancing torque output against internal copper losses. The windings have an inductance of 3.4 mH per phase, which limits the rate of current change and influences how quickly current can rise during rapid step sequences. Their resistance is 0.45 Ω per phase, resulting in 16.2 W of heat generation per phase at the rated current, so the installation must provide adequate cooling. A bipolar winding configuration and two-phase layout support either full-step or microstep operation, depending on the drive algorithm.
The motor has an 86 mm circular frame across its mounting face and a stack depth of 125.8 mm, which affect enclosure space and coupling selection. Its rotor inertia is 4.4 × 10⁻⁴ kg·m², permitting moderate acceleration without excessive overshoot, while its overall mass of 3.5 kg affects bracket rigidity and load support. The leads use UL1430 AWG18 conductors and have a minimum length of 305 mm, providing sufficient reach for routing to a nearby drive. The mounting structure should support the motor securely and maintain shaft alignment during repeated acceleration and deceleration cycles.
