103H8223-6340 Sanyo Denki
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The Sanyo Denki 103H8223-6340 is a stepping motor in the StepSyn Stepping Motors series. This model features a basic step angle of 1.8 degrees, a holding torque of 7.44 N·m, and a rated current of 6 Amps per phase. With a motor mass of 3.5 kg and a protection rating of IP43, it uses a lead wire connection type and has a bipolar winding configuration.
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Product Description:
The 103H8223-6340 stepping motor is manufactured by Sanyo Denki as part of the StepSyn Stepping Motors series. This two-phase device accepts pulse and direction signals and converts them into discrete shaft movement for indexing tables, feeders, and small gantry axes. By delivering open-loop positioning accuracy without an encoder, it simplifies the control architecture in automation cells and supports applications that need medium torque with fine angular resolution. Its operating principle allows repeatable incremental motion when it is paired with a suitable stepper drive and correctly sized power supply.
Its basic step increment is 1.8°, giving 200 full steps per revolution and providing a straightforward scale for microstepping. A static holding torque of 7.44 N·m lets the shaft resist process loads while energized. Drive electronics must supply 6 A per phase; this rated current matches the copper cross section and thermal limits of the stator windings. Dynamic response is aided by a rotor inertia of 4.4 × 10⁻⁴ kg·m², balancing acceleration capability with overshoot control. Copper losses are influenced by a winding resistance of 0.45 Ω per phase. The bipolar winding layout supports full-step, half-step, and microstep drive modes through a simple four-lead connection.
A flange diameter of 86 mm conforms to common NEMA 34 brackets, and the overall body length of 125.9 mm keeps rear clearance requirements predictable in confined installations. At 3.5 kg, the assembly damps vibration while remaining suitable for lightweight axis designs. The housing has a protection level of IP43, providing protection against solid objects larger than 1 mm and water sprayed at an angle. Power phases exit through a lead-wire harness that uses UL1430 AWG18 conductors, and the lead-wire connection permits direct termination. A 4 × 4 × 25 mm key secures compatible couplings to the shaft. The per-phase inductance is 3.4 mH, which combines with the winding resistance to establish the electrical time constant that the drive must accommodate.
