103H8223-0941 Sanyo Denki
Wake Industrial LLC is not an authorized distributor of this product.
The Sanyo Denki 103H8223-0941 is part of the StepSyn Stepping Motors series and features a frame diameter of 86 mm and a motor length of 125.8 mm. It has a holding torque of 6.27 Newton-meters and a step angle of 1.8 degrees per step. This 2-phase motor has a rated current of 4 Amps per phase and weighs 3.5 kilograms.
Internal Product Review
The 103H8223-0941 is a Sanyo Denki StepSyn stepping motor with 6.27 N·m holding torque and a 1.8° step angle. A 2-phase configuration and unipolar winding support straightforward drive integration and consistent step response. Rated current of 4 A/phase makes the motor a strong choice for precise indexing applications.
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Product Description:
The 103H8223-0941 is a hybrid stepper motor manufactured by Sanyo Denki within the StepSyn Stepping Motors series. In motion-control assemblies, it converts digital pulse trains from a drive into precise angular increments, allowing indexers, pick-and-place heads, and small conveyors to position loads without feedback devices. The motor’s incremental behavior and high detent capability make it suitable for open-loop axes where simplicity and repeatability are required. It operates with a unipolar driver that energizes each phase sequentially, aligning the magnetic rotor with the commanded step sequence.
As delivered, the motor turns 1.8° per step with each command pulse, so 200 full steps complete one revolution and provide predictable incremental travel. At standstill, it resists loads with 6.27 N·m of holding torque while the rated current remains applied. Each stator phase draws 4 A per phase, and the windings have 1.35 Ω per phase of resistance, which affects copper loss and drive sizing. Dynamic current changes are influenced by the coil’s 5.6 mH per phase inductance, which affects current rise times during microstepping. The windings use a unipolar arrangement, so the eight 22 AWG leads connect to half-coil taps that allow the controller to energize the required winding sections. The factory-installed leads extend 305 mm to reach terminal blocks without splicing.
The laminated frame measures 86 mm across its square face and is 125.8 mm long from the mounting surface to the end bell, providing a compact envelope for retrofit installations. A precision pilot measuring 73.025 mm centers the housing in NEMA 34-style brackets, while the 12 mm shaft projects 28 mm to accept couplings or pulleys. Rotor inertia is 4.4 × 10⁻⁴ kg·m², enabling quick acceleration when the motor is driven with appropriately tuned current profiles. The assembly weighs 3.5 kg, so rigid support is recommended to limit vibration during rapid step sequences. Two-phase excitation helps maintain thermal balance across the stator core during continuous operation.
