103-845-02S0 by Sanyo Denki

The Sanyo Denki 103-845-02S0 stepping motor represents a high-precision solution within the StepSyn Stepping Motors series from Sanyo Denki. Equipped with a 1.8° step angle and a 3V/DC voltage rating, this motor delivers finely controlled motion for demanding applications. It features a robust 2-phase design capable of handling a current of 6.7A, ensuring reliable torque delivery throughout its operational range. Measuring 86mm in diameter and weighing 4.38kg, the unit provides a compact yet powerful form factor suitable for industrial environments. Its shaft, measuring 9.5mm in diameter, is optimized for secure coupling and minimal backlash.

With an emphasis on technical performance, this motor has earned CE approval and is UCL approved for compliance with international safety standards. The protection class IP00 rating ensures cleanliness in controlled indoor environments, while its durable construction extends operational life under continuous duty. The flange diameter of 73mm and overall length of 161mm (without flange & shaft) facilitate straightforward mounting within constrained spaces. In addition, built-in precision motion control systems support ultra-smooth stepping and synchronization in multi-axis assemblies.

Operational efficiency is further enhanced by the motor’s solid build quality and resistance to mechanical wear. Its weight of 4.38kg strikes a balance between inertia and responsiveness, enabling quick acceleration without sacrificing stability. The 2-phase configuration minimizes vibration and acoustic noise, promoting quiet operation even at high stepping frequencies. A diameter of 86mm allows integration into standard NEMA mounting frames, while the shaft diameter of 9.5mm provides robust coupling for gearboxes, pulleys, or direct-drive attachments. Maintenance requirements are minimal thanks to sealed bearings and a corrosion-resistant finish.

Designed for seamless integration into industrial automation systems, the 103-845-02S0 motor interfaces easily with common stepper drivers and controllers. Its compact frame makes it an ideal candidate for packaging machinery, precision CNC tables, robotic positioning systems, and semiconductor handling equipment. Engineers will appreciate the motor’s consistent performance under varying load conditions and its compatibility with servo-hybrid control strategies. The 103-845-02S0 delivers a reliable, high-precision stepping solution for any application demanding repeatable positioning and smooth motion control.