F SANMOTION Stepping Motors

The SANMOTION Stepping Motors series features 42 mm square, 2-phase motors with a 1.8° step angle, offered in both unipolar and bipolar versions. Unipolar models provide holding torque from 0.22 to 0.58 N·m, while bipolar models span 0.29 to 0.8 N·m. Overall length varies from 33 to 59.5 mm, phase current is 1 to 1.2 A, and phase inductance ranges from 2.4 to 16 mH. Rotor inertia falls between 0.031 and 0.094 x 10^-6 kg·m², and weight ranges from 0.23 to 0.51 kg. Compared with earlier models, acoustic noise drops by about 3 to 5 dB, a clear benefit for quiet applications such as medical devices. Efficiency improves by roughly 2%, enabled by refined stator core design and optimized winding spaces, resulting in cooler operation (around 10°C lower) and about 10% lower power consumption, which can extend equipment life. A 42 mm flange and familiar mounting scheme allow easy drop-in integration. Built for automated production, the series streamlines manufacturing and supports consistent quality across volume builds. Optimized magnetic circuits and high-flux magnets also deliver a 10 to 15% increase in torque.