PreXion 103H7121-7140 Sanyo Denki Stepping Motor from 3D Excelsior X-Ray System

PreXion 103H7121-7140 Sanyo Denki Stepping Motor from 3D Excelsior X-Ray System

• Part No. 103H7121-7140 PreXion
• Date of Manufacture: 2019
• 1A 1.8°/ STEP

This medical equipment item is a subcomponent or part that has been extracted from a larger system or unit. It is intended for use as a replacement part or for integration into another system. Its condition may vary, but it has been removed with care to preserve its functionality.

The PreXion 103H7121‑7140 is a member of Sanyo Denki's SANMOTION F2 103H7121 series of 2‑phase hybrid stepping motors. These motors deliver a precise 1.8° step angle, enabling accurate positioning critical for medical imaging applications like those in PreXion’s 3D X‑ray systems. Housed within a 56 mm square frame (NEMA 56), the motor embodies a compact yet robust design suitable for constrained internal mechanics.

Known for their low-vibration performance—up to approximately 10% less vibration compared to earlier models—these motors can operate smoothly even with coarse-step modes thanks to their micro-stepping capability, supporting up to 256 divisions in AC input or 16 divisions in DC input. This stability is essential in X‑ray systems, where even minor vibrations can degrade image clarity.

The motor's detailed specifications underscore its suitability for precision imaging devices. It delivers a holding torque of 0.55 N·m (roughly 550 mN·m or 77.9 oz‑in), runs on a 2 A per phase current at 24 V DC, and features a bipolar lead‑wire connection. With a single D‑shaped shaft, operating temperature range of –10 °C to +50 °C, and a weight of around 0.47 kg, this motor balances compactness and durability—perfect for the precise mechanical movements required in the PreXion 3D Excelsior.