103H7522-7081 by Sanyo Denki

The 103H7522-7081 motor by Sanyo Denki is a precision-engineered solution in the StepSyn Stepping Motors series, designed for applications demanding consistent motion and high reliability. This 2-phase synchronous motor operates at a rated voltage of 100/120/220 VAC and supports both 50 Hz and 60 Hz power supplies. With a synchronous pull-out torque ranging from 0.54 to 5.5 N·m, it delivers substantial rotational force across a broad range of loads. The unit’s compact design maintains ultra-low speed stability at 60 rpm @50 Hz and 72 rpm @60 Hz, ensuring accurate positioning in automation systems. Its operational envelope spans an ambient temperature of –10°C to +50°C, making it suitable for diverse industrial environments.

From a technical perspective, the 103H7522-7081 provides a rated current of 0.4 A nominal (0.15–0.9 A) and utilizes UL3266 AWG22 lead wire for robust electrical connections. The motor’s mass of 0.65–7.5 kg varies by mounting and configuration, allowing designers to balance inertia and dynamic response. Engineered to maintain performance in 20%–95% RH (non-condensing) conditions, the unit employs high-precision windings and bearings to minimize cogging torque. The combination of its motor type, frequency compatibility, and lead wire specification ensures seamless integration with standard power grids and drive electronics. Temperature and humidity resilience further underscore its suitability for demanding automated processes.

Operationally, this stepping motor excels in providing steady, repeatable motion under variable loads thanks to its synchronous pull-out torque and optimized winding design. The low hysteresis and precise magnetic circuit reduce speed variations, delivering reliable performance in indexing, conveyor, and position-control applications. Its wide rated voltage range and dual-frequency capability eliminate the need for specialized power supplies, simplifying inventory and installation. The robust lead wire and sealed bearing assemblies enhance durability, minimizing maintenance downtime and extending service life. Additionally, its compact footprint and modular mass options offer flexibility in system layouts.

Integration of the 103H7522-7081 is streamlined through its standard UL3266 AWG22 lead wire interface and compatibility with industry-standard drive controllers. The motor’s proven performance in industrial automation makes it ideal for CNC machinery, robotic actuators, packaging equipment, and testing rigs. Its broad operating envelope and high torque density ensure it can meet the precise motion requirements of modern manufacturing and process-control systems.