103-7555-7043 by Sanyo Denki

The Sanyo Denki 103-7555-7043 stepping motor is a high-precision drive unit within the StepSyn Stepping Motors series, designed for industrial automation applications requiring repeatable positioning and reliable torque delivery. This motor features a step angle of 1.8° per step for fine motion control and an estimated holding torque of 1–3 Nm to manage moderate loads effectively. Manufactured by Sanyo Denki, it operates on a typical rated voltage of approximately 24 V DC with a typical rated current of 1–2 A, providing a balance between power consumption and performance. The Motor Type: Stepping Motor (Step Synchronous Motor) supports open-loop control and is optimized for systems that do not require complex feedback loops.

The motor’s technical specifications are robust and clearly defined. The Control Interface: Pulse/Direction input supports standard stepping motor drivers and simplifies integration into existing motion control architectures. Its Feedback: Typically used in open-loop configurations eliminates the need for encoders or resolvers, reducing system cost and complexity. The Insulation Class: F rating ensures the winding can withstand thermal stresses up to 155°C, enhancing durability under continuous operation. The Shaft Design: Plain rounded output provides a versatile coupling point for pulleys, gears, or direct-drive mechanisms.

Operational parameters are equally well defined. The Operating Temperature: 0°C to 40°C range ensures stable performance in typical factory environments, while the Storage Temperature: -25°C to 70°C allows for safe transport and long-term warehousing. With a repetitive motion capability and instantaneous torque response inherent in stepper technology, this motor delivers precise positioning without overshoot. The typical rated current of 1–2 A and typical rated voltage of 24 V DC support moderate-speed applications up to several hundred steps per second, making it suitable for indexing tables, pick-and-place units, and light conveyor drives.

System integration is straightforward for engineering teams. The motor mounts using standard NEMA frame sizes and interfaces seamlessly with third-party stepper drivers or Sanyo Denki’s own controllers. Its open-loop design simplifies wiring and reduces the number of components required, which is ideal for cost-sensitive industrial applications. The combination of precise 1.8° step angle, reliable 1–3 Nm holding torque, and robust F-class insulation positions the 103-7555-7043 motor as an optimal choice for packaging machinery, labeling systems, textile automation, and laboratory instrumentation where repeatable, maintenance-free motion control is essential.