R301-011E
by Sanyo Denki
The Sanyo Denki R301-011E motor is a precision actuator within the Super DC Servo Motors series, designed to meet compactness and performance requirements in industrial automation. With a rated output of 39 W and a rated revolving speed of 3000 min⁻¹, this unit delivers consistent power in small form factors. It operates on a rated voltage of armature 72 V and draws a rated current of armature 0.82 A, ensuring efficient energy use in tight control loops. The motor’s torque constant of 0.174 N·m/A and rated torque of 0.11 N·m enable precise positioning tasks, while maintaining a low profile at a motor weight (including encoder) of 0.55 kg. Integrated encoder accommodation preserves the overall package size, making the R301-011E suitable for high-density installation scenarios.
Performance characteristics of the R301-011E include a rapid response driven by an electrical time constant of 0.26 ms and a mechanical time constant of 4.5 ms, minimizing lag between command input and shaft movement. The induced voltage constant of 18.2 mV/min⁻¹ ensures predictable back-EMF behavior for closed-loop control, and the armature resistance of 16.2 Ω provides stable thermal characteristics under continuous operation. During transient loads, the motor can supply up to momentary maximum stall current of 2 A and deliver a momentary maximum stall torque of 0.323 N·m, safeguarding against unexpected stalls. A rated power rate of 2.1 kW/s supports quick acceleration profiles, while maintaining current draw within design limits. Maximum revolving speed matches the rated speed at 3000 min⁻¹ to ensure linear response across the defined speed range. These specifications combine to provide smooth torque delivery and responsive control for demanding tasks.
Built for reliable integration, the R301-011E’s robust design supports extended uptime in industrial environments. The compact assembly simplifies mounting alongside other drive components and minimizes cabling complexity. Consistent thermal performance and a precisely defined armature resistance profile reduce maintenance intervals and allow predictable heat dissipation. This servo motor is ideally suited for applications such as small conveyor drives, precision pick-and-place robots, laboratory automation setups, and compact assembly machinery. Its blend of low inertia, high torque accuracy, and comprehensive technical data make the R301-011E a dependable choice for system integrators and OEMs seeking precise, compact motion solutions.
