T404-012
by Sanyo Denki
The Sanyo Denki T404-012 servo motor is a precision motion actuator in the T SANMOTION Servo Motors series, manufactured by Sanyo Denki for demanding industrial automation applications. This compact unit delivers a rated output of 40 W and operates at a rated armature voltage of 72 V, making it ideal for systems requiring accurate speed and torque control. With a rated torque of 0.13 N·m at 3000 min⁻¹ and a continuous stall torque of 0.14 N·m, the T404-012 ensures consistent performance during start-stop cycles and steady-state operations.
The T404-012 is engineered with detailed technical specifications that enhance its control dynamics and robustness. It achieves a maximum rotating speed of 5000 min⁻¹ and produces an instantaneous maximum torque of 0.76 N·m for handling transient load spikes. The motor’s torque constant of 0.174 N·m/A and voltage constant of 18.2 V/min⁻¹ provide predictable torque and speed response, while the electrical time constant of 0.35 ms ensures rapid reaction to control inputs. Rated armature current is 1.0 A, with a stall armature current of 0.9 A, optimized for precision in closed-loop servo systems. The rotor inertia of 0.0084 × 10⁻³ kg·m² paired with a load inertia of 0.27 × 10⁻⁴ kg·m² contributes to smooth acceleration and deceleration under varying load conditions.
Additional attributes of the T404-012 stem from its lightweight and compact construction. With a mass (including sensor) of 0.65 kg, this motor simplifies integration into space-constrained assemblies and reduces inertia-related stress on mounting structures. The precise torque profile and low inertia combination enhance overall system efficiency, minimizing energy consumption while maintaining high dynamic performance. Designed for industrial environments, the T404-012’s robust electrical characteristics promote compatibility with modern servo drives and controllers. By leveraging these capabilities, engineers can achieve tight speed regulation, reliable torque delivery, and increased throughput in automation systems.
