U835T-072E46

The Sanyo Denki U835T-072E46 is a high-performance DC servo motor in the Super DC Servo Motors series, designed for demanding industrial automation applications. This compact unit delivers a rated rotating speed of 3000 rpm and a continuous stall torque of 0.42 Nm to meet precise positioning requirements. The motor operates on a rated armature voltage of 75 V and a rated armature current of 2 A, enabling smooth dynamic response. Its robust construction integrates a holding brake system rated at 90 VDC, ensuring reliable load retention when power is removed. The combination of a 4.8 mH armature inductance and advanced materials underpins consistent performance in harsh environments.

Technical capabilities of the U835T-072E46 are built around precision and responsiveness. The armature inductance of 4.8 mH and voltage constant of 19.1 V/min^-1 facilitate stable speed control across variable loads. Peak performance is assured with an instantaneous maximum torque of 1.8 Nm and a maximum rotating speed of 5000 rpm, supporting rapid acceleration profiles. Current handling is exceptional, featuring a stall armature current of 1.3 A and a holding brake current of 0.06 A, minimizing heat generation during engagement. Thermal management is optimized through a thermal resistance of 2.8 K/W and a thermal time constant of 20 min, allowing extended operation before thermal limits are approached. Additionally, the integrated tachogenerator, with a mass of 0.09 kg, provides high-resolution feedback for closed-loop control.

Operational features enhance reliability and safety in industrial settings. The integrated holding brake torque of 0.28 Nm delivers positive load locking for vertical or heavy load-holding applications, preventing drift during power loss. The rapid engagement and release of the 90 VDC brake supports frequent start–stop cycles without sacrificing responsiveness. Low keyed friction and optimized winding design reduce wear, while the continuous stall torque capacity ensures the motor maintains position under challenging loads. Advanced winding materials and precision balancing minimize vibration and acoustic noise, improving overall system longevity.

Integration of the U835T-072E46 within automated systems is straightforward, thanks to its standardized mounting and electrical interfaces. The motor readily interfaces with common servo drives and controllers in machine tools, robotic arms, and XYZ gantries. Its robust holding brake makes it particularly well suited for vertical axes in packaging machines, lifts, and automated material handling equipment. With its combination of precision feedback, thermal resilience, and safety braking, this motor streamlines design efforts and accelerates time to market in industrial automation projects.