U835T-072E46

Product Description:

The Sanyo Denki U835T-072E46 motor features a holding brake system with a brake voltage of 90 VDC and holding torque of 0.28 Nm for improved safety in vertical and heavy load-holding applications. Its 90 VDC brake voltage guarantees efficient and fast engagement and release of the electromagnetic brake, thus making its performance dependable and consistent within dynamic working conditions. This is especially significant where the motor has limited backdriving capability, e.g. in lifts, Z-axis drives, or automated handling equipment, where a vertical axis is typically used. The 0.28 Nm holding torque is high enough that even light to medium loads remain stationary when the motor is not powered and avoid unintentional movement or drift.

The primary feature of this motor is that its voltage constant of 19.1 V/min^-1, which specifies the voltage produced per unit speed. This is a critical feature for speed control and is important in achieving smooth operations under variable loads. A constant voltage applied to the motor enables highly accurate and stable conversion between electrical and mechanical energy, ensuring smooth and controlled operation, which is essential in precision-demanding, feedback-based positioning systems commonly used in CNC machines, advanced robotics, and automated testing equipment, where exact movement and repeatability are critical for high performance and reliability.

Another significant feature is its thermal time constant of 20 minutes, which indicates how long this servo motor takes to heat up during operation. A larger thermal time constant allows the motor to operate under high load for a longer period before reaching a potentially damaging temperature. These features improve reliability, eliminate the chances of thermal shutdowns and limit the necessity of routine fixing due to advanced cooling.