Product Description:

Bosch Rexroth Indramat manufactures the MAC025B-0-ZS-4-E/040-B-0/WI671LV servo motor. This unit is a compact AC motor intended for analog drive systems, where the torque and velocity loops are handled by the drive rather than by a digital controller. In automated machinery, it converts current commands from the drive into mechanical rotation, allowing indexing tables, packaging axes, and pick-and-place heads to follow the required motion profile with repeatable accuracy. Its compact format also makes it suitable for installations where low mass and responsive movement are important.

The motor relies on natural convection for heat dissipation, so the housing releases thermal energy without an external blower or liquid circuit. Power enters through a sealed circular connector positioned on side B, which helps keep cable routing clear when the shaft faces the machine frame. Rotor position is detected by an incremental encoder with standard mounting, which provides square-wave channels for speed and position feedback to the analog drive. The motor also supports tachofeedback incremental or absolute encoder feedback when the application requires a different signal set. The unit is supplied without a blocking brake, so holding torque at standstill must come from the driven mechanism or from energized motor current.

In physical terms, the frame corresponds to motor length 025 and motor size B, giving the motor a short stack and a flange suited to standard mounting patterns. Classified as a motor for analog drives, it works with legacy Rexroth or third-party thyristor and transistor amplifiers that regulate current in real time. Within the MAC AC Servo Motors series, this combination is well suited to light linear slides and small rotary actuators that require repeatable motion and quick acceleration. The short overall length also helps reduce inertia in axes that change speed frequently during normal operation.