Product Description:

The MAC025A-0-WS-4-E/040-B-0/WI670LV is an AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It provides precise torque and speed control in automated machinery such as indexing tables, pick-and-place arms, and light material-handling axes. Within a closed-loop control system, the motor converts electrical power into controlled rotary motion so machine controllers can position loads accurately. Its compact housing also supports installation in machinery where the available mounting space is limited.

The motor uses winding code WS, which indicates the coil resistance and inductance required for proper current regulation by a compatible drive. Its motor size is 025, while the compact A length identifies the axial housing length and active magnetic stack. Heat generated in the stator is removed through natural convection, allowing operation without an external fan when sufficient free airflow is available around the housing. Power conductors exit through a connector on side B, allowing the cable to be routed toward the rear of the installation. This connector orientation can reduce sharp cable bends and keep the power lead away from nearby moving components.

Position information is supplied by an incremental encoder with standard mounting, which returns detailed motion feedback to the drive for closed-loop regulation. The feedback interface also supports tacho feedback with incremental or absolute encoder options for applications that require additional speed or position monitoring. The motor has no blocking brake, so stationary loads must be held by drive torque or an external clamping device when required. It is classified as a motor for analog drives, and its sensors and winding system are designed for amplifiers that regulate motor current continuously. The encoder signals allow the connected amplifier to detect motion changes and correct position or speed errors during operation. External holding equipment may be necessary on vertical axes or other mechanisms that could move when motor torque is unavailable.