MDD025A-N-100-N2K-040GB1
Bosch Rexroth Indramat manufactures the MDD025A-N-100-N2K-040GB1 as part of the MDD Synchronous Motors series. The unit is a size 025, length code A servo motor that works with digital drive controllers in automated packaging, semiconductor, and assembly equipment. By converting regulated three-phase current into torque, it delivers repeatable motion profiles without intermediate gear stages. The standard housing allows installation in tight spaces, and the factory balancing helps keep vibration low during prolonged production.
The motor mounts with a centering diameter of 40 mm, which helps maintain concentric alignment with adjacent mechanical components. Power and feedback conductors exit on side B, so the connector face can remain clear of moving parts. A single multi-pin connector carries phase power and resolver lines, which reduces wiring complexity. At stall, the drive can draw on 0.33 Nm of continuous torque for fixture clamping or slow indexing without thermal overload. When commanded to run, the rotor reaches a nominal speed of 10000 rpm, which suits applications that require short positioning times and fine surface finishes on micro-machined parts.
For secure stopping, a blocking brake produces 1.0 Nm of holding torque and is energized through the same connector. Motion feedback uses an integrated absolute encoder that stores an absolute position reference, while instantaneous angle is tracked through resolver feedback, allowing the controller to resume closed-loop control immediately after power-up. The motor also uses a plain shaft with a factory-installed shaft seal to help prevent contamination ingress when it is coupled to precision lead screws or timing pulleys. This feedback arrangement is useful in axes that need position recovery without a homing move after each startup.
