KDA 2.1-150-3-APD-U1

The KDA 2.1-150-3-APD-U1, Bosch Rexroth Indramat, KDA Spindle Drives main spindle drive delivers precision motion with high rigidity, extensive speed range and continuous power for demanding machining applications. Featuring an integrated feedback interface and advanced thermal management, this unit is engineered to maintain stable operation under heavy loads. Designed specifically for spindle control, it combines robust mechanical design with sophisticated electronic control in a compact footprint. The drive’s analogue command and digital parallel interface enable seamless communication with modern CNC systems.

At its core, the device provides a Rated Current of 150 A and a DC Bus Voltage of 300 V, ensuring ample torque for high-inertia spindles. Thermal regulation is handled by a Cooling system that is Forced Cooled by Heatsink Blower powered from an AC Supply Source for Heatsink Blower of 115 VAC. Position feedback is accommodated via an Aux. Encoder Input compatible with spindle or secondary motor signals. Motion commands are delivered through an Aux. Interface offering Position Command Value Digital 16-Bit Parallel, while speed is controlled by an analogue Speed Command Value of +/- 10V. The module adheres to Design specification "1" within the Series "2" of Bosch Rexroth’s KDA family, with model identification as Product "KDA".

Engineers appreciate the KDA 2.1-150-3-APD-U1’s plug-and-play architecture, which simplifies integration into multi-axis CNC platforms. Its precision electronics and enforced cooling strategy guarantee reliable operation in continuous-duty environments, reducing maintenance intervals and unplanned downtime. Ideal for high-speed spindles across milling, grinding and drilling machines, this drive optimizes throughput while maintaining the tight tolerances required in advanced manufacturing.