KDA 3.3-150-3-DPI-U1

The Bosch Rexroth Indramat KDA 3.3-150-3-DPI-U1 is a high-performance spindle drive from the KDA Spindle Drives series by Bosch Rexroth Indramat. It delivers a Rated Current of 150 A and operates on a DC Bus Voltage of 300 V, making it ideal for demanding CNC spindle applications. Featuring a Digital 16-Bit Parallel Speed Command Value, this drive ensures precise speed control across a broad range. Designed as a main spindle drive, it excels in positioning tasks and continuous power delivery, meeting the rigorous demands of modern machining centers.

This KDA spindle drive is built with robust technical specifications to support reliable operation. The drive’s heatsink blower runs on an AC Supply Source for Heatsink Blower of 115 VAC, enabling forced cooling that maintains stable temperatures under high loads. The Aux. Encoder Input accommodates feedback for either the spindle or a second motor, while the Aux. Interface offers an Incremental Encoder Output for seamless integration with control systems. Its design code 3 and product identifier KDA reflect the series architecture, optimized for rigidity and dynamic response.

In addition to precise speed regulation, the KDA 3.3-150-3-DPI-U1 ensures compatibility with a range of encoder technologies and control protocols. Its forced cooling by a dedicated heatsink blower enhances thermal management and long-term durability, preventing performance degradation in continuous operation. The drive’s digital speed command interface promotes high efficiency by minimizing latency in speed adjustments. By adhering strictly to the series design, this spindle drive delivers exceptional stiffness, rapid positioning, and reliable power output—benefits that make it an indispensable component in industrial machining and automation environments.