KDA 3.1-100-3-D0I-U1

The Bosch Rexroth Indramat KDA 3.1-100-3-D0I-U1 module from the Bosch Rexroth Indramat KDA Spindle Drives series delivers precision spindle control with robust performance. Engineered for demanding machine-tool applications, it features a compact footprint and rugged construction to ensure long service life in industrial environments. Designed for continuous operation, this drive integrates seamlessly with automation systems to provide accurate speed and torque regulation. Its high-stiffness control loop and wide speed range support both finishing and roughing operations with consistent repeatability.

Drive specifications include a Rated Current of 100 A and a DC Bus Voltage of 300 V, ensuring ample power headroom for heavy machining cycles. Forced cooling is achieved via an integrated Heatsink Blower powered by a dedicated 115 VAC AC supply source, maintaining optimal junction temperatures under prolonged load. The drive accepts a Digital 16-Bit Parallel Speed Command Value for high-resolution speed setpoint input, while the Aux. Interface provides an Incremental Encoder Output for precise feedback integration. The design conforms to Rexroth’s Design 1 standard and carries the internal Product: KDA identifier, Series 3, suitable for direct mounting in control cabinets. Additionally, the unit is delivered without an auxiliary encoder input, simplifying system architecture where external feedback is unnecessary.

Integration into multi-axis CNC platforms is streamlined by standardized mounting dimensions and Rexroth’s proven control algorithms, reducing commissioning time and minimizing alignment errors. The forced-cooling architecture enhances reliability, supporting continuous high-speed operation with minimal thermal drift. As part of the KDA series, the KDA 3.1-100-3-D0I-U1 offers machine builders a durable, high-performance spindle drive solution for milling, turning, and grinding applications where precision and uptime are critical.