KDA 3.1-050-3-DY0-W1

The Bosch Rexroth Indramat KDA 3.1-050-3-DY0-W1 main spindle drive from the Bosch Rexroth Indramat KDA Spindle Drives series delivers high rigidity, precision positioning, and an extensive speed range for demanding machining applications. It features a Rated Current of 50 A and a DC Bus Voltage of 300 V to match common intermediate circuits. Equipped with a digital 16-bit parallel speed command input, it ensures rapid and accurate control of spindle acceleration and deceleration. The drive’s Design Number 1 designation underlines its proven architecture and consistent performance in continuous-duty environments.

The drive integrates a Cooling Method of forced via heatsink blower powered by a dedicated 220 VAC Heatsink Blower AC Supply, maintaining optimal thermal stability under continuous operation. An Auxiliary Encoder Input supports both synchronous and auxiliary feedback modes, while the Auxiliary Interface remains intentionally output-free to streamline configuration and reduce EMI. Built on the Product Code KDA platform with a Design Number 1 designation and classified in Series 3, it balances modularity with a compact footprint that simplifies rack mounting. Its DC Bus Voltage rating of 300 V matches standard spindle-control architectures, and the precision-ground mechanical design ensures consistent Rated Current delivery of 50 A even under high-load conditions.

Designed for seamless integration into CNC machining centers, grinding spindles, and other high-precision milling systems, the KDA 3.1-050-3-DY0-W1 drive adapts to existing bus structures and control platforms without additional hardware. Its disciplined forced-cooling regime and standardized 220 VAC blower supply ensure long-term reliability and significantly reduced maintenance intervals, even under continuous high-speed operation. By delivering precise torque control and rapid speed transitions, the drive enables enhanced throughput and superior surface finish in advanced manufacturing applications.