KDA 2.1-050-3-AY0-U1

The Bosch Rexroth Indramat KDA 2.1-050-3-AY0-U1 spindle drive from the Bosch Rexroth Indramat manufacturer belongs to the advanced KDA Spindle Drives series, delivering high stiffness, precise positioning, and an extensive continuous speed range for main spindle applications. Its design accommodates rigorous production environments, offering built-in measures for thermal reliability and electrical stability. The drive architecture supports both analog velocity commands and tight closed-loop control, making it ideal for CNC machining centers and precision milling operations. With a compact footprint and modular interface options, the unit ensures smooth integration into existing machine tool control systems.

Featuring a 300 V DC Bus Voltage and a continuous 50 A Rated Current, the KDA 2.1-050-3-AY0-U1 drive sustains robust power delivery across the full operating envelope. An Analog ±10 V Speed Command Input provides high-resolution speed regulation, while the Auxiliary & synchronous Encoder Input Type enables accurate position feedback for dynamic spindle control. Thermal management is handled by a forced air cooling via heatsink blower arrangement, powered by an external 115 VAC Heatsink Blower AC Supply, ensuring effective heat dissipation under heavy duty cycles. The unit’s Auxiliary Interface is specified as None, simplifying the I/O layout, and its compact Design 1 enclosure conforms to the Product Code KDA standard within the Series 2 family. Durable construction and consistent performance parameters support extended production runs with minimal maintenance.

Integration into multi-axis CNC systems is streamlined by the drive’s industry-standard control signals and feedback topology, reducing engineering effort during commissioning. Its reliable forced-cooling scheme and robust electrical design ensure continuous operation even in high-speed machining and repetitive spindle engagements. The KDA 2.1-050-3-AY0-U1 drive combines precise dynamic response with proven ingress protection for demanding manufacturing environments, ultimately boosting machine uptime and throughput in precision toolroom, aerospace, and automotive production settings.