KDA 3.3-050-3-AYD-U1

The Bosch Rexroth Indramat KDA 3.3-050-3-AYD-U1 from the KDA Spindle Drives series is engineered for precision motion control and uninterrupted spindle performance. Featuring a Rated Current of 50 A and a DC Bus Voltage of 300 V, this main spindle drive delivers consistent torque and dynamic responsiveness. The drive’s Product designation as KDA and Design level 3 ensure compatibility with advanced CNC applications. Built for demanding environments, it incorporates a Cooling system that is forced cooled by a heatsink blower for reliable thermal management.

As part of its control architecture, the KDA 3.3-050-3-AYD-U1 supports an Aux. Interface with position command value digital 16-bit parallel inputs and an Aux. Encoder Input featuring auxiliary and synchronous signals compliant with AS 35 and speed command requirements. Operators can fine-tune spindle speed using the Speed Command Value of analog ±10 V, offering smooth acceleration and deceleration profiles across a broad speed range. The internal heatsink blower operates on an AC Supply Source for Heatsink Blower of 115 VAC, maintaining optimal operating temperatures under continuous load. Robust electronics and protective measures guarantee consistent uptime in high-stiffness, high-precision machining tasks.

Installation and commissioning are streamlined thanks to the drive’s modular design and standardized interfaces, reducing integration time on machine tools. With comprehensive diagnostics and parameterization options, the unit supports predictive maintenance and minimizes unplanned downtime. The result is a versatile spindle drive highly suited for high-speed machining centers, threading operations, and demanding milling applications.