KDA 3.1-050-3-L00-U1

KDA 3.1-050-3-L00-U1, Bosch Rexroth Indramat, KDA Spindle Drives represents a main spindle drive engineered for high-stiffness applications and precision positioning. It delivers a broad speed range with continuous power handling that adapts to demanding machining cycles. The drive’s architecture emphasizes rigidity and thermal stability, ensuring consistent torque delivery under dynamic loads. Integrated control interfaces streamline operation, enabling optimized spindle performance in advanced CNC systems.

With a Rated Current of 50 A and a DC Bus Voltage of 300 V, the KDA 3.1-050-3-L00-U1 drives spindles reliably across varied duty cycles. Forced heat dissipation is managed by a Cooling system consisting of a Forced Cooled by Heatsink Blower arrangement powered from an AC Supply Source for Heatsink Blower of 115 VAC. Command signals are processed via a Speed Command Value through a SERCOS - Interface protocol, while the design omits auxiliary ports: Aux. Encoder Input Without and Aux. Interface Without. The unit conforms to a Design classification of 1, belongs to Series 3 of the KDA family, and is identified by the Product code KDA itself.

Engineered for seamless integration into multi-axis CNC spindles, this spindle drive ensures high reliability even under peak thermal stress thanks to its forced-cooling topology. The robust mechanical and electrical design minimizes vibration, extending tool life and enhancing surface finish quality. Its standardized form factor and SERCOS connectivity facilitate rapid deployment and simplified maintenance in machine tool and specialized automation environments.