KDA 3.3-050-3-API-W1

The KDA 3.3-050-3-API-W1, Bosch Rexroth Indramat, KDA Spindle Drives main spindle drive delivers a combination of high stiffness, precise positioning, and a broad speed range, making it an ideal choice for demanding machine tool spindles. Engineered for continuous operation, this drive supports dynamic load changes and maintains accuracy under heavy cutting conditions. Its compact footprint streamlines integration into existing CNC cabinets, while the robust design minimizes susceptibility to mechanical shock and vibration. Service access is optimized by modular connectors and clear status indicators.

The drive features a DC Bus Voltage of 300 V and a continuous Rated Current of 50 A, ensuring sustained torque delivery across the full speed envelope. Speed reference is provided via a Speed Command Value of Analog +/- 10V, enabling seamless interfacing with standard CNC controllers or PLC-based systems. Thermal management is handled by a Cooling scheme with a dedicated AC Supply Source for Heatsink Blower rated at 220 VAC, preserving performance under peak loads. Feedback and auxiliary functions are supported by an Aux. Encoder Input for spindle or secondary motor position feedback and an Aux. Interface offering Incremental Encoder Output for external monitoring or synchronization. The drive’s internal topology follows the Design "3" architecture from the KDA Series, assuring compatibility with legacy modules and simplifying spares management.

Designed for hassle-free integration, the KDA 3.3-050-3-API-W1 interfaces directly with Bosch Rexroth Indramat CNC platforms, reducing engineering effort and commissioning time. The forced cooling blower and rugged construction provide exceptional reliability in harsh environments, while modular encoder I/O and analog command options guarantee flexible deployment across varied machining centers. Overall, this spindle drive combines high performance, stable thermal behavior, and straightforward connectivity for improved uptime and productivity.