KDA 3.3-050-3-DPD-U1

The Bosch Rexroth Indramat KDA 3.3-050-3-DPD-U1 from the KDA Spindle Drives series is a high-performance drive controller designed for demanding machining centers. Manufactured by Bosch Rexroth Indramat, this unit delivers a Current Rated capacity of 50 A and sustains a Continuous Current of 35 A under full load. Its modular architecture features a rugged design and offers precise speed regulation across an extensive range. The controller’s compact form factor and standardized interfaces simplify integration into automated production lines.

Detailed technical specifications include a Rated Voltage of 300 V matched to the DC bus, ensuring stable power delivery. Forced cooling is provided by a dedicated Heatsink Blower with a Rated Connection Voltage for attached Blower of AC 50–60 Hz, maintaining optimal thermal performance even during heavy machining cycles. The drive supports a Digital 16-Bit Parallel Speed Command Value for high-resolution setpoint input and features an Aux. Encoder Input for spindle or secondary motor feedback via the Aux. Interface1 port. The unit’s Design: 3 chassis and Series: 3 control platform utilize robust components, while onboard diagnostics monitor voltage, current, and temperature parameters in real time.

Engineers benefit from the KDA 3.3-050-3-DPD-U1’s seamless integration with Rexroth CNC controllers and EtherCAT networks, enabling synchronized multi-axis motion and rapid commissioning. Its forced-air cooling and industrial-grade construction deliver exceptional reliability in 24/7 operation. Ideal for precision turning, milling, and grinding applications, this drive controller ensures consistent spindle stiffness and dynamic performance throughout the production cycle.