KDA 3.3-050-3-APD-W1

The Bosch Rexroth Indramat KDA 3.3-050-3-APD-W1 from the KDA Spindle Drives series by Bosch Rexroth Indramat delivers advanced spindle performance with a Rated Current of 50 A and a DC Bus Voltage of 300 V. This 3-phase, Design 3 unit operates as part of the Product KDA family, offering a broad speed range controlled via an Analog +/- 10V Speed Command Value input. With a built-in Aux. Encoder Input for spindle or secondary motor feedback and a Position Command Value Digital 16-Bit Parallel Aux. Interface, commissioning and closed-loop control are streamlined. Its robust construction and precision electronics ensure high stiffness and accurate positioning under demanding machining loads.

Reliability is enhanced by a Forced Cooled by Heatsink Blower system powered by a dedicated AC Supply Source for Heatsink Blower of 220 VAC, maintaining optimal thermal conditions in continuous operation. The drive’s modular architecture simplifies integration into multi-axis machining centers and supports real-time corrections via the 16-bit parallel interface. Protection features guard against overcurrent events at the 50 A rating, while the DC bus voltage regulation maintains consistent torque output across the entire speed range. The KDA spindle drive’s digital command pathways and analog input options accommodate both modern CNC controllers and legacy automation platforms without additional converters.

Engineers benefit from the drive’s compact footprint and straightforward parameterization routines that leverage the integrated encoder and parallel command interface. Maintenance teams appreciate the forced-air cooling arrangement that minimizes downtime through easy filter access and blower replacement. The KDA 3.3-050-3-APD-W1 sets a benchmark for precision spindle control in high-stiffness milling, drilling, and grinding applications, ensuring repeatable performance cycle after cycle.