KDA 3.3-150-3-DQ0-U1

The Bosch Rexroth Indramat KDA 3.3-150-3-DQ0-U1 drive from the KDA Spindle Drives series is engineered for demanding spindle applications requiring high stiffness and extended speed range. This main spindle drive delivers a continuous Rated Current of 150 A and operates on a DC Bus Voltage of 300 V, ensuring robust torque delivery across variable loads. Integrated digital control enables precise positioning, while the compact, modular design streamlines installation in machine tool cabinets. Its solid-state architecture enhances dynamic response and minimizes mechanical resonance during high-speed operation.

Incorporating a Digital 16-Bit Parallel Speed Command Value, the KDA 3.3-150-3-DQ0-U1 accepts high-resolution setpoints for accuracy better than 0.01% of full scale. Forced cooling is provided by a dedicated Heatsink Blower with an AC Supply Source for Heatsink Blower of 115 VAC, maintaining thermal stability under peak loads. An Aux. Encoder Input supports 1 V sinusoidal feedback, enabling closed-loop control of modern rotary encoders, while the unit ships Without Aux. Interface to accommodate customer-specific I/O modules. The unit’s Design 3 topology and Product KDA platform leverage proven power electronics for high reliability, and the Series 3 build ensures consistency across installations.

Engineered for seamless integration, the KDA drive couples directly with Bosch Rexroth motion controllers and third-party CNC systems via parallel interfaces. A robust enclosure and forced-air cooling guarantee uninterrupted operation in harsh shop environments, reducing unplanned downtime. Its combination of high overload capacity, precise speed regulation, and modular packaging makes it ideal for milling, turning, and grinding spindles in advanced machine tools.