Product Description:

The KDA 3.2-100-3-AQS-W1 is a spindle drive produced by Bosch Rexroth Indramat and supplied within the KDA Spindle Drives series. In an automated machining cell, the unit provides closed-loop torque and speed regulation for high-speed spindle motors, ensuring that cutting tools maintain a set feed rate and finish quality. Because it is configured as a dedicated spindle controller, it links the machine control system to the mechanical spindle through power conversion, feedback, and thermal management circuits.

Its internal power stage draws the DC link from a regulated supply at 300 VDC, and the output devices can deliver up to 100 A of continuous phase current to the spindle windings. A separate AC branch rated at 220 V/50-60 Hz powers the heatsink blower, keeping semiconductor junctions below their thermal limits. That blower is physically integrated as a mounted heatsink blower, and the unit expels waste heat without external ducting. Operation is permitted at ambient temperatures between 5 to 45 °C, so cabinet conditioning must keep intake air within this range. The drive can be installed up to 1000 m, where air density still supports convective flow.

The speed loop accepts an analog reference, so the controller interprets a voltage or current command rather than a digital packet. Parameter access and diagnostics travel over a serial interface (RS 232 C), which supports connection to standard PC tools. Cooling uses forced cooling, so airflow across the power module is always driven by the dedicated blower regardless of spindle load. Separating the blower supply from the DC link keeps thermal behavior predictable even when the main bus experiences transient dips. Wake Industrial offers a one-year warranty on the KDA 3.2-100-3-AQS-W1 spindle drive.