KDA 3.2-100-3-AQD-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.2-100-3-AQD-W1 is a spindle drive from the KDA Spindle Drives series. It features a rated current of 100 Amps and operates with a 300 VDC supply voltage. This drive uses forced cooling with a mounted heatsink blower powered by a 220V AC source and supports both analog speed command and digital position command interfaces.
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Product Description:
The KDA 3.2-100-3-AQD-W1 is a spindle drive module produced by Bosch Rexroth Indramat for the KDA Spindle Drives series. As a closed-loop power stage, it converts shared DC-bus energy into three-phase output for high-speed motorized spindles used in machine tools and other automated cutting equipment. By combining control and power electronics in a single rack-mount frame, the unit supports torque, speed, and position regulation for precise machining tasks. In machine-tool service, that control helps the spindle follow programmed speed changes while maintaining smooth operation under varying load. This layout suits installations where spindle response, stable speed control, and accurate orientation are needed during repetitive production cycles.
The power section is energized from a shared link of 300 VDC, and the output can deliver a continuous phase current of 100 A to the spindle motor. A separate heat sink fan operates on 220 V at 50–60 Hz, which keeps blower demand separate from the main DC bus. Thermal energy is removed by a mounted heat sink blower, and airflow is supported by forced cooling to keep semiconductor temperatures within operating limits during extended use. Because the blower uses its own supply, cooling performance is not tied directly to spindle current demand on the DC link. This cooling arrangement helps the module remain stable in applications that involve long cutting passes, repeated acceleration, and continuous spindle loading.
The drive operates in ambient temperatures from 5 to 45 °C and at elevations up to 1000 m above sea level. Speed reference data are supplied through an analog speed command, while a digital position command interface supports spindle orientation during tool changes or threading sequences. These command paths allow the control section to manage both continuous spindle speed and indexed position tasks without changing the overall drive role. That combination is useful when the spindle must run at a commanded speed and then stop at a repeatable angular position for the next machine action. The unit is Series 3 and Version 2 hardware in this product line.
Frequently Asked Questions about KDA 3.2-100-3-AQD-W1:
Q: What AC power source is needed for the heatsink blower on the KDA 3.2-100-3-AQD-W1?
A: The KDA 3.2-100-3-AQD-W1 requires a 220V AC source at 50-60Hz for the heatsink blower.
Q: What is the required DC supply voltage for the KDA 3.2-100-3-AQD-W1 spindle drive?
A: This spindle drive operates with a DC supply voltage of 300 VDC.
Q: What types of command value interfaces does the KDA 3.2-100-3-AQD-W1 support?
A: The KDA 3.2-100-3-AQD-W1 supports both analogue speed command values and digital position command value interfaces.
Q: What is the rated current of the KDA 3.2-100-3-AQD-W1 spindle drive?
A: This model provides a rated current of 100 A for spindle operation.
Q: How is the KDA 3.2-100-3-AQD-W1 spindle drive cooled during operation?
A: Forced cooling is implemented using a mounted heatsink blower on this spindle drive.
