KDA 3.2-100-3-AQD-U1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat KDA 3.2-100-3-AQD-U1 is a spindle drive from the KDA Spindle Drives series and operates with a rated current of 100 Amps and a 300 VDC supply voltage. It uses forced cooling with a mounted heatsink blower powered by a 115V AC source at 50-60Hz, and supports digital position command and analog speed command value interfaces. The drive can be installed at elevations up to 1000 meters and functions in temperatures ranging from 5 to 45 degrees Celsius.
Internal Product Review
The KDA 3.2-100-3-AQD-U1 spindle drive from Bosch Rexroth Indramat features a mounted heatsink blower and forced cooling for reliable thermal management during continuous operation. With a rated current of 100 A and a 300 VDC supply voltage, this model is well-suited for demanding spindle control applications. Consistent performance and digital position command interface make it a dependable option in precision environments.
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Product Description:
The KDA 3.2-100-3-AQD-U1 spindle drive is built by Bosch Rexroth Indramat and belongs to the KDA Spindle Drives series. As a member of Series 3, Version 2, it regulates high-speed machining spindles by converting DC bus energy into controlled three-phase output. Within an automation cell, the drive supplies torque and speed commands to a connected motor, letting the CNC controller vary spindle velocity during cutting, drilling, or grinding operations. Because spindle demand can change quickly with tool engagement, the drive is intended for applications that need responsive speed correction and consistent torque delivery through the cut.
The drive draws its DC link energy from a 300 VDC supply and can deliver a rated output of 100 A to the armature. Heat produced by its IGBT stack is removed through a mounted heat sink blower, and cooling is maintained by forced cooling. The blower uses an auxiliary feed of 115 V/50-60 Hz, so the cabinet must provide that single-phase circuit. Airflow across the heat sink helps remove switching losses from the power electronics without relying on passive convection alone. This cooling arrangement helps the power stage remain stable during rapid load changes and continuous spindle operation.
For reliable service, the unit is specified for ambient temperatures from 5 to 45 °C and may be installed at elevations up to 1000 m above sea level without derating. Control electronics interpret an analog speed command value from the motion controller and can also accept a digital position command value for synchronized spindle orientation. That capability is useful on machines that must align the spindle to a fixed angle before clamping, tool change, or synchronization with a feed axis. These separate command paths support threading, C-axis functions, and other machine cycles that require both continuous rotation and indexed stopping. The input structure also allows the drive to switch between speed regulation and position-related tasks without interrupting normal spindle control.
