KDA 2.1-100-3-AQD-W1 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 2.1-100-3-AQD-W1 is a spindle drive from the KDA Spindle Drives series with a rated current of 100 Amps and a DC supply voltage of 300 Volts. It uses a mounted heatsink blower for forced cooling and supports both position command value interfaces and analog speed commands. The unit operates at ambient temperatures from 5 to 45 degrees Celsius and can be installed up to 1000 meters above sea level.
Internal Product Review
The KDA 2.1-100-3-AQD-W1 spindle drive from Bosch Rexroth Indramat features a 100 A rated current and a 300 VDC supply voltage, making it well-suited for high-demand machining applications. Forced cooling is provided by a mounted heatsink blower operating at 220V/50-60Hz, ensuring stable thermal management. This spindle drive delivers reliable performance within ambient temperatures of 5 to 45°C, making it a strong choice for industrial environments.
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Product Description:
The KDA 2.1-100-3-AQD-W1 is a drive module manufactured by Bosch Rexroth Indramat and supplied within the KDA Spindle Drives series. Designed for machine-tool environments, the unit regulates the torque and speed of asynchronous or synchronous spindle motors so that cutting, drilling, or grinding processes follow programmed trajectories with stable power delivery. By converting DC bus power into controlled armature currents, it links the CNC controller to the spindle shaft and forms the interface between numerical commands and actual motion.
This model delivers a continuous output current of 100 A from a shared DC bus and must be connected to a supply that can maintain 300 VDC under load. Internal power dissipation is managed through a heat sink ventilated by an auxiliary fan supplied with 220 V, 50–60 Hz, and this dedicated blower helps keep semiconductor junctions within their limits during long machining cycles. Heat removal relies on forced cooling, so cabinet airflow does not need to carry the entire thermal burden. Motion data enter the drive as an analog reference in the form of a speed command value, allowing proportional velocity control without digital quantization ripple.
The cooling assembly uses a mounted heat sink blower, so replacement or service can be performed from the cabinet rear without disturbing power wiring. For position-oriented tasks such as tapping, a separate line carries a digital position command value, allowing the drive to blend speed and position loops as required by the program. Reliable operation is specified from 5 °C to 45 °C, which matches standard factory ambient conditions when the cabinet is ventilated. Installation is permitted up to 1000 m above sea level; above that altitude, thinner air reduces cooling capacity and the current rating must be derated.
