KDA 3.2-050-3-DQS-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 3.2-050-3-DQS-U1 is a spindle drive from the KDA Spindle Drives series. It operates with a rated current of 50 Amps and requires a 300 VDC supply voltage. The unit uses forced cooling with a mounted heatsink blower powered by a 115V, 50-60Hz AC source, and features a serial RS 232 C interface.
Internal Product Review
The KDA 3.2-050-3-DQS-U1 spindle drive from Bosch Rexroth Indramat features a rated current of 50 A and operates on a 300 VDC supply, making it well-suited for demanding spindle applications. Integrated forced cooling with a mounted heatsink blower supports continuous operation within ambient temperatures of 5 to 45°C. Reliable performance is further enhanced by a digital 16-bit parallel speed command interface.
Have a part to sell?
Wake Industrial Warranty
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The KDA 3.2-050-3-DQS-U1 is a spindle drive module manufactured by Bosch Rexroth Indramat for the KDA Spindle Drives series. The unit functions as the regulated power link between a machine controller and a three-phase spindle motor, adjusting torque and speed so machining centers can perform constant-speed cutting, tapping, or grinding under changing loads. By processing digital speed references and feeding controlled current to the motor windings, the module automates spindle motion while retaining the rapid acceleration demanded in modern CNC and transfer-line equipment. This operating role makes it suitable for spindle applications that must keep speed stable during tool engagement and other rapid load changes.
Internally, the power stage is designed for a DC bus of 300 VDC, a level matched to the supply modules found in Indramat drive cabinets. Under continuous operation, the output stage can deliver 50 A to the spindle windings, supplying the current reserve needed for sharp acceleration profiles. Heat is removed by a heatsink blower, and the drive uses forced cooling. The blower requires an auxiliary supply of 115 V, 50–60 Hz, allowing it to run whenever cabinet mains are present. Position controllers feed the module with a digital 16-bit parallel speed reference, providing fine resolution in each velocity update without analog drift.
The drive maintains rated performance in ambient temperatures from 5 to 45 °C, eliminating the need for cabinet chillers in most workshops. Altitude capability reaches 1000 m above sea level before derating is required, so standard output is retained in many facilities. Parameters and diagnostic registers are accessible through the integrated RS-232 C serial interface, which allows direct access to operating data while the module remains installed in the rack. The unit is in Series 3 and version 2, matching KDA racks that use the same bus bars and connector pinouts.
