KDA 2.1-050-3-LQI-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 2.1-050-3-LQI-W1 is a spindle drive in the KDA Spindle Drives series, featuring a rated current of 50 Amps and a DC supply voltage of 300 Volts. This model uses a mounted heatsink blower for forced cooling and supports an ambient temperature range of 5 to 45 degrees Celsius. It includes an incremental encoder output and a SERCOS interface for speed command value.
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Product Description:
The KDA 2.1-050-3-LQI-W1 spindle drive is produced by Bosch Rexroth Indramat within the KDA Spindle Drives series. Classified as version 2 in the product line, the unit serves as a regulated power stage for AC spindles in CNC machining centers and automated production cells. Acting between a DC bus supply and the motor, it interprets velocity references from a higher-level controller and modulates current so that the spindle receives precise torque for drilling, milling, or turning tasks.
Its DC link accepts 300 VDC, and the power section can deliver up to 50 A of continuous motor current for the connected spindle. Thermal stability is maintained by a mounted heat sink blower that pulls air across the rear fin stack. This hardware is supported by a forced cooling design, so waste heat is removed even at low motor speeds. The blower itself is energized from an auxiliary line rated at 220 V 50–60 Hz, allowing it to operate independently of the main DC bus and maintain fixed airflow regardless of load.
Reliable operation is permitted between 5 to 45 °C, and installation is allowed up to 1000 m altitude. Velocity commands arrive through a SERCOS interface, while position feedback can be forwarded to external control hardware through an incremental encoder output. This arrangement allows the drive to exchange motion data with distributed control systems while maintaining regulated spindle operation. The operating limits suit typical factory conditions, and the communication path supports integration with coordinated machine control. Wake Industrial can ship this motor internationally via a variety of carriers. Additionally, Wake Industrial offers a one-year warranty on this Bosch Rexroth KDA 2.1-050-3-LQI-W1 spindle drive. For questions on type codes, customers can use the chat tool available on the website.
Frequently Asked Questions about KDA 2.1-050-3-LQI-W1:
Q: What is the rated current for the KDA 2.1-050-3-LQI-W1 spindle drive?
A: The KDA 2.1-050-3-LQI-W1 spindle drive operates with a rated current of 50 A for spindle applications.
Q: What type of cooling does the KDA 2.1-050-3-LQI-W1 use?
A: This spindle drive uses a forced cooling system with a mounted heatsink blower for thermal management.
Q: What is the required DC supply voltage for the KDA 2.1-050-3-LQI-W1?
A: The KDA 2.1-050-3-LQI-W1 accepts a DC supply voltage of 300 VDC.
Q: What type of speed command interface does the KDA 2.1-050-3-LQI-W1 support?
A: This model supports a speed command value input through the SERCOS Interface.
Q: What additional interface is available on the KDA 2.1-050-3-LQI-W1 spindle drive?
A: The KDA 2.1-050-3-LQI-W1 includes an incremental encoder output as an additional interface.
