KDA 3.1-050-3-LQS-U1

The Bosch Rexroth Indramat KDA 3.1-050-3-LQS-U1 from the KDA Spindle Drives series delivers precision spindle control with a rated current of 50 A and a DC Bus Voltage of 300 V. This drive features a SERCOS Interface Speed Command Value for high-speed communication and a forced cooling system achieved via an integrated heatsink blower supplied by a dedicated 115 VAC AC supply source. Connectivity is enhanced through a Serial Interface RS 232 C aux. interface, while the drive also supports an aux. encoder input for 1 V sinusoidal signals to ensure accurate feedback. The compact Design 1 package maintains a small footprint without sacrificing performance or reliability.

Built on the proven KDA product platform, this spindle drive provides continuous power delivery across an extensive speed range, bolstered by high torsional stiffness and precise positioning features. The Series 3 unit maintains stable operation under demanding machining cycles, where repeatability and dynamic response are critical. Its heatsink blower cooling approach rapidly dissipates thermal loads, extending maintenance intervals and improving uptime. Integrated self-monitoring routines and parameter storage facilitate streamlined commissioning and diagnostics via the RS 232 C port.

Ideal for CNC spindles, milling heads, and high-speed machine tools, the KDA 3.1-050-3-LQS-U1 excels in applications requiring tight speed regulation and robust acceleration profiles. Its modular architecture supports easy retrofit into existing installations, while the SERCOS interface simplifies network configuration. With Bosch Rexroth Indramat’s legacy of industrial reliability, this spindle drive delivers the precision, power, and protection demanded by modern manufacturing environments.