KDA 3.3-150-3-LPS-U1

The Bosch Rexroth Indramat KDA 3.3-150-3-LPS-U1 from the KDA Spindle Drives series delivers robust spindle control with a rated current of 150 A and a DC Bus Voltage of 300 V. Engineered by Bosch Rexroth Indramat, this main spindle drive supports high stiffness architecture and precise positioning features for demanding machining applications. It utilizes a SERCOS - Interface for speed command values, ensuring accurate real-time communication with CNC controllers. The drive’s compact footprint and modular design simplify integration into existing machine tool platforms.

The KDA 3.3-150-3-LPS-U1 drive is classified under Design 3 and Product KDA, Series 3, highlighting its alignment with the proven KDA family heritage. Cooling is maintained via a forced-cooling heatsink blower powered by an AC Supply Source for Heatsink Blower of 115 VAC, supporting sustained operation under high thermal loads. Auxiliary interfaces include a Serial Interface RS 232 C and an Aux. Encoder Input with feedback for spindle or second motor, enabling versatile sensor and feedback connectivity. This configuration ensures seamless synchronization and diagnostic capabilities during spindle acceleration and deceleration cycles.

Reliability is further enhanced by the forced-cooling mechanism that maintains optimal junction temperatures under continuous power demands. The drive’s extensive speed range and positioning accuracy make it particularly suited for high-precision milling, drilling, and grinding operations. Overall, the KDA 3.3-150-3-LPS-U1 offers a professional, technical solution for spindle automation where rigidity, thermal management, and communication integrity are paramount.