The KDA 3.1-150-3-LYS-U1, Bosch Rexroth Indramat, KDA Spindle Drives main spindle drive combines robust mechanical design with high-precision positioning and an extensive speed range. It delivers continuous power for demanding machining and spindle applications and features integrated stiffness optimization to maintain accuracy under load. The unit’s compact form factor and modular interface architecture simplify installation into both new and existing machine tools. Native support for fieldbus and motion control protocols ensures seamless integration into complex production lines.
Engineered for rigorous industrial environments, this spindle drive offers a Rated Current of 150 A and a DC link rating of 300 V for superior torque delivery. Cooling is handled via Forced via heatsink blower to maintain thermal stability, powered by a dedicated 115 VAC Heatsink Blower Supply. Communication is facilitated through a SERCOS Speed Command Interface and a secondary RS-232C serial Auxiliary Interface, while precision feedback is achieved with a Synchronous per AS35 Auxiliary Encoder Input. With its Design index of 1, and as part of the Series 3 model family identified as KDA, it meets tight tolerance requirements without compromise.
Reliability is enhanced through a hardened heatsink assembly and sealed power electronics, ensuring long service intervals and minimal maintenance. The drive’s standardized module footprint and plug-and-play connector system accelerate commissioning and reduce downtime. Ideal for high-speed spindles, milling centers, and automated machining platforms, the KDA 3.1-150-3-LYS-U1 delivers dependable performance and precise motion control across diverse applications.
Auxiliary Encoder Input
Synchronous per AS35
Auxiliary Interface
RS‑232C serial
Cooling Method
Forced via heatsink blower
DC Bus Voltage
300 V
Heatsink Blower Supply
115 VAC
Model
KDA
Rated Current
150 A
Series
3
Speed Command Interface
SERCOS
Design
1