The Bosch Rexroth Indramat KDA 2.1-050-3-DYI-U1 from the KDA Spindle Drives series by Bosch Rexroth Indramat delivers precision spindle control with robust power handling for demanding machining applications. This main spindle drive features high rigidity and advanced positioning functions to support tight tolerance requirements. It spans a wide speed range under continuous loading, ensuring consistent performance across varied cutting conditions. Its modular design simplifies installation and field servicing in high-throughput production cells.
Incorporating a Rated Current: 50 A capacity and a DC Bus Voltage: 300 V, the drive maintains stable torque and speed under peak loads. Forced cooling is achieved via a dedicated Cooling Method: Forced air (Heatsink Blower) supplied by an AC Supply for Heatsink Blower: 115 VAC source, preserving electronics life and thermal stability. Speed setpoints are handled through a Speed Command Interface: Digital 16-bit Parallel input, while motion synchronization is supported by both Auxiliary Encoder Input: Auxiliary & Synchronous inputs (AS 35) and an Auxiliary Interface: Incremental Encoder Output. Internal firmware labeled Design Number: 1 ensures consistent feature sets across deployments and simplifies maintenance.
Engineers benefit from the drive's plug-and-play compatibility within existing Rexroth motion architectures, reducing integration time and engineering overhead. Its forced-air cooling and hardened power stage deliver reliability in continuous-duty spindle applications, minimizing unplanned downtime. The KDA 2.1-050-3-DYI-U1's balanced combination of power, precision, and serviceability makes it ideal for CNC lathes, milling centers, and high-speed drilling rigs.
AC Supply for Heatsink Blower
115 VAC
Auxiliary Encoder Input
Auxiliary & Synchronous inputs (AS 35)
Auxiliary Interface
Incremental Encoder Output
Cooling Method
Forced air (Heatsink Blower)
DC Bus Voltage
300 V
Design Number
1
Product
KDA
Rated Current
50 A
Series
2
Speed Command Interface
Digital 16‑bit Parallel