KDA 2.1-100-3-LQS-U1

The Bosch Rexroth Indramat KDA 2.1-100-3-LQS-U1 spindle drive belongs to the KDA Spindle Drives series, manufactured by Bosch Rexroth Indramat. This main spindle drive delivers a Rated Current of 100 A and operates with a DC Bus Voltage of 300 V, ensuring robust power delivery for high-load machining operations. Engineered for high stiffness and accurate positioning, it offers an extensive speed range with continuous power output. Its primary function is to control the main spindle in CNC machines and industrial mills, where precise speed regulation and dynamic response are critical for quality surface finishes and tight tolerances.

In terms of technical specifications, the KDA 2.1-100-3-LQS-U1 features a cooling system that is Forced Cooled by Heatsink Blower, supported by an AC Supply Source for Heatsink Blower at 115 VAC. It includes an Aux. Encoder Input designed for 1 V sinusoidal encoders to enhance feedback accuracy, while the Aux. Interface utilizes a Serial Interface RS 232 C for parameterization and diagnostics. The drive accepts a Speed Command Value via a SERCOS - Interface, allowing seamless integration into modern automation networks. The drive’s design is compact (Design 1) and optimized for reliable thermal performance under continuous operation.

Additional features include compatibility with digital servo sensors and advanced motion controllers, maximizing system interoperability. The forced cooling by heatsink blower ensures efficient heat dissipation and long-term durability, reducing the risk of thermal derating during prolonged high-load cycles. The SERCOS interface adheres to open communication standards, facilitating scalable multi-axis synchronization in complex machining centers. By combining high current capacity, precise encoder feedback, and robust cooling, the KDA 2.1-100-3-LQS-U1 provides stable spindle control, enhanced productivity, and improved process reliability for demanding industrial manufacturing environments.