KDA 3.2-100-3-A0S-U1

The KDA 3.2-100-3-A0S-U1 from Bosch Rexroth Indramat is part of the KDA Spindle Drives series, designed to deliver reliable main spindle control in demanding industrial environments. Featuring a Current Rated capacity of 100 A and a Continous Current rating of 70 A, it ensures sustained torque and speed performance over extended cycles. With a Rated Voltage of 300 V, this drive controller supports high-power spindle applications while maintaining precise control. Its primary function centers on high-stiffness spindle operation, precise positioning and an extensive speed range for machining, milling and drilling tasks.

The KDA 3.2-100-3-A0S-U1 is characterized by an integrated DC bus voltage of 300 V and a robust forced cooling system achieved via a heatsink blower. The drive accepts an Analog +/- 10V Speed Command Value input for smooth acceleration and deceleration profiles. Rated for an attached blower voltage of AC 50–60 Hz, this controller maintains stable operating temperatures even under peak load. Notably, the drive includes an Aux. Encoder Input labeled WithoutAux. Interface1, simplifying integration with a broad range of spindle feedback systems. Its compact design and high continuous power density set it apart from conventional spindle drives.

Built to comply with industry demands for compatibility and durability, the KDA controller’s design ensures seamless integration with Bosch Rexroth servomotors and spindle assemblies. The forced cooling strategy via the heatsink blower enhances longevity and reduces thermal stresses, contributing to reliable performance in high-duty-cycle operations. By delivering consistent continuous current and precise speed regulation, this spindle drive maximizes machining throughput and accuracy. In industrial applications such as CNC machining centers and automated milling systems, the KDA 3.2-100-3-A0S-U1 drive facilitates superior productivity, reduced downtime and optimal process efficiency.