Product Description:

The KDA 3.2-100-300-A00-U1 spindle drive is produced by Bosch Rexroth Indramat and belongs to the KDA Spindle Drives series. It is intended for machine-tool and general CNC applications where a drive must convert regulated DC bus power into the controlled three-phase output needed by a spindle motor. In operation, the unit manages closed-loop speed and torque regulation so the spindle can maintain stable performance during cutting, drilling, and grinding tasks. Because it works with a regulated supply module, it can support steady spindle behavior during startup, speed holding, and changing mechanical load across repeated machining cycles.

The drive requires a DC bus supply of 300 VDC and can deliver a continuous phase current of 100 A. Heat is removed by forced cooling, so external airflow across the heat sink is necessary during continuous operation. The permitted ambient temperature range is 5 to 45 °C, which supports normal installation in industrial control cabinets when ventilation is maintained. Use is allowed at elevations up to 1000 m above sea level without derating, provided the cooling path remains clear and the drive is installed where intake and exhaust air are not blocked.

The product is assigned to Series 3 and is built as version 2. These identifiers distinguish the generation and revision used for this model and help separate it from earlier units in the same platform. The drive is intended for integration with compatible spindle motors and control hardware that use the same operating concept, so it fits systems that require regulated spindle speed, responsive torque control, and repeatable behavior during changing process demand. The unit is suited to cabinet-mounted automation equipment that needs predictable response during acceleration, steady running, and routine spindle operation throughout daily production.