KDA 3.2-100-3-L0D-W1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat KDA 3.2-100-3-L0D-W1 is a spindle drive from the KDA Spindle Drives series with a rated current of 100 Amps and a DC supply voltage of 300 VDC. It features a mounted heatsink blower for forced cooling and requires an AC source of 220V at 50-60Hz for the blower. The drive operates within an ambient temperature range of 5 to 45 degrees Celsius and supports a SERCOS speed command interface.
Internal Product Review
The KDA 3.2-100-3-L0D-W1 spindle drive from Bosch Rexroth Indramat delivers reliable performance with a rated current of 100 A and a DC supply voltage of 300 VDC. Forced cooling via a mounted heatsink blower ensures stable operation within an ambient temperature range of 5 to 45 degrees Celsius. This drive is ideal for demanding spindle applications that require efficient cooling and high current capacity.
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Product Description:
The KDA 3.2-100-3-L0D-W1 spindle drive is produced by Bosch Rexroth Indramat within the KDA Spindle Drives series. It functions as a closed-loop power module that regulates motor torque and speed on machine-tool spindles, translating numerical controller commands into calibrated three-phase output. In automated machining cells, the unit provides the high-current switching stage required for rapid acceleration, controlled deceleration, and constant surface-speed machining. It is a Series 3, Version 2 unit.
The internal DC bus accepts 300 VDC, establishing the intermediate circuit from which three-phase spindle power is synthesized. Within those limits, the drive can deliver a continuous armature current of 100 A, so the connected motor must support that level of copper loss and thermal loading. Heat produced by the switching elements is removed through a mounted heatsink blower, and cooling is supported by the specified forced cooling method. The blower is supplied with 220 V at 50/60 Hz, allowing the cooling circuit to operate even before the DC bus is energized. Speed reference data reaches the controller through the SERCOS interface, which provides deterministic fiber-optic communication for velocity loops. Because this variant omits a second encoder input, feedback for spindle orientation is expected only on the primary channel.
The drive is intended for operation in ambient temperatures from 5 °C to 45 °C. Cabinet ventilation must keep inlet air within that range during continuous machining. Installation altitude is limited to 1000 m above sea level so the heatsink blower can maintain sufficient airflow for rated dissipation. Position synchronization commands are transmitted as a digital position command value signal, enabling precise spindle indexing for tool changers and C-axis positioning without analog drift.
