Product Description:

The KDA 3.2-050-3-D0D-W1 spindle drive is produced by Bosch Rexroth Indramat and belongs to the KDA Spindle Drives series. Within the type code, it is classified as Series 3, Version 2. As a spindle drive, it converts regulated DC power into controlled three-phase output that determines the speed and torque of high-speed machining spindles in CNC equipment. The unit is designed to sit inside a coordinated drive cabinet, where it interfaces with an Indramat controller to provide precise rotational control during milling, drilling, and grinding tasks on automated production lines. It works with the control system to manage acceleration, deceleration, and steady spindle speed during machining.

Electrically, the module is powered from a DC bus that supplies 300 VDC, and it can deliver up to 50 A of continuous output current to the connected spindle motor. Internal electronics and IGBT stages are cooled by a dedicated blower that operates from an auxiliary line rated at 220 V, 50/60 Hz. Airflow passes through a mounted heat sink blower that is integral to the housing. The drive uses forced cooling to maintain component temperatures during rapid acceleration and deceleration cycles. This cooling arrangement supports sustained operation when the spindle runs under demanding duty cycles.

On the control side, speed data reach the drive through a 16-bit parallel digital channel, while an additional port accepts a digital position command value to synchronize spindle orientation with tool changers or position loops. Because the drive does not include a second encoder input, installation wiring remains straightforward. The unit can be mounted in spaces that remain within an ambient range of 5 to 45 degrees Celsius and at elevations up to 1000 m above sea level. These operating conditions support stable performance during normal industrial use.