KDA 3.2-050-3-AYD-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.2-050-3-AYD-W1 is a spindle drive from the KDA Spindle Drives series. It features a rated current of 50 Amps and operates on a DC supply voltage of 300 VDC. The drive uses a mounted heatsink blower for forced cooling, with an AC blower source of 220V at 50-60Hz.
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Product Description:
The Bosch Rexroth Indramat KDA 3.2-050-3-AYD-W1 belongs to the KDA Spindle Drives series and is used as a closed-loop power module for high-speed machine tool spindles. Within an automation cell, it converts energy from a shared DC link into controlled three-phase output so drilling, milling, and grinding spindles can accelerate, decelerate, and hold speed accurately. This arrangement lets the spindle respond quickly to changing machining loads while maintaining the commanded speed during material engagement. It is suited for applications that require stable rotational control during both continuous cutting and positioning moves.
The drive is powered from a DC bus of 300 VDC, which must be supplied by the central power unit. A continuous output capability of 50 A supports medium-frame spindle motors under nominal load. Thermal management relies on an auxiliary blower supplied with 220 V at 50/60 Hz, so the heat sink receives constant airflow independent of spindle speed. Because the blower operates separately from motor rotation, cooling stays consistent during low-speed positioning and at standstill. Speed regulation uses an analog input, while a digital position command value supports exact spindle orientation for tool changes or thread-cutting sequences.
The unit can operate at ambient temperatures from 5 to 45 °C. A mounted heat sink blower directs air across the rear cooling fins, and forced cooling helps keep thermal resistance low when cabinet airflow is limited. Installation is limited to 1000 m above sea level so reduced air density does not lower cooling performance. For synchronized motion tasks, the drive also provides a second encoder input and a synchronous input channel so spindle feedback can be shared with the CNC. The extra feedback path supports coordinated orientation functions where the control must align spindle position with axis movement. The product is series 3 and version 2.
Frequently Asked Questions about KDA 3.2-050-3-AYD-W1:
Q: What type of cooling system does the KDA 3.2-050-3-AYD-W1 spindle drive have?
A: The KDA 3.2-050-3-AYD-W1 uses a mounted heatsink blower for cooling, employing forced cooling to maintain optimal operating temperatures.
Q: What is the rated output current for the KDA 3.2-050-3-AYD-W1 spindle drive?
A: This spindle drive operates with a rated current of 50 A, supporting high-power applications.
Q: What DC supply voltage is required for the KDA 3.2-050-3-AYD-W1 spindle drive?
A: The KDA 3.2-050-3-AYD-W1 accepts a DC supply voltage of 300 VDC.
Q: What is the ambient temperature range for safe operation of the KDA 3.2-050-3-AYD-W1?
A: The ambient temperature operating range for this model is 5 to 45 degrees Celsius.
Q: What AC source is required for the heatsink blower of the KDA 3.2-050-3-AYD-W1?
A: A dedicated AC source of 220V at 50-60Hz is needed to power the heatsink blower on this spindle drive.
