KDA 3.2-050-3-DQD-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 3.2-050-3-DQD-W1 is a spindle drive from the KDA Spindle Drives series. It features a rated current of 50 Amps and operates with a DC supply voltage of 300 VDC. The drive uses forced cooling with a mounted heatsink blower and supports digital speed and position command values.
Internal Product Review
The KDA 3.2-050-3-DQD-W1 spindle drive from Bosch Rexroth Indramat features a rated current of 50 A and is equipped with a forced cooling system using a mounted heatsink blower. This unit accepts digital position and speed command values, making it highly suitable for precision spindle control. Reliable operation is ensured within a 5 to 45°C ambient temperature range, highlighting its effectiveness in demanding environments.
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Product Description:
Bosch Rexroth Indramat manufactures the KDA 3.2-050-3-DQD-W1, a spindle drive from the KDA Spindle Drives series. This device supplies controlled three-phase power to high-speed machine-tool spindles, converting DC link energy into regulated motor currents for precision machining tasks in industrial automation. It belongs to series release 3.2 and uses Indramat's third-generation control architecture. In machine tools, it regulates spindle current quickly enough to support commanded acceleration, deceleration, and speed holding under changing cutting load.
The drive operates from a DC bus of 300 VDC, so the cabinet power section must maintain that link voltage for stable modulation. Its continuous output current is 50 A, which is the sustained current the spindle windings can receive during operation. Heat is removed by a mounted heat sink blower that directs airflow across the power section instead of depending only on cabinet ventilation. The drive uses forced cooling, which keeps airflow present even when spindle speed is low. The blower is powered from an auxiliary supply of 220 V / 50–60 Hz, which lets cooling continue while the DC bus is discharging after power is removed. Because the cooling air is generated at the drive, thermal performance does not depend entirely on the surrounding enclosure airflow.
The drive is intended for ambient temperatures from 5 to 45 °C, and installation is permitted up to 1000 m above sea level. Speed commands are sent as a 16-bit parallel digital speed reference, while a separate digital position command value input supports coordinated axis motion. These separate command channels suit control systems that issue explicit data words for spindle regulation and coordinated movement. The stated temperature and altitude limits correspond to the cooling capacity available from the blower system.
