KDA 2.1-050-3-AQ0-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 2.1-050-3-AQ0-W1 is a spindle drive from the KDA Spindle Drives series, featuring a rated current of 50 Amps with a 300 VDC supply voltage. It operates using forced cooling through a mounted heatsink blower and accepts an analog speed command value. The drive is designed to work in ambient temperatures from 5 to 45 degrees Celsius and at elevations up to 1000 meters above sea level.
Internal Product Review
The KDA 2.1-050-3-AQ0-W1 spindle drive from Bosch Rexroth Indramat delivers reliable operation with a rated current of 50 A and a DC supply voltage of 300 VDC. Forced cooling is efficiently managed by a mounted heatsink blower powered by a 220V AC source. This model performs well within an ambient temperature range of 5 to 45°C, making it an excellent choice for demanding spindle drive applications.
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Product Description:
The KDA 2.1-050-3-AQ0-W1 spindle drive is manufactured by Bosch Rexroth Indramat as part of the KDA Spindle Drives series. It serves as the axis power module that links a supply unit with a high-speed spindle motor, providing regulated torque and speed for metal-cutting or drilling stations in automated machine tools. By translating the controller’s velocity commands into controlled armature currents, the unit supports precise spindle acceleration profiles and repeatable finishing passes. This operating role helps the spindle hold commanded speed as cutting load changes during drilling, milling, and similar machining cycles. Integrated fault diagnostics issue alarm codes for overcurrent, overtemperature, and supply irregularities, helping prevent hardware damage.
Internally, the drive is energized from a DC link of 300 VDC, and its power section is rated for a continuous output of 50 A. A mounted blower pushes air across the fin stack through a forced cooling arrangement, and the blower itself is supplied from an auxiliary line rated at 220 V 50–60 Hz. Speed reference data reach the control board as an analog voltage, enabling direct coupling with legacy CNC cards. This input method supports straightforward speed-command wiring in systems that still use voltage-based control signals. Because no additional interface option is installed, fieldbus or digital encoder expansion requires separate add-on hardware.
The drive is intended for continuous operation from 5 to 45 °C ambient temperature, and altitude is limited to 1000 m above sea level so the cooling path can work as intended. The blower and fins are packaged as a single mounted heat sink blower, which keeps airflow aligned with the power components and helps reduce panel depth. The unit is identified as Series 2. This series code indicates the product generation used for the drive, and it distinguishes the unit within the KDA line.
