KDA 2.1-050-3-D00-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-D00-W1 is a spindle drive from the KDA Spindle Drives series with forced cooling by a mounted heatsink blower and a rated current of 50 Amps. It operates on 300 VDC supply voltage and supports a digital 16-bit parallel speed command value. The drive is designed for use in environments with ambient temperatures from 5 to 45 degrees Celsius and can be installed up to 1000 meters above sea level.
Internal Product Review
The KDA 2.1-050-3-D00-W1 spindle drive from Bosch Rexroth Indramat delivers steady performance with a rated current of 50 A and operates on a 300 VDC supply voltage. Forced cooling is achieved through a mounted heatsink blower, supporting continuous operation within a 5 to 45 degrees Celsius ambient temperature range. This spindle drive stands out for its reliable operation in demanding environments.
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Product Description:
The KDA 2.1-050-3-D00-W1 is a spindle drive produced by Bosch Rexroth Indramat as part of the KDA Spindle Drives series. In automated machining centers, this unit regulates three-phase induction or synchronous spindles by converting regulated DC bus power into a variable output that tracks digital speed commands. The drive is intended for cabinet installation, where its built-in heat sink blower and forced-air path support stable operation during continuous high-speed cutting cycles. It is suited for machine tools that need repeatable spindle speed under changing load conditions. By adjusting inverter output in real time, the drive supports steady operation during drilling, milling, and similar machining processes.
The power section delivers a continuous output current of 50 A, allowing the connected spindle motor to reach rated torque without derating. That current is drawn from an intermediate circuit at 300 VDC, so the upstream supply or common DC link must be sized for that level. Thermal energy is removed by forced cooling through a mounted heat sink blower that receives its own single-phase feed of 220 V / 50–60 Hz. Because the cooling fan is powered independently, airflow can remain available even when the main inverter stage is disabled. Velocity setpoints reach the control electronics through a digital 16-bit parallel interface, providing fine resolution for speed control inside the machine.
Installation parameters include an ambient range of 5 to 45 °C and a maximum site altitude of 1000 m above sea level. The unit is version 2 in the series and uses the same cabinet footprint as related models, but it has no additional interface option. It also has no second encoder input, so any added feedback channel must be handled externally when the application requires it. These operating limits should be observed so cooling performance remains consistent in enclosed cabinet installations.
