KDA 2.1-050-3-DYI-W1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The Bosch Rexroth Indramat KDA 2.1-050-3-DYI-W1 is a spindle drive from the KDA Spindle Drives series with a rated current of 50 Amps and a DC supply voltage of 300 Volts. It features forced cooling using a mounted heatsink blower that operates on a 220V AC source, and supports digital speed command values with 16-bit parallel input. The drive is suitable for ambient temperatures from 5 to 45 degrees Celsius and installation elevations up to 1000 meters above sea level.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The KDA 2.1-050-3-DYI-W1 is a spindle drive module produced by Bosch Rexroth Indramat and assigned to the KDA Spindle Drives series. As a closed-loop power stage, it regulates torque and speed for high-precision machine-tool spindles, linking the numerical control to the motor while handling current modulation and feedback processing. By converting a rectified DC supply into a three-phase output, the unit supports rapid spindle acceleration, controlled deceleration, and stable holding behavior for milling, drilling, and grinding centers. The drive is intended for precision spindle axes where smooth speed regulation and repeatable response are important during both cutting and positioning routines.
The power section draws up to 50 A of output current, which is the maximum continuous phase current available to the connected spindle motor. Its power electronics are supplied from a bus of 300 VDC, which keeps the modulation stage within its intended operating range. Speed references reach the control board as a 16-bit parallel digital command, allowing fine command resolution for spindle speed control. This command format helps the control system make small speed adjustments without coarse stepping at the spindle. To remove switching losses, the drive uses forced cooling, and the integrated blower is supplied from 220 V/50-60 Hz auxiliary power.
Additional feedback handling is available through the unit’s second encoder input and synchronous input, giving the controller an extra incremental channel for spindle orientation or master-slave coupling. That arrangement supports coordinated motion where the spindle must align with another rotating axis. Thermal management is supported by a mounted heat sink blower that directs airflow across the IGBT stack and permits operation in ambient temperatures from 5 to 45 °C without current derating. Installation is permitted up to 1000 m above sea level. At higher elevations, reduced air density can limit cooling performance and may require a lower current load.
Frequently Asked Questions about KDA 2.1-050-3-DYI-W1:
Q: What AC power does the KDA 2.1-050-3-DYI-W1 spindle drive's heatsink blower need?
A: The KDA 2.1-050-3-DYI-W1 requires a 220V, 50-60Hz AC source for its heatsink blower.
Q: How does the KDA 2.1-050-3-DYI-W1 spindle drive manage heat dissipation?
A: This spindle drive uses a mounted heatsink blower for forced cooling.
Q: What is the rated current rating of the KDA 2.1-050-3-DYI-W1?
A: The rated current for the KDA 2.1-050-3-DYI-W1 is 50 A.
Q: How is the speed command value input to the KDA 2.1-050-3-DYI-W1 spindle drive?
A: It accepts a digital speed command value through 16-bit parallel input.
Q: What type of additional interface is featured on the KDA 2.1-050-3-DYI-W1?
A: This model includes an incremental encoder output as an additional interface.
