KDA 2.1-100-3-D0S-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 2.1-100-3-D0S-W1 is a spindle drive in the KDA Spindle Drives series. It features a rated current of 100 Amps and operates with a 300 VDC supply voltage. The drive uses forced cooling via a mounted heatsink blower and includes a serial interface (RS 232 C) for connectivity.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The KDA 2.1-100-3-D0S-W1 is a spindle drive module produced by Bosch Rexroth Indramat within the KDA Spindle Drives series. Acting as a dedicated power stage, it transforms a regulated DC link into three-phase output for machine-tool spindles, enabling accurate speed and torque control during milling, drilling, or grinding. Integrated with Indramat supply units, the drive delivers the current capacity and feedback handling needed for dynamic spindle positioning in automated production lines. It is intended for spindle applications that must accelerate, decelerate, and hold commanded speed reliably as cutting load changes during operation.
The KDA 2.1 unit derives its main power from a 300 V DC bus supplied by the machine’s common supply module. This arrangement supports closed-loop regulation of high-speed induction or synchronous spindles and keeps the power stage tied to the shared DC link used by the machine. Continuous load capability reaches 100 A, providing current capacity for demanding cutting cycles without immediate thermal limitation. The heat sink blower is powered by an independent line at 220 V, 50–60 Hz, and the separate supply helps maintain airflow whenever the cooling circuit is active. The resulting airflow provides forced cooling, which helps keep semiconductor temperature stable during extended duty cycles. For setup and diagnostics, a RS-232-C serial interface is available for parameter exchange with a PC or PLC. The unit does not include a second encoder input, so spindle position feedback is handled through the primary resolver or encoder channel.
The drive operates in ambient temperatures from 5 to 45 °C, which suits standard industrial indoor conditions. It can also be used at elevations up to 1000 m above sea level without output reduction. Speed references are issued as a 16-bit digital speed command, allowing fine adjustment of spindle velocity across the control range. Thermal extraction is supported by a mounted heat sink blower, which moves air across the finned cooling surface and assists cabinet airflow. That cooling path helps the drive maintain stable operation during long machining cycles and repeated speed changes.
Frequently Asked Questions about KDA 2.1-100-3-D0S-W1:
Q: What kind of cooling does the KDA 2.1-100-3-D0S-W1 spindle drive use?
A: The KDA 2.1-100-3-D0S-W1 operates with a forced cooling system using a mounted heatsink blower.
Q: What is the rated current of the KDA 2.1-100-3-D0S-W1 drive?
A: The rated current for this spindle drive is 100 A.
Q: What is the AC source specification for the heatsink blower in the KDA 2.1-100-3-D0S-W1?
A: The AC source required for the heatsink blower is 220V operating at 50-60Hz.
Q: How are speed command values supplied to the KDA 2.1-100-3-D0S-W1 drive?
A: This model communicates speed command values digitally using a 16-bit parallel interface.
Q: What is the acceptable ambient temperature range for the KDA 2.1-100-3-D0S-W1?
A: The ambient temperature range for proper operation is 5 to 45 degrees Celsius.
