KDA 3.1-150-3-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 3.1-150-3-DQD-W1 is a spindle drive from the KDA Spindle Drives series. It features a rated current of 150 Amps and operates with a DC supply voltage of 300 VDC. The drive uses a mounted heatsink blower for forced cooling and supports digital position and speed command values.
Internal Product Review
The KDA 3.1-150-3-DQD-W1 spindle drive from Bosch Rexroth Indramat delivers a rated current of 150 A and operates on a 300 VDC supply, making it well-suited for demanding spindle applications. Forced cooling with a mounted heatsink blower ensures reliable thermal management, supporting operation in ambient temperatures up to 45°C. The digital 16-bit parallel speed command interface further enhances precision, positioning this drive as a dependable choice for high-performance machining environments.
Have a part to sell?
Wake Industrial Warranty
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The KDA 3.1-150-3-DQD-W1 is a spindle drive manufactured by Bosch Rexroth Indramat and assigned to the KDA Spindle Drives series. In automated machining cells, the unit converts DC bus energy into three-phase power that regulates the speed and torque of high-frequency motorized spindles, allowing coordinated cutting, drilling, or grinding cycles under CNC control. Hardware index 3 indicates the internal board revision used in this product generation. It accepts motion instructions directly from the higher-level controller via dedicated digital lines, eliminating the need for analog conversion hardware. This arrangement helps the drive respond quickly to commanded spindle changes during tightly coordinated machining operations.
This drive is energized from a common DC link at 300 VDC, and the internal inverter stages modulate that bus to supply the spindle windings. A continuous output of 150 A supports large-frame motors without derating during sustained metal-removal passes. Its integral blower is fed by a separate single-phase line rated at 220 V/50–60 Hz, so the cooling circuit does not rely on the DC bus for fan power. Velocity references arrive through a digital 16-bit parallel interface, giving the numerical control fine speed resolution. Thermal loads are removed through a mounted heatsink blower that pushes air directly across the IGBT assembly. The digital reference path also helps maintain accurate commanded speed without relying on an analog input stage.
The cooling method is forced cooling, so airflow remains present regardless of spindle load and helps keep semiconductor temperatures within limits. The permitted ambient range is 5 to 45 °C, and the unit can operate at elevations up to 1000 m above sea level. These installation limits help preserve current capability where reduced air density would otherwise lower cooling performance. Alongside the speed channel, a digital position command value port lets the CNC issue precise phase-synchronous positioning requests for orient and thread-cut modes. This supports spindle indexing functions that must align the shaft to a controlled angular position before the next machine step begins.
