KDA 3.2-050-3-LQI-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 3.2-050-3-LQI-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 and supports speed command values via a SERCOS interface. The drive operates in ambient temperatures from 5 to 45 degrees Celsius and can be installed up to 1000 meters above sea level.
Internal Product Review
The KDA 3.2-050-3-LQI-W1 spindle drive from Bosch Rexroth Indramat features a forced cooling system with a mounted heatsink blower powered by a 220V AC source for reliable thermal management. It delivers a rated current of 50 A and accepts speed command values via SERCOS interface for precise control. This unit stands out for its efficient cooling and high current capacity.
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 3.2-050-3-LQI-W1 is a spindle drive produced by Bosch Rexroth Indramat within the KDA Spindle Drives series. It is installed in multi-axis machining centers and turning equipment to regulate high-speed motor spindles. The unit converts a regulated 300 VDC bus into three-phase output while coordinating velocity data through a SERCOS fieldbus for precise metal-cutting operations.
The inverter stage is designed for a continuous output of 50 A, so connected spindle motors can draw substantial current without derating during heavy removal passes. Its internal power section operates from a regulated link of 300 VDC that originates from a shared supply module, giving consistent dynamic headroom for acceleration and deceleration. Cooling is provided by a drive-mounted blower that is energized from an auxiliary line of 220 V/50-60 Hz, so heat sink airflow remains independent of spindle speed during low-rpm machining. This air stream uses forced cooling, which helps keep the IGBTs within their temperature limits in enclosed cabinets. Motion commands arrive through a SERCOS interface, allowing synchronized speed loops alongside other axes on the fiber-optic ring. An incremental encoder output is available as a non-isolated differential pair so external controllers can receive real-time position feedback without additional converters.
A mounted heat sink blower pulls air directly across the fin pack, making the drive usable in ambient temperatures from 5 to 45 degrees Celsius without external ducting. Operation is permitted up to 1000 m above sea level, and higher altitudes reduce cooling effectiveness and require current derating. The auxiliary feedback path is provided as an incremental encoder output, which supports fine speed trimming if the primary SERCOS loop is unavailable. The drive is Series 3 and Version 2.
