KDA 3.2-100-3-LQI-U1

Product Description:

The KDA 3.2-100-3-LQI-U1 drive from Bosch Rexroth Indramat slots into the KDA Spindle Drives series and brings together power and modern cooling in a sturdy package. This drive holds a rated current of 100A, giving it the strength for high-servo setups in big machining centers or process lines that never get much downtime. Liquid cooling runs right through it, labeled under LQI, and the internal circuit design cuts down on heat even if the work runs nonstop. Rated DC link voltage parks at 300V DC—that's a serious setup for moving plenty of energy without lost efficiency.

One note on handling: the weight sits at 24 kg, and that matches the heavy-duty hardware this model expects as neighbors. Mounting spots want to be prepped for that. Inside, the drive uses a three-phase inverter to make sure motors get fast–on, fast–off action with just the right adjustments at each turn. Power input runs through 3 x 230/400 V AC lines (with an extra supply module on hand, usually), and dynamic braking (complete with quenching circuit, if it's part of the build) manages the stopping and slowdown curve. Connecting up is straightforward thanks to the U1 interface—that means analog inputs plus control card options.

Feedback, always critical for spindle positioning, goes through either encoders or resolvers, chosen based on installed options, which is useful when machinery or plant layouts mix part types. The outside protects up to IP 10–20, so proper installation inside cabinets is recommended for actual shop service. Dimensions usually run about 530mm x 150mm x 350mm, shifting just a little if the options pile up. Whether it’s routing in automation, or keeping CNC gear urgent, this model slots in reliably. Everything lines up with what Bosch Rexroth Indramat aims for—solid drive control, flexible cooling, and straightforward support for precise automation.