Product Description:

The IL18050A2TRC1 is an ironless direct-drive linear motor coil from Kollmorgen's IL Ironless DDL Motors series. This component acts as the moving primary in a planar stage, producing thrust without mechanical transmission so it suits high-precision semiconductor or inspection axes. When paired with a matched magnet track and servo drive, it converts phase current into linear force while eliminating cogging associated with iron-core designs.

At thermal equilibrium, the coil delivers a continuous thrust of 131 N when supplied with a phase current of 3.1 Arms. That operating point reflects the coil's force constant of 42.8 N/Arms, which indicates how much incremental force the coil produces for each commanded ampere. For rapid moves or settling shocks, the winding can generate up to 600 N by tolerating a short-duration peak current of 14.0 Arms. The moving element weighs 0.72 kg, reducing inertial loading on the carriage. A 400 mm lead set facilitates direct connection to the drive, while the insulation system is rated for 230 VAC to withstand common bus voltages. The motor constant of 13.8 N/√W links force output to copper loss, and a thermal resistance of 0.419 °C/W indicates how quickly that loss raises winding temperature. Operating limits are capped by a 130 °C maximum coil temperature, and an embedded PTC sensor supplies temperature feedback to the controller.

Dynamic performance is influenced by electromagnetic parameters. The coil develops a back electromotive force of 34.9 Vpeak/m/s L-L, so the drive must accommodate that voltage during high-speed moves. Its inductance of 2.25 mH L-L and phase resistance of 6.4 Ω L-L produce an electrical time constant of 0.35 ms; together these values describe current rise behavior and set current-loop bandwidth. Proper drive tuning uses these figures to prevent overshoot while still exploiting the high force density of the ironless topology.