Product Description:

The IL18100A3TRC1 coil assembly is produced by Kollmorgen within the IL Ironless DDL Motors series. Designed for integration into direct-drive linear stages, the unit replaces ballscrews or belts with a contact-free electromagnetic drive. The ironless winding eliminates cogging so feedback loops can achieve fine contouring and smooth velocity profiles in pick-and-place machines, PCB assembly lines, and photolithography equipment. Because the moving element carries only the copper windings and flying leads, moving mass is minimized, improving acceleration, settling performance, and reducing wear in high-throughput automation.

During continuous operation, the coil delivers 211 N while drawing 3.7 Arms. This output reflects its 57.0 N/Arms force constant, so commanded current can be related directly to produced force. Current reaches its target in 0.48 ms, a short electrical time constant that favors high-bandwidth control. Copper impedance of 4.9 Ω L-L restricts I²R heating, and the back-EMF constant is 46.6 V peak per m/s, which indicates the drive voltage needed at speed. A motor constant of 21.0 N√W links force to thermal load, while a thermal resistance of 0.29 °C/W indicates heat flow to the surroundings. The 1.10 kg mover is supplied with a 400 mm cable finished as flying leads, and a PTC sensor provides temperature feedback.

Dynamic events are managed by an inductance of 2.33 mH L-L, which smooths current transitions without delaying commanded force. For short bursts, the assembly can produce up to 1200 N, provided the amplifier supplies a peak current of 21.0 Arms. Safe operation during these overloads is bounded by a winding limit of 130 °C, so duty cycle should be reduced as temperature approaches this ceiling. The low inductive reactance keeps voltage demand moderate, allowing the mover to reach peak thrust quickly for indexing axes, rapid-settling stages, or gaps that must close in milliseconds.