Industrial automation suppliers have long hesitated to deploy coreless motors in continuous-duty applications due to concerns about heat accumulation in the ironless winding structure. However, a new series of hollow cup motors specifically engineered for collaborative robots (cobots) and pick-and-place actuators has successfully overcome this limitation through multi-layered thermal mitigation strategies.
The newly released product line incorporates three key innovations: first, a rhombus-wound copper coil with increased copper fill factor (up to 68%) reduces resistive losses; second, a thermally conductive epoxy potting compound directly bonds the winding to an aluminum-alloy housing, creating a direct heat extraction path; third, integrated PTC thermistors provide real-time winding temperature feedback to the servo drive, enabling predictive current limiting.
Independent lab testing under simulated factory conditions (ambient 45°C, continuous 70% rated torque) shows surface temperatures stabilizing at just 78°C after two hours—a 40% reduction compared to earlier generation coreless units. This thermal stability unlocks new automation scenarios: high-duty-cycle screwdriving heads, continuous-rotation indexing tables, and dexterous cobot grippers that maintain grasp force precision for multi-shift operations.
Early adopters in electronics assembly report that replacing iron-core stepper motors with these enhanced coreless motors eliminates audible cogging noise, reduces energy consumption per pick operation by 45%, and allows for lighter, more compact end-effector designs. With optional IP54 sealing and 5000-hour bearing life ratings, the series is positioned as a direct upgrade path for manufacturers seeking to improve both throughput and energy efficiency without migrating to more expensive brushless servo systems. Availability is announced for Q3 2026, with sample kits including matched gearheads and encoders offered for pilot testing.
Post time: May-25-2026