KDE7215XF-135 brushless electric motor for heavy-lift multirotor UAS

The KDE7215XF-135 is a brushless electric motor for heavy-lift multirotor UAS, made by KDE Direct as part of its XF multi-rotor motor series. It is designed in the USA and manufactured in China, and it targets large electric multirotor platforms that need efficient, low-vibration propulsion for lifting work.

KDE Direct designed the motor for performance and durability in multi-rotor and UAS heavy-lift applications. The windings are high-grade solid-core copper wire with a continuous high-temperature rating, intended for failure-free operation in extreme climates. The stator uses thin Japanese-built silicon-steel laminations and Kevlar tie-wraps for efficiency, and the rotor runs on triple-bearing support, which the maker describes as maintenance-free for hundreds of hours of flying. The magnets are neodymium, and the endbells are clear-anodized, mirror-polished CNC parts.

The key ratings are a continuous power of 2.915 kW and a continuous current of 45 A, with a supply range of 22.2–60.9 V. That range lets designers use the motor on battery packs from LiPo to LiHV chemistry. The continuous ratings assume consistent open airflow across the windings, so installers should plan the airflow path through the motor. The figures are guidelines for normal conditions, and air temperature and humidity can shift the limits. The motor itself has a mass of 0.555 kg, before the lead wires and connectors are counted.

The motor is a three-phase brushless unit and needs an external electronic speed controller; it has no integrated controller. KDE Direct recommends its UAS HVC multi-rotor ESC series, with its UVC HE multi-rotor series as an alternate, and its dual-blade propellers for the airframe. A propeller bracket assembly mounts on the shaft, and the kit adds female bullet connectors and mounting screws in several sizes. The motor leads are silicone wire with bullet connectors pre-soldered to them, so wiring to a matching ESC is simple. A universal mounting pattern with threaded holes on both the propeller side and the airframe side suits a wide range of multi-rotor and UAS frames. Design geometry, mounting pattern and hardware drawings are published, together with STEP and STL models. Replacement shaft and bearing sets are available as spare parts.

No regulatory or airworthiness certifications are listed for this motor. It is a professional component for uncrewed systems, and buyers who need qualification evidence should request it from KDE Direct. Performance test data sheets recorded with KDE Direct propellers are published with the product.

Typical applications are heavy-lift electric multirotor UAS and other multi-rotor platforms that need efficient, vibration-free propulsion, including operation in extreme climates, as supported by the winding temperature rating.