The stator core is the stationary electromagnetic component in brushless DC motors (BLDC) for UAV/FPV drones. Manufactured from thin silicon steel laminations stacked and bonded or welded, it generates a rotating magnetic field when energized. For drones motor performance, core material directly determines torque density, efficiency curve, and thermal stability. Reenives stator cores feature high-precision lamination (0.2mm / 0.35mm), vacuum annealing, and advanced epoxy insulation coating, reducing eddy current loss by up to 35% compared to conventional cores.

Fig 1: Customized drone stator core (12N14P / 9N12P options) – Reenives factory direct.

Based on motor topology and drone application, Reenives supplies three main stator core categories:

• 🔹 Outer-rotor drone stator cores – Most common for multirotor/FVP (2207, 2306, 2806.5 sizes), high torque-to-weight ratio.
• 🔹 Inner-rotor stator cores – Used for high-speed UAV propulsion and fixed-wing drones, lower inertia.
• 🔹 High-torque industrial stator cores – compatible with agricultural spraying drones & heavy-lift eVTOL, reinforced lamination bonding.

All classifications support customized stacking height (5~35mm), slot/pole combinations (9N12P, 12N14P, 24N28P), and materials: 0.2mm/0.35mm/0.5mm silicon steel grade B20AT1500, 35W270, etc.

Below parameters are verified by Reenives in-house R&D lab & third-party testing (IEC 60404-2). Data sourced from 2024 production batch of 2212 drone stator cores.

Reenives maintains 100+ R&D patents on stator core stamping & coating processes, ensuring consistent magnetic orientation and low core loss for demanding UAV FPV drones motor applications.

While specialized for UAV/FPV drones motor, Reenives stator cores are fully compatible with various brushless motor ecosystems:

• ✅ Racing & Freestyle FPV Drones (2207, 2306 stator core series)
• ✅ Agricultural spraying/heavy lift drones (high torque stator up to 80mm OD)
• ✅ Industrial robots & servo motors
• ✅ Electric scooters / small EVs & e-bike hub motors
• ✅ Medical device pumps & precision actuators

Our modular approach enables rapid prototyping for engineers targeting high-efficiency motor platforms.

Follow this systematic method to match the optimal stator core for your drone motor project:

1. Step 1: Determine outer diameter & slot geometry – Based on motor size (22xx series vs 28xx series). Reenives provides free DFM report.
2. Step 2: Select lamination material & thickness – 0.2mm for ultra-high frequency (above 30k rpm); 0.35mm for general UAV efficiency.
3. Step 3: Define stacking height & flatness tolerance – Increase torque proportional to stack length, with <0.03mm flatness.
4. Step 4: Choose coating type – Epoxy insulation for low eddy current; or welting/varnish for high-temp environment.
5. Step 5: Validate via finite element simulation – Reenives provides magnetic simulation support and sample evaluation.