The rotor and stator form the complete electromagnetic circuit in a brushless DC motor. The stator is the stationary laminated core with copper windings that generates a rotating magnetic field, while the rotor is the rotating part containing permanent magnets (or laminated stacks) that converts magnetic field into mechanical torque. For drone propulsion systems, precision-matched rotor and stator laminations directly determine thrust-to-weight ratio, thermal stability, and flight endurance.

Reenives manufactures high-quality rotor stator laminations using non-grain oriented silicon steel (0.20mm/0.35mm) with advanced epoxy powder coating – reducing eddy current losses by up to 38% and ensuring perfect magnetic circuit alignment.

Reenives tailors both stator and rotor laminations based on geometry, material grade, and insulation – ensuring perfect electromagnetic matching for your motor design.

• Stator Slot/Pole Config: 9N12P (high RPM racing), 12N14P (balanced torque/speed for UAVs), 18N24P (high torque density), 24N28P (heavy-lift / eVTOL).
• Rotor Type: Surface-mounted magnet rotor / Interior IPM rotor lamination.
• Material Grade: 0.20mm (high-frequency FPV/UAV) / 0.35mm (general industrial).
• Coating: Epoxy powder (Class H, 180°C), ≥1800V dielectric strength.

💡 Reenives specialty: private mould development for matched rotor-stator sets — optimized for your unique motor design with perfect air gap alignment.

All parameters validated by Reenives R&D center (ISO 9001:2025 certified) and third-party testing per IEC 60404-2. Critical for UAV, FPV, and industrial motor designers.

📐 Data source: Reenives internal quality management + Third-party verification available upon request.

Reenives rotor stator matched sets power critical applications across multiple sectors:

• FPV Racing & Cinematic Drones: 2207, 2306, 2507 stator-rotor sets with ultra-low inertia for instant throttle response.
• Commercial UAVs & eVTOL: 12N14P / 18N20P matched sets for 15-30kg payload with extended flight endurance.
• Agricultural Spraying Drones: High-torque matched sets with dust/water-resistant epoxy coating.
• Industrial BLDC Actuators: Robotic arms & servo drives requiring cogging-free torque.
• E-mobility & E-bike Hub Motors: Universal brushless motor platforms.

1. Define motor outer diameter and stack length: Based on torque and power targets (e.g., 28mm OD for 5-inch FPV drone).
2. Choose lamination material thickness: 0.20mm for high-frequency UAV (40-80kHz PWM) / 0.35mm for robust industrial motors.
3. Select slot/pole combination: 9N12P for high RPM, 12N14P for balanced torque/speed, 18N20P for high torque density.
4. Specify insulation and matching tolerance: Epoxy coating for general use; ±0.015mm matched stack tolerance for optimal air gap.
5. Request samples and validation: Reenives delivers matched rotor-stator sets with first-article inspection reports (FAI) and material certificates.

💡 Engineering support: Free DFM within 48h — send your motor spec or drawing to linda_reenives@163.com.