A small BLDC motor stator core is a precision-engineered magnetic lamination stack designed for compact brushless motors typically rated from 80W to 150W. These stators feature outer diameters from 25mm to 55mm, with optimized slot geometries to balance copper fill and flux density. At miniature scales, traditional lamination stacks suffer from high iron loss relative to volume, poor heat dissipation, and winding space limitations. Reenives solves these challenges with ultra-thin 0.20mm high-silicon steel laminations and advanced epoxy powder coating .

Reenives manufactures high-quality small BLDC motor stator cores using non-grain oriented silicon steel (0.20mm/0.27mm) with thin-film epoxy powder coating — achieving core loss ≤11.5 W/kg @1.5T/400Hz and stacking factor >97% .

Reenives offers small BLDC motor stator cores in multiple configurations to meet diverse application requirements :

• By Winding Type: Concentrated winding stator (high torque density, ideal for drone motors) and distributed winding stator (smoother torque, lower cogging for robotic joints).
• By Slot/Pole Config: 9N12P (high RPM racing), 12N14P (balanced torque/speed for small UAVs), 18N20P (high torque density for heavy-lift).
• By Material Thickness: 0.20mm (high-frequency UAV/FPV, mandatory for >20,000 RPM), 0.27mm, and 0.35mm (general industrial).
• By Insulation Coating: C5/C7 epoxy powder coating (Class H, 180°C) with >1800V dielectric strength, thin-film coating (30-50μm) for tight slot geometries.
• By Stacking Method: Interlocking self-bonding (≥0.27mm), laser welding, or epoxy bonding for ultra-thin laminations below 0.25mm.

💡 Reenives specialty: private mould development for custom small BLDC stator geometries — from OD 25mm to 55mm for the 100W power class, with custom slot profiles and skew designs to reduce cogging torque .

All parameters validated by Reenives R&D center (ISO 9001:2025 certified) and third-party testing per IEC 60404-2, with SGS inspection available .

📐 Data source: Reenives in-house R&D lab, 2025. Third-party SGS inspection available upon request. Full batch traceability and material certificates available .

Reenives small BLDC motor stator cores power critical applications across multiple sectors :

• Small UAV Propulsion: 3-inch to 5-inch FPV drones, lightweight camera drones, and agricultural micro-drones.
• Robotic Joint Actuators: Collaborative robots, servo modules requiring 100W BLDC precision torque.
• Medical Infusion Pumps & Ventilators: Quiet, precise brushless motor control with low vibration.
• Gimbal Motors: Camera stabilization with smooth low-speed torque and reduced cogging.
• Portable Power Tools: Cordless drills, electric screwdrivers, and handheld devices.

1. Define torque, speed & power requirements: For drone motors (15,000–30,000 RPM), specify 0.20mm laminations to minimize eddy current losses.
2. Choose lamination material thickness: 0.20mm for high-frequency UAV (20-40kHz PWM) / 0.35mm for robust industrial BLDC motors.
3. Select slot/pole and winding type: 9N12P for high RPM, 12N14P for balanced torque/speed. Concentrated winding for torque density; distributed for smoother operation.
4. Specify coating and stacking method: Epoxy powder coating (thin-film 30-50µm) for tight slot geometries; interlocking for 0.27mm+; epoxy bonding for sub-0.25mm designs.
5. Request samples and validation: Reenives delivers first-article inspection reports (FAI) and material certificates. Prototype samples ready in 7-10 days after design approval .

💡 Engineering support: Free DFM within 48h and FEA simulation support to validate your small BLDC stator design before tooling — send your motor spec or drawing to linda_reenives@163.com.