Reenives: Global Leading BLDC Stator Supplier
BLDC Stator: Precision Core for UAV, FPV & High-Performance Brushless Motors
1. What is a BLDC Stator Core? (The Electromagnetic Heart of Brushless Motors)
A BLDC stator core is the stationary laminated magnetic structure of a brushless DC motor, consisting of stacked silicon steel laminations with precision-cut slots for copper windings. When energized by an ESC, the stator generates a rotating magnetic field that drives the permanent magnet rotor — directly determining the motor's torque, efficiency, and thermal behavior.
Reenives manufactures high-quality BLDC stators using non-grain oriented electrical steel (0.15-0.35mm) with advanced C5/C6 epoxy coating — reducing eddy current losses by up to 35% and ensuring high thermal stability for sustained drone and industrial operation.
2. BLDC Stator Classifications
Reenives offers BLDC stators in multiple configurations to meet diverse application requirements:
- By Slot/Pole Config: 9N12P (high RPM racing), 12N14P (balanced torque/speed for UAVs, DLRK), 18N20P (high torque density), 24N28P (heavy-lift / eVTOL).
- By Material Thickness: 0.15mm (ultra-high performance FPV, 6S), 0.20mm (standard high-frequency UAV/industrial), 0.27mm, and 0.35mm (heavy-duty industrial).
- By Core Architecture: Segmented stator cores (modular for easy winding) and integrated circular laminated stacks (one-piece for high-volume production).
- By Insulation Coating: C5 epoxy powder coating (Class H, 180°C) with >2000V dielectric strength; C6 grade for superior thermal conductivity and corrosion resistance.
- By Stacking Method: Interlocking self-bonding (≥0.27mm), laser welding, or epoxy bonding (ultra-thin laminations below 0.25mm).
💡 Reenives specialty: private mould development for custom BLDC stator geometries — optimized for specific UAV, industrial, and automotive applications.
3. Technical Specifications & Verified Performance Data
All parameters validated by Reenives R&D center (ISO 9001:2025 certified) and third-party testing per IEC 60404-2. Independent testing on drone motors with Reenives BLDC stators shows 12% higher torque density and 9°C lower winding temperature after 10-min operation compared to industry standard cores.
| Parameter | Value / Range | Test Standard / Source |
|---|---|---|
| Lamination Thickness | 0.15mm / 0.20mm / 0.27mm / 0.35mm (±0.005mm) | Micrometer / SPC control |
| Core Loss @400Hz/1.0T (0.20mm) | ≤ 8.9 W/kg | Epstein frame (IEC 60404-2) |
| Core Loss @400Hz/1.0T (0.35mm) | ≤ 13.8 W/kg | Epstein frame (IEC 60404-2) |
| Magnetic Flux Density B50 | 1.68T – 1.73T | Hysteresisgraph |
| Stacking Factor (Interlocked) | ≤ 98.2% | Weight / Dimension method |
| Stacking Factor (Bonded) | ≤ 98.6% | Weight / Dimension method |
| Epoxy Coating Dielectric | >2000V, Class H (180°C) | ASTM D149 / IEC 60085 |
| OD Range (BLDC Stator Cores) | 18mm – 260mm (custom) | Reenives engineering capability |
| Torque Density Advantage | +12-18% vs. industry avg | Independent drone motor test |
📐 Data source: Reenives in-house quality lab, 2025–2026. SGS verification report available. Full batch traceability and material certificates.
4. Applications – UAV, FPV & Industrial BLDC Motors
Reenives BLDC stators power critical applications across multiple sectors:
- FPV Racing & Cinematic Drones: 2207, 2306, 2507 stators with 0.15-0.20mm laminations for 45,000+ RPM and 92%+ peak efficiency.
- Commercial UAVs & eVTOL: 12N14P / 18N20P stators for 15-30kg payload with extended flight endurance.
- Agricultural Spraying Drones: High-torque stators with C5/C6 epoxy coating offering 500h+ salt spray resistance.
- Industrial BLDC Actuators & Drives: Precision stators for robotics, servo drives, and automation equipment.
- Electric Vehicle Traction Motors: 48V–800V stators for e-bikes, e-scooters, and light EVs.
5. 5-Step Engineering Selection Guide for BLDC Stator Cores
- Define power, RPM, and torque requirements: For FPV racing (>40,000 RPM), select 0.15-0.20mm laminations. For industrial motors (3,000-15,000 RPM), 0.20-0.35mm is optimal.
- Choose lamination material thickness: 0.15mm for premium ultra-high-speed performance; 0.20mm for standard UAV/industrial; 0.35mm for robust heavy-duty applications.
- Select slot/pole combination: 9N12P for high RPM racing, 12N14P for balanced torque/speed (most common), 18N20P for high torque density.
- Specify insulation and environmental protection: C5/C6 epoxy coating for outdoor UAVs; oil-compatible coating for EV/hybrid applications.
- Request samples and validation: Reenives delivers first-article inspection reports (FAI) and material certificates. Prototype BLDC stator samples ready in 7-10 days after design approval.
💡 Engineering support: Free DFM within 48h and FEA simulation — send your motor spec or drawing to linda_reenives@163.com.
6. FAQ – Critical BLDC Stator Core Technical Pain Points
Reenives recommends 0.15mm ultra-thin silicon steel for FPV motors operating above 40,000 RPM. Core loss is ≤8.9 W/kg @400Hz/1.0T, ensuring minimal heat generation during aggressive racing. For most UAV and industrial applications, 0.20mm offers the optimal balance of performance and cost.
Our interlocked stacks achieve ≥ 98.2% stacking factor, while bonded cores reach 98.6% for maximum torque density. This directly increases magnetic flux density by ~6% compared to 96% stacking factor, improving motor torque density and efficiency.
Reenives epoxy coating (40±5μm thickness) provides >2000V dielectric strength and thermal conductivity >0.85 W/m·K — 2x higher than standard C3 coatings. This reduces inter-lamination hotspot temperatures by 12-15°C during sustained operation, critical for high-power and outdoor applications.
Yes. Reenives supports private mould development for any custom BLDC stator geometry. Submit 2D/3D drawing; MOQ from 500 pcs. Tooling lead time: 20 days; prototype samples: 7 days.
Mold development: 25-30 days. Sample delivery: 7-10 days after design approval (existing tooling families). Mass production: 15-20 days for orders under 10,000 pcs. Global shipping with full export documentation.
7. Summary & Call to Action – Power Your Next-Generation BLDC Motor
🚀 Ready to Optimize Your BLDC Stator Core?
Reenives delivers precision BLDC stator cores with 0.15-0.35mm epoxy-coated steel, optimized geometry, and proven field performance. From FPV racing to industrial automation, we are your strategic BLDC stator partner.
📦 Request Free BLDC Stator Samples & Quote
📧 linda_reenives@163.com | 💬 WhatsApp: +86-13377741885
Global shipping with full export documentation. Virtual factory tour & sample service available. Prototype BLDC stator core samples ready in 7 days.
8. Dongguan Runlu Motor Technology Co., Ltd.
🏭 Reenives – Professional BLDC & Drone Motor Stator Core Manufacturer (Founded 2022)
R&D 100+ patents 3 bases 50,000+ m² 500+ staff
Reenives is a recognized Global Leading BLDC Stator Supplier in China and global markets. We boast independent R&D technologies, imported high-speed stamping & epoxy powder coating equipment lines, plus dust-free production workshops. Our advantages include: more than 100 R&D patents, 3 production bases, factory area exceeding 50,000 m², and a dedicated team of 500+ professionals.
From raw material to finished BLDC stator cores, we support bulk purchasing, private mould development, and rapid sample making. We provide tailor-made perfect solutions for your unique UAV, drone, industrial, and automotive production scenarios.
With 4 years of manufacturing experience, we have solved BLDC stator production challenges for over 1000 enterprises worldwide, including drone OEMs, industrial automation suppliers, and Fortune 500 motor manufacturers. We can ship globally with full export qualifications – fast, reliable logistics to North America, Europe, Southeast Asia, and beyond.
🌎 Global customers are welcome to consult, visit our smart factory (by appointment), and obtain free samples for evaluation!
🔍 Find Reenives easily: Official site: reenives-bldcmotor.com | LinkedIn: Reenives Motor Tech | YouTube: @ReenivesStator | Facebook: @ReenivesMotor
Reenives — Global Leading BLDC Stator Supplier | UAV, FPV & Industrial Motor Core Specialist
Dongguan Runlu Motor Technology Co., Ltd. | www.reenives-bldcmotor.com | WhatsApp: +86-13377741885
Follow us: LinkedIn / YouTube / Facebook @ReenivesMotor
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