Reenives: Global Leading Small Brushless Motors Stator Core Supplier
Small Brushless Motors Stator Core: Global Leading Precision for Micro Drones, FPV & Robotics Propulsion
- 1. What are Small Brushless Motors Stator Cores?
- 2. Small Brushless Stator Classifications
- 3. Technical Specs & Verified Data
- 4. Micro Drones, FPV & Robotics Applications
- 5. 5-Step Engineering Selection Guide
- 6. FAQ – Critical Technical Pain Points
- 7. Summary & Call to Action
- 8. Dongguan Runlu Motor Technology Co., Ltd.
1. What are Small Brushless Motors Stator Cores? (The Compact Heart of Micro Propulsion)
Small brushless motors stator cores are the stationary laminated magnetic structures designed for miniature brushless motors — typically ranging from 8mm to 30mm in outer diameter. These cores power micro drones (whoops), FPV cinewhoops, robotic joints, and handheld gimbals . The stator core consists of stacked silicon steel laminations with precision-cut slots for copper windings, and its quality directly determines the motor's torque, efficiency, and thermal behavior .
Reenives manufactures high-quality small brushless motors stator cores 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 micro drone and robotics operation .
2. Small Brushless Motors Stator Classifications
Reenives offers small brushless motors stator cores in multiple configurations to meet diverse micro application requirements :
- By Motor Size (OD): 8mm (micro whoops, 1S), 10mm, 14mm (2S whoops), 22mm (3-4S FPV), 28mm (5-inch FPV) .
- By Slot/Pole Config: 9N12P (high RPM, micro racing), 12N14P (balanced torque/speed for whoops & micro FPV) .
- By Material Thickness: 0.15mm (ultra-high performance micro FPV, 2-3S), 0.20mm (standard micro UAV), 0.27mm (budget), and 0.35mm (heavy-duty industrial micro motors) .
- By Insulation Coating: C5 epoxy powder coating (Class H, 180°C) with >2000V dielectric strength; C6 grade for superior thermal conductivity .
- By Stacking Method: Epoxy bonding (essential for 0.15mm ultra-thin laminations); interlocking self-bonding (≥0.27mm) .
💡 Reenives specialty: private mould development for custom small brushless stator geometries — optimized for specific micro drone and robotics platforms from 1S whoops to 6S FPV racers .
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 micro drone motors with Reenives stator cores shows 12% higher torque density and 8-12°C lower winding temperature after sustained hover 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 |
| Concentricity (ID to OD) | ≤0.02mm | Vision measurement |
| Burr Height (Max) | ≤0.015mm | Optical comparator |
| Epoxy Coating Dielectric | >2000V, Class H (180°C) | ASTM D149 / IEC 60085 |
| OD Range (Micro Cores) | 8mm – 35mm | Reenives engineering capability |
📐 Data source: Reenives in-house quality lab, 2025–2026. SGS verification report available. Full batch traceability and material certificates .
4. Applications – Micro Drones, FPV & Robotics
Reenives small brushless motors stator cores power critical micro applications across multiple sectors :
- Micro Drones & Tiny Whoops: 0703, 0802, 1103, 1404 stators for 1S-2S indoor FPV and cinewhoops — delivering exceptional efficiency at 15,000-30,000 RPM .
- FPV Racing & Freestyle: 2207, 2306, 2507 stators with 0.15-0.20mm laminations for 45,000+ RPM and 92%+ peak efficiency .
- Robotic Joint Actuators: Compact, high-torque stators for collaborative robot arms, humanoid robotics, and servo modules requiring precision motion control .
- Gimbal & Camera Stabilization: Ultra-low cogging stators for smooth, precise camera control in micro-gimbals .
- Portable Medical Devices: 8-14mm stators for surgical tools, infusion pumps, and diagnostic equipment requiring quiet, reliable operation .
5. 5-Step Engineering Selection Guide for Small Brushless Stator Cores
- Define motor size and power requirements: For micro whoops (<3-inch props), select 8-14mm stators. For 3-4 inch FPV, 22-28mm stators with 0.15-0.20mm laminations are optimal .
- Choose lamination material thickness: 0.15mm for premium ultra-high-speed micro FPV (6S); 0.20mm for standard micro drone/robotics; 0.27mm for budget applications .
- Select slot/pole combination: 9N12P for high RPM racing, 12N14P for balanced torque/speed (most common for micro drones & robotics) .
- Specify insulation and environmental protection: C5/C6 epoxy coating for micro drones; C3 organic for indoor robotics .
- Request samples and validation: Reenives delivers first-article inspection reports (FAI) and material certificates. Prototype small brushless 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 Small Brushless Motors Stator Core Technical Pain Points
Reenives recommends 0.15mm ultra-thin silicon steel for micro FPV motors operating above 30,000 RPM. Core loss is ≤8.9 W/kg @400Hz/1.0T, ensuring minimal heat generation during aggressive micro drone racing . For most micro drone and robotics 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 micro drone flight efficiency .
Reenives epoxy coating (30-40μm thickness for micro stators) 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 8-12°C during sustained micro drone hovering, critical for whoop-class drones and outdoor robotics. C6 grade offers superior corrosion resistance for maritime micro robotics .
Yes. Reenives supports private mould development for any custom small brushless stator geometry, from 8mm micro cores (0703, 0802) to 35mm stators . Submit 2D/3D drawing; MOQ from 500 pcs. Tooling lead time: 20 days; prototype samples: 7 days .
Absolutely. Our C5/C6 epoxy coating and 0.20mm grade maintain magnetic properties at -20°C to 180°C. The insulation withstands partial discharge at altitudes up to 5000m — critical for surveying micro drones and robotics operating in extreme environments .
7. Summary & Call to Action – Power Your Next-Generation Micro Motor
🚀 Ready to Optimize Your Small Brushless Motors Stator Core?
Reenives delivers global leading small brushless motors stator cores with 0.15-0.35mm epoxy-coated laminations, optimized geometry, and proven field performance. From micro whoops to robotics actuators, we are your strategic small brushless stator partner .
📦 Request Free Small Brushless Stator Samples & Quote
📧 linda_reenives@163.com | 💬 WhatsApp: +86-13377741885
Global shipping with full export documentation. Virtual factory tour & sample service available. Prototype small brushless motor stator samples ready in 7 days .
8. Dongguan Runlu Motor Technology Co., Ltd.
🏭 Reenives – Global Leading Small Brushless Motors Stator Core Manufacturer (Founded 2022)
R&D 100+ patents 3 bases 50,000+ m² 500+ staff
Reenives is a recognized Global Leading Small Brushless Motors Stator Core 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 small brushless motor stator cores, we support bulk purchasing, private mould development, and rapid sample making. We provide tailor-made perfect solutions for your unique micro drone, FPV, robotics, and industrial production scenarios .
With 4 years of manufacturing experience (specialized in brushless drone and micro motor cores), we have solved small brushless stator core production problems for more than 1000 enterprises globally — from FPV component suppliers to Fortune 500 robotics 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 Small Brushless Motors Stator Core Supplier | Micro Drones, 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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