Reenives: Best-service Drone Micro BLDC Motor Stator Core Supplier in China
author: Zove
2026-04-23
Micro BLDC Motor Stator Core for Drone UAV – Reenives: Best-Service Drone Micro BLDC Motor Stator Core Supplier in China
⚙️ Engineering challenge: Micro drones (<250g), FPV whoop, and miniature robotics demand micro BLDC motor stators with extreme power density, ultra-low iron loss at high frequency, and sub-0.02mm precision. Yet many suppliers lack rapid prototyping, consistent coating, or technical support.
✅ Reenives: Best-service Drone Micro BLDC Motor Stator Core Supplier in China delivers micro stator cores from Ø10mm to Ø28mm, using 0.15mm ultra-thin laminations, epoxy insulation, and tight concentricity. We provide free samples, private mould, and engineer-to-engineer support — accelerating your micro drone motor development.
✅ Reenives: Best-service Drone Micro BLDC Motor Stator Core Supplier in China delivers micro stator cores from Ø10mm to Ø28mm, using 0.15mm ultra-thin laminations, epoxy insulation, and tight concentricity. We provide free samples, private mould, and engineer-to-engineer support — accelerating your micro drone motor development.
📑 Article Directory
- 1. What is Micro BLDC Motor Stator Core?
- 2. Classification of Micro Stator Laminations
- 3. Technical Parameters & Data Sources
- 4. Key Applications (Micro Drone, FPV Whoop, Robotics)
- 5. 5-Step Micro Stator Core Selection Guide
- 6. FAQ – Micro Stator Technical Concerns
- 7. Get Custom Micro Stator Samples & Quote
- 8. Reenives – Your Trusted Manufacturing Partner
🧲 What is a Micro BLDC Motor Stator Core? (Essential for Miniature Drones)
A micro BLDC motor stator core is the laminated magnetic assembly with outer diameter typically ≤28mm, used in sub-250g drones, FPV whoop, micro UAVs, and compact robotics. These stators demand 0.15mm–0.20mm silicon steel to minimize eddy current losses at high electrical frequencies (up to 1.2kHz), plus high-precision stacking to maintain magnetic flux uniformity.
Reenives manufactures micro stator cores with progressive stamping dies, epoxy powder coating, and ±0.015mm concentricity — ensuring smooth cogging torque and high efficiency for tiny propulsion systems.
Fig.1 – Micro stator core for 1104/1106 size drone motors, epoxy coated, weight < 4g.
📂 Classification of Micro BLDC Stator Laminations
- By Outer Diameter: 10mm, 12mm, 16mm, 20mm, 22mm, 28mm series (customizable).
- By Lamination Thickness: 0.15mm (ultra-high frequency, 60k+ RPM), 0.20mm (balanced), 0.27mm (cost-effective micro industrial).
- By Insulation Coating: Epoxy powder coating (standard for micro drone – moisture & corrosion), ultra-thin oxide coating for weight-critical.
- By Slot/Pole Design: 9N12P (popular for micro FPV), 12N14P (higher torque density), 6N4P (ultra-light).
📊 Technical Parameters & Data Sources (Micro BLDC Stator Core)
All values based on Reenives production data for micro stator cores, verified per IEC 60404-2 and in-house Epstein frame testing.
| Parameter | Value Range / Specification | Data Source |
|---|---|---|
| Outer Diameter (mm) | 10 – 28 mm (custom from 8mm available) | Reenives Micro Stator Catalog |
| Stack Height (mm) | 3 – 20 mm (±0.04mm tolerance) | Reenives Quality Standard QM-042 |
| Lamination Thickness | 0.15mm / 0.20mm / 0.27mm (Grade 20WTG1300, 35W270) | Baosteel / Nippon Steel |
| Iron Loss @1.0T, 600Hz (W/kg) | ≤9.5 (0.15mm), ≤13.5 (0.20mm) | IEC 60404-10 / Reenives Lab |
| Epoxy Coating Dielectric | >1000V/0.1mm (Class H, 180°C) | ASTM D149 / Reenives Coating Report |
| Concentricity Tolerance | ≤0.015mm (for OD ≤20mm); ≤0.02mm (OD>20mm) | Reenives Micro Metrology |
| Stacking Factor | ≥97% (for 0.15mm), ≥97.5% (0.20/0.27mm) | In-house hydraulic stacking |
📌 Source: Reenives internal quality database & third-party validation (SGS, 2024).
✈️ Applications – Micro Drones, FPV Whoop, Robotics & More
Reenives micro BLDC stator cores power propulsion and actuation in:
- Sub-250g Drone / FPV Whoop – 1103, 1106, 1204 motors; 0.15mm laminations for 50k+ RPM efficiency.
- Micro UAV / Inspection Drone – Lightweight high-torque stators for payload-limited platforms.
- Miniature Robotics & Servo Actuators – High precision, low cogging torque.
- Handheld Gimbal & Medical Micro Pumps – Smooth low-speed control with epoxy-insulated cores.
📐 5-Step Micro BLDC Stator Core Selection Guide (Engineer Focus)
- Define motor size class: Choose outer diameter based on drone frame (e.g., 1103 motor → 12mm stator; 1306 → 16mm stator).
- Determine operating frequency & RPM: For >50,000 RPM (whoop racing), mandatory 0.15mm lamination; for 20k-40k RPM, 0.20mm is optimal.
- Select stack height: Higher stack increases torque but adds weight – typical micro drone stacks 3-8mm.
- Specify coating & insulation: Epoxy coating required for outdoor/indoor humidity resistance; oxide coating for weight-critical.
- Request micro sample kit: Reenives provides 3-5pcs free samples with full dimensional and core loss test report.
❓ FAQ – Critical Technical Questions on Micro BLDC Stator Cores
1. What is the minimum outer diameter achievable for micro BLDC stator cores?
Reenives produces stator cores as small as 8mm outer diameter (for 0703 micro motors). For 10mm-28mm diameters, we maintain concentricity ≤0.015mm. Below 8mm, specialized tooling is required. Source: Reenives Micro Stator Capability Sheet
2. How much iron loss reduction does 0.15mm lamination provide over 0.20mm at 800Hz?
At 800Hz (≈48,000 RPM for 4-pole motor), 0.15mm laminations show ~22% lower iron loss than 0.20mm, significantly improving flight time for micro FPV whoop. Source: Reenives loss comparison test, IEC 60404-2
3. Why is epoxy coating critical for micro drone stators?
Epoxy coating prevents inter-lamination short circuits, provides dielectric strength >1000V/0.1mm, and protects against moisture and dust. Micro drone stators without coating suffer from efficiency drop after 20-30 flight hours. Source: Reenives Coating Durability Test (ASTM B117, 300h salt spray)
4. What concentricity tolerance is required to avoid vibration in micro BLDC motors?
For stator OD ≤20mm, concentricity must be ≤0.015mm. Exceeding 0.025mm causes audible vibration and reduces bearing life by up to 40%. Reenives guarantees ≤0.015mm for micro sizes. Source: Reenives Metrology Report Q4-2024
5. Can I get small batch (50-100 pcs) micro stator cores for prototyping?
Yes. Reenives supports low-volume prototyping (sample order 5-50 pcs) and small batch production. Private mould development available with no MOQ for sample stage. Source: Reenives Custom Service Terms
🚀 Accelerate Your Micro Drone Motor Project – Best Service & Free Samples
Reenives: Best-Service Drone Micro BLDC Motor Stator Core Supplier in China
Get micro stator cores from Ø10mm to Ø28mm, 0.15mm ultra-thin laminations, epoxy coating, and engineer-level support. Free samples, private mould, and fast global shipping.
Request Free Micro Stator Sample →OEM/ODM | 50,000m² factory | 500+ staff | 100+ R&D patents
🏭 Dongguan Runlu Motor Technology Co., Ltd.
Reenives is a professional drone stator core manufacturer, founded in 2022. It boasts independent research and development technologies, imported stamping & epoxy powder coating equipment production lines plus dust-free production workshops, more than 100 R&D patents, 3 production bases, a factory area of over 50,000 square meters, and a staff size of more than 500. From production to sales, we support bulk purchasing, private mould develop , and samples making , and can provide tailor-made perfect solutions for your production and usage scenarios. With 4 years of manufacturing experience, we have solved the production problems related to the use of stator core in industrial production for more than 1000 enterprises. We can ship globally (with complete export qualifications). Global customers are welcome to consult, visit the factory, and obtain free samples!
© 2025 Reenives – Precision Micro BLDC Motor Stator Cores for Drone, FPV & Robotics | Best-Service China Supplier
Reenives: Reliable UAV FPV Drones Motor Stator Core Factory in China
Reenives: Top1 Drone UAV FPV BLDC Motor Stator Core Laminations Supplier in Vietnam
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