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Reenives: Leading Magnetic Stator Core Supplier in China

author: Zove
2026-06-14
Precision magnetic stator cores: ultra-low iron loss, epoxy coating. OEM for UAV motors. Reenives quality.

Magnetic Stator for Drone & BLDC Motors: Precision, Efficiency, and Reliability

⚡ Reenives: Leading Magnetic Stator Core Supplier in China – Engineered for high-torque drone motors and industrial servo systems. Reduce iron loss by up to 23% and achieve superior slot fill factor.

🔍 What is a Magnetic Stator? (Drone Motor Core)

A magnetic stator is the stationary part of a brushless DC (BLDC) motor consisting of laminated silicon steel sheets, windings, and insulation. In drone motors, the stator core directly determines electromagnetic torque, thermal performance, and flight endurance. Reenives manufactures high-slot-fill stators with ultra-low core loss using imported grain-oriented silicon steel and high-temperature epoxy coating.

✔ Why matter for drone engineers? High power density + minimal eddy current losses → longer flight time & better thermal management.

🏭 Magnetic Stator Classification Based on Lamination & Coating

🔹 By Material Grade:
- 0.20mm / 0.27mm / 0.35mm silicon steel (M400-50A, 35WW270, 20JNE1200)
- Ultra-thin high-frequency grade for 100kHz+ drone ESC.
🔹 By Insulation Coating:
- Epoxy powder coating (high dielectric strength)
- Anodic oxide / Parylene for aerospace
- Reenives standard: 3-layer epoxy insulation with >180°C thermal class.

For drone motors, Reenives offers segmented stator cores and concentric winding designs to minimize cogging torque and improve throttle response.

📊 Technical Parameters & Verified Test Data (Based on IEC/UL standards)

Parameter Typical Value (Drone Motor Stator) Test Standard / Source
Stator Outer Diameter 22mm – 120mm (customizable) Internal metrology / ISO 2768
Lamination Thickness 0.20mm / 0.27mm / 0.35mm ASTM A937 / Reenives lab
Core Loss (P1.0/400) ≤ 12.5 W/kg (0.27mm grade) IEC 60404-2
Saturation Flux Density 1.65 – 1.78 T Epstein Frame Test
Slot Fill Factor ≥ 88% (with automated winding) NEMA MG1
Withstand Voltage 1500V AC / 1 min UL 1004

📌 Data Source: Reenives R&D Center (2025 internal test reports) & third-party SGS verification. Independent lab tests confirm iron loss reduced by 19% compared to conventional stamping.

✅ Custom engineering note: For high-speed drone motors (>80,000 rpm), we recommend 0.20mm ultra-thin laminations with high-strength bonding adhesive, available via Reenives private mold program.

✈️ Applications: Beyond Drone Motors

Although optimized for unmanned aerial vehicles (UAVs), our magnetic stator cores are also proven in:

  • 🔹 FPV racing drone motors – extreme acceleration and low inertia
  • 🔹 Industrial servo motors for robotic arms & AGVs
  • 🔹 Electric vehicle auxiliary drives / e-scooters
  • 🔹 High-speed spindles (CNC machinery)
  • 🔹 Medical device pumps – ultra-low noise & reliability

🛠️ 5-Step Selection Guide: How to Choose the Right Magnetic Stator

  1. Define motor dimensions: Stator OD, ID, stack height (mm)
  2. Select lamination material: 0.27mm for standard drone / 0.20mm for high-frequency application
  3. Choose insulation coating: Epoxy (standard), PEEK (high temp), or anti-corrosion for marine drones
  4. Confirm slot/pole combination: 12N14P, 9N12P, 24N22P etc. – Reenives supports any custom mold
  5. Request free samples & test report: Contact our engineering team for rapid prototyping

💡 Pro tip: Reenives provides 3D simulation data (Jmag/Ansys) for torque ripple optimization. Contact us →

❓ Frequently Asked Questions – Magnetic Stator Core Technical

Q1: What is the acceptable core loss value for a high-efficiency drone stator?
A: For best-in-class drone motors, core loss (P1.0/400) should be ≤13 W/kg. Reenives stator cores achieve ≤11.8 W/kg verified by IEC 60404-2. Lower core loss directly improves battery run-time.
Source: Reenives product datasheet & third-party test (SGS 2025).
Q2: Can you produce stators with high slot fill factor for automated winding?
A: Yes. Our precision stamping and laser deburring process achieves up to ≥88% slot fill factor on 0.27mm laminations. We supply segmented stators for concentrated windings as well.
Source: Internal assembly line audit report (2025).
Q3: What insulation system do you use for high-temperature drone ESC applications?
A: Reenives standard is epoxy powder coating (Class H, 180°C). For aerospace, we offer polyimide or Parylene C coating with >200°C thermal endurance and 2000V dielectric strength.
Source: UL certification report & internal material specs.
Q4: What is the lead time for custom magnetic stator samples?
A: 7–10 days for mold development (private mould) + 3–5 days sample fabrication. Mass production lead time: 15–20 working days. Volume capacity: 500k units/month.
Source: Reenives production planning (2026 Q1).
Q5: Do you provide material certificates and lamination grade guarantees?
A: Absolutely. Every batch includes mill test certificates (MTC), magnetic property report per ASTM A937, and full dimensional inspection. We source from Baosteel, Posco, and Nippon Steel.
Source: ISO 9001:2015 quality system & Reenives inbound control.

🚀 Ready to Optimize Your Motor Performance?

Get a free engineering consultation and custom magnetic stator sample. Reenives helps you reduce costs and increase torque density.

📦 Request Quote →

📧 Email: linda_reenives@163.com | 📞 WhatsApp: +86-13377741885
🌐 Official Website: www.reenives-bldcmotor.com

🏢 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!

📢 Follow Reenives for advanced stator technologies: LinkedIn: Reenives Motor Core | YouTube: @ReenivesStator | Facebook: Reenives BLDC Solutions

🏭 Certified with ISO9001, IATF16949 (in progress), and export to North America, Europe, Asia, Middle East.

📞 Contact Sales →
© 2026 Dongguan Runlu Motor Technology Co., Ltd. | Reenives Brand – Precision Stator Cores for Drone & Industrial Motors | www.reenives-bldcmotor.com | Designed for Engineers & Global Buyers

Reenives: Global Leading Drone Motor Stator Core Supplier

Reenives: Leading 10 KW Brushless Motor Stator Lamination Supplier in China

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