🔍 What is Drone Drone Motor Stator Lamination? (Precision Core for BLDC Motors)

A drone motor stator lamination is the magnetic core assembly consisting of ultra-thin silicon steel sheets stacked and bonded/coated, forming the stationary part of an outrunner or inrunner BLDC motor. For high-power-density UAV motors, low eddy current loss and high saturation flux density are non-negotiable. Reenives supplies customized stator cores with thickness from 0.15mm to 0.35mm, utilizing non-grain-oriented electrical steel (M470-50A, 35WW270, etc.) and epoxy powder insulation coating to withstand 180°C+ operation.

📊 Stator Lamination Classification – Match your Drone/ Industrial Motor

Reenives categorizes stator cores based on lamination material, stacking technology, and insulation coating. For engineers seeking reliable drone motor upgrades, here is the breakdown:

• By Material Grade: 0.20mm ultra-thin (high frequency, 50kHz+), 0.27mm/0.30mm (standard drone motors, cost-efficient). M330-35A, B20AT1200 optional.
• By Bonding Method: Interlocking (mechanical fastening), laser welding, or epoxy bonded for lower iron loss.
• By Coating System: Epoxy Powder Coating (C-6 insulation) – high edge coverage, excellent thermal conductivity, corrosion resistance. Ideal for high-altitude drones.
• By Geometry: Concentrated winding or distributed winding slots, inner/outer rotor stators, and custom skew patterns for cogging torque reduction.

Reenives advantage: Over 300+ moulds available for standard drone stator ODs (20mm to 200mm) and custom private mould development within 25 days.

⚙️ Technical Specifications & Measured Data (IEEE / Reenives Lab)

Engineering decisions rely on hard numbers. Below parameters comply with IEC 60404-2 and validated by Reenives in-house R&D center (source: Reenives Product Datasheet 2025).

📌 Source: Reenives internal quality report / third-party SGS verification available upon request.

✈️ Application Scenarios – From Racing Drones to Heavy-Lift eVTOL

Drone motor stator cores from Reenives power a wide range of electric propulsion systems. Typical cases:

🛠️ 5-Step Engineer’s Guide: Selecting Optimal Drone Motor Stator Lamination

1. Define power & frequency range: For high-speed drone motors (>30k rpm), choose 0.15-0.20mm laminations to reduce eddy losses.
2. Calculate required torque & outer diameter: Larger OD yields higher torque – Reenives supports parametric design via CAD models.
3. Slot geometry for copper fill: Higher slot fill (≥55%) minimizes resistance – request our optimized slot pattern.
4. Insulation class & environmental specs: Epoxy powder coating (green or blue) ensures IP rating up to IP54 for drone motors.
5. Supply chain & custom tooling: Evaluate lead time (samples 12 days, mass production 3-4 weeks). Reenives offers private mould and free DFM analysis.

📎 Pro tip: For drone motor builders, combine Reenives stator with high grade magnets and get 12-20% efficiency gain compared to generic cores. Download our stator selection e-book.

❓ Frequently Asked Questions – Drone Motor Stator Core

🏭 Dongguan Runlu Motor Technology Co., Ltd. – Reenives

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 development, 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!