Reenives: Global Leading Drone Motor Stator Core Supplier
author: Zove
2026-06-14
High-Performance Drone Motor Stator Core | Reenives: Global Leading Drone Motor Stator Core Supplier
🔩 Engineers & procurement managers: Is your drone motor suffering from excess heat, low torque density, or premature failure? The stator core directly determines 70% of motor efficiency. Reenives delivers low iron loss, high slot fill factor stator laminations — precision engineered for UAV and industrial BLDC applications. Reduce eddy currents by up to 35% while boosting flight time.
📖 Article Contents
🔧 What is a Drone Motor Stator Core? (Definition)
The stator core is the stationary part of a brushless DC motor (BLDC), composed of stacked thin silicon steel laminations insulated from each other to minimize eddy current losses. In drone motors, the stator core carries the copper windings and generates the rotating magnetic field that spins the rotor. Its magnetic permeability, lamination thickness, and coating quality directly influence thrust efficiency, heat dissipation, and overall UAV flight endurance.
Image: High-density stator core stack with epoxy insulation coating (Reenives production sample).
📌 Classification of Stator Cores for UAV & Industrial BLDC Motors
🔹 Material Grade50PN470 / 35PN210 / 20PN120 ultra-thin silicon steel
🔹 Lamination ShapeSegmented or integral round shape; concentric/overlapping teeth designs
🔹 Insulation CoatingEpoxy powder coating (edge coverage) / Oxide insulation / Varnish dip
🔹 Manufacturing ProcessHigh-speed progressive stamping → annealing → coating → stacking (laser welding / interlocking)
Reenives supplies both standard drone stator cores for 9N12P, 12N14P configurations and fully customised designs for industrial servo, e-scooter, and automotive auxiliary motors.
📊 Technical Parameters & Verified Data Sources
All specifications below are based on IEC 60404-2 standard measurements and Reenives in-house dyno test reports (2024-2025).
Lamination thickness0.15mm / 0.20mm / 0.35mm (for high-frequency drone motors)
Iron loss (W/kg @ 1.0T, 400Hz)≤ 8.5W/kg (ultra-low loss grade)
Saturation flux density1.68T – 1.72T
Slot fill factor supportUp to 92% with optimized tooth geometry
Coating dielectric strength> 2000V (epoxy powder insulation)
Operating temp range-40°C to +180°C (class H)
✅ Data verified by third-party lab (TÜV partial report available upon NDA) — reference test standard GB/T 3655-2022 & ASTM A912.
✈️ Core Applications – Drone & General BLDC Motors
Reenives stator cores are deployed across:
• UAV propulsion (agricultural spray drones, delivery hexacopters, VTOL fixed-wing)
• Industrial BLDC motors (power tools, robotic actuators, pumps & fans)
• Electric mobility (e-scooters, e-bike hub motors)
• Medical equipment (high-speed centrifuges, surgical tools).
⚙️ Engineer's Step-by-Step Stator Core Selection Guide
- Define motor electrical constraints: voltage, pole pairs, target RPM & frequency (Hz).
- Calculate torque density needs: choose stator outer/inner diameter and stack length.
- Select material thickness: ≤0.2mm for high-speed drone motors (>30,000 rpm), 0.35mm for industrial.
- Evaluate coating method: Epoxy edge coating reduces eddy current by 25% vs. traditional oxide.
- Request sample & loss curve: Reenives provides BH curve & iron loss test report per batch.
- Check mechanical tolerance: concentricity ≤0.02mm, flatness ≤0.03mm for stable winding.
❓ FAQ – Critical Stator Core Technical Queries
1. What lamination thickness reduces eddy current loss most effectively for high-frequency drone motors?
For drone motors operating at 20kHz PWM and above, 0.15mm or 0.20mm ultra-thin silicon steel is optimal. Reenives recommends 0.15mm grade 20PN120 for frequencies >800Hz electrical, reducing iron loss by up to 40% compared to 0.35mm laminations.
Source: Reenives internal loss characterization / IEEE transaction on BLDC stator design, 2024.
2. How does epoxy powder coating impact stator thermal performance and insulation resistance?
Reenives’ epoxy coating provides >2000V dielectric strength and excellent thermal conductivity (0.8 W/m·K). Coating thickness 50-80µm ensures edge coverage that prevents interlaminar short circuits, increasing motor lifespan by 30% in high-humidity UAV operations.
Source: Reenives epoxy validation report (IEC 60317-13).
3. What is the maximum stack length and outer diameter available for custom drone stator cores?
Reenives supports stator outer diameters from 12mm (micro drone) up to 250mm (heavy-lift industrial). Stack length max 120mm for single-piece core, and segmented designs for larger stacks up to 200mm. Tooling-free samples for OD 22-80mm within 10 days.
Source: Reenives engineering capacity catalog 2025.
4. What core loss value (W/kg) can guarantee at 1.5T, 600Hz for drone propulsion motors?
Using Reenives 0.20mm non-oriented silicon steel (35PN210), core loss is ≤18.5 W/kg at 1.5T / 600Hz. For premium 0.15mm grade, loss drops below 12 W/kg. Each batch includes BH loop tester data.
Source: Factory dynamometer & Epsteins frame test (calibrated 2025).
5. Do you provide private mould development and sample-making for unique stator geometries?
Yes, Reenives supports 100% private mould development (custom tooth shape, slot configuration). Minimum sample order 10-50 pcs with 15 working days lead time. Over 1500+ moulds already developed for global clients.
Source: Reenives custom engineering team, established since 2022.
🎯 Summary & Direct Sourcing – Get Premium Stator Cores
🚀 Boost drone endurance & motor efficiency – One-stop stator core supply
From prototype sampling to mass production (MOQ flexible), Reenives supplies globally with CE, RoHS, and ISO 9001:2025 certified stator cores. Get engineering consultation, free failure analysis, and optimized design within 48h.
📩 Contact Engineering Team📞 WhatsApp: +86-13377741885 | 📧 Email: linda_reenives@163.com
🌐 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!
Reenives: Leading Small Drone Motors Stator Core Supplier in Turkey
Reenives: Leading Magnetic Stator Core Supplier in China
Related Article
Reenives engineers stators for robot actuators and drone motors with precision and reliability. With imported high-speed stamping lines, epoxy powder coating, and dust-free workshops, we produce stators with low core loss, high slot fill, and tight tolerances. As a robot actuator drone motor stators core supplier, we help 1000+ enterprises improve motor performance.
Robot Actuator Drone Motor Stators Core Supplier
Reenives engineers matched stator and rotor pairs designed specifically for drone brushless motors. With imported high-speed stamping lines, epoxy powder coating, and dust-free workshops, we produce both stator and rotor cores with low core loss, tight tolerances, and consistent air gaps. As a drone motor stator and rotor supplier, we help 1000+ enterprises improve motor performance.
Drone Motor Stator and Rotor Supplier
Reenives produces electric generator stators and BLDC stator laminations engineered for efficiency. With imported high-speed stamping lines, epoxy powder coating, and dust-free workshops, we deliver stator cores with low core loss, tight tolerances, and clean edges. As a BLDC electric generator stator laminations supplier, we help 1000+ enterprises improve motor and generator performance.
BLDC Electric Generator Stator Laminations Supplier
Reenives engineers matched stators and rotors designed for drone brushless motors. With imported high-speed stamping lines, epoxy powder coating, and dust-free workshops, we produce both stator and rotor cores with low core loss, tight tolerances, and consistent air gaps. As a global leading drone stators and rotors supplier, we help 1000+ enterprises improve motor performance.
Global Leading Drone Stators and Rotors Supplier