UAV FPV Drone Motor Electric Stator Lamination Supplier
Electric Stator – Precision Laminations for UAV FPV Drone Motors & BLDC Propulsion
UAV motor efficiency lagging? FPV drone flight times too short? Stator quality inconsistent? The electric stator is the stationary core of every brushless motor—the component that generates the rotating magnetic field that drives the rotor and propeller. As a specialist UAV FPV drone motor electric stator lamination supplier, Reenives delivers precision stator cores with 0.2mm ultra-thin silicon steel, burr height < 0.03mm, and epoxy coating—reducing core loss by up to 30%, maximizing thrust-to-weight ratio, and extending flight times for UAV, FPV, agriculture, and eVTOL applications worldwide.
- • What Is an Electric Stator?
- • Classification of Electric Stator Cores
- • Technical Specifications & Verified Data
- • Applications: UAV Drones, FPV Racing, Robotics & More
- • 6-Step Engineering Selection Guide for Electric Stators
- • FAQ: Electric Stator Technical Questions
- • Why Reenives – UAV FPV Drone Motor Electric Stator Lamination Supplier
- • Dongguan Runlu Motor Technology Co., Ltd.
What Is an Electric Stator?
An electric stator is the stationary component of an electric motor that generates a rotating magnetic field when energized. It consists of a stator core—made of precision-stacked silicon steel laminations—and copper windings that create the electromagnetic poles that interact with the rotor's permanent magnets to produce rotation.
Key components of an electric stator:
- Stator core (lamination stack) – Thin silicon steel sheets stamped and stacked to minimize eddy current losses
- Copper windings – Enameled copper wire wound around stator teeth to create magnetic poles
- Insulation coating – Epoxy or varnish coating for electrical insulation and corrosion protection
- Terminals/leads – Connection points for wiring
For UAV and FPV drone motors, the electric stator must deliver:
- High efficiency – Low core loss to maximize flight time
- High power density – Maximum thrust per unit weight
- Thermal stability – Heat dissipation for sustained high-RPM operation
- Precision geometry – Consistent air gap for smooth torque and minimal cogging
ⓘ Stator insight: "The electric stator is the single most critical component in any brushless motor. Its design determines whether a UAV can fly for extended missions or an FPV drone can achieve record speeds."
Reenives manufactures precision electric stator cores for UAV and FPV drone motors using imported 0.2mm silicon steel, progressive stamping dies, and automated epoxy powder coating—delivering optimal magnetic performance for demanding drone propulsion systems.
Classification of Electric Stator Cores
Reenives supplies electric stator cores across four primary series, tailored to different drone classes and performance requirements:
| Series | Stator OD (mm) | Slot/Pole Configuration | Lamination Thickness | Best For |
|---|---|---|---|---|
| Series A – Micro FPV | 12–20mm | 9N12P | 0.15–0.20mm | Micro drones, tiny whoops, sub-100g FPV |
| Series B – FPV Racing | 22–30mm | 9N12P, 12N14P | 0.15–0.20mm | 3–5 inch FPV racing drones, freestyle |
| Series C – Mid-Size UAV | 30–50mm | 12N14P, 24N22P | 0.20mm | Logistics drones, camera platforms, agriculture |
| Series D – Heavy-Lift & eVTOL | 50–80mm | 24N22P, 36N30P | 0.20mm | Heavy-lift UAVs, eVTOL, cargo drones |
Electric stator cores are optimized for specific drone applications:
- 9N12P (9-slot, 12-pole): Most common for FPV racing—excellent torque and smoothness
- 12N14P: Higher torque density, popular for 5-inch+ FPV and freestyle drones
- 24N22P: High torque, low cogging, ideal for logistics and agriculture UAVs
- 36N30P: Maximum torque density for eVTOL and heavy-lift applications
Technical Specifications & Verified Data
All performance data below is derived from Reenives in-house laboratory testing (IEC 60404-2), third-party validation, and industry standards for electric stators.
| Parameter | Value / Range (Reenives Standard) | Test Standard / Source |
|---|---|---|
| Stator Outer Diameter | 12–80mm (customizable) | CMM / optical comparator |
| Material Type | Silicon steel (CRNGO / Non-oriented) | Material certificates / IEC 60404 |
| Common Grades | 35PN210, 35PN250, 50A470 (Nippon Steel / Baowu) | Material certificates |
| Lamination Thickness | 0.15mm / 0.20mm / 0.35mm (customizable) | Micrometer / IEC 60404-2 |
| Core Loss @ 1.0T, 400Hz (0.20mm) | ≤ 8.5 W/kg — 30% lower than 0.35mm | IEC 60404-2 / Reenives R&D |
| Saturation Flux Density Bs | 1.68 – 1.72 T | Epstein frame test |
| Burr Height (max) | < 0.03mm | Optical measurement |
| Epoxy Coating Thickness | 30–60 µm, dielectric > 2.5 kV | ASTM D149 |
| Stacking Factor | ≥ 97.5% | Weight method |
| Concentricity Tolerance | ±0.01mm – ±0.015mm | CMM measurement |
| Slot/Pole Configurations | 9N12P, 12N14P, 24N22P, 36N30P, custom | Reenives design standards |
| Typical UAV Motor Efficiency | 90–95% (with optimized stator) | IEEE Xplore / FEM simulation |
| Flight Time Improvement | 8–12% (vs. standard 0.35mm stator) | Reenives R&D / field testing |
🔬 Data Source: Reenives R&D Report 2024-Q4 + IEC 60404-2 standard + Material certificates + IEEE Xplore motor studies.
Applications: UAV Drones, FPV Racing, Robotics & More
Electric stator cores power the full spectrum of UAV and FPV applications. The right stator is essential for each use case:
| Application | Typical Stator Size | Stator Requirements | Performance Priorities |
|---|---|---|---|
| FPV Racing Drones | 22–30mm | Ultra-thin 0.15mm, high fill factor, low cogging | High RPM, rapid acceleration, responsiveness |
| Freestyle / Cinematic FPV | 22–30mm | 0.20mm, smooth torque, thermal stability | Smooth control, consistent power, cooling |
| UAV Logistics & Delivery | 30–50mm | 0.20mm, high efficiency, durability | Long flight time, payload capacity, reliability |
| UAV Agriculture Spraying | 40–60mm | 0.20mm, corrosion-resistant coating | Heavy payload, dust/chemical resistance, power |
| eVTOL / Air Taxi | 50–80mm | 0.20mm, high power density, reliability | Safety, redundancy, high continuous power |
| Micro / Tiny Whoop FPV | 12–20mm | 0.15mm, ultra-lightweight | Weight reduction, efficiency at low power |
"The electric stator is the foundation of every UAV and FPV propulsion system. Its design determines whether a drone can race at high speeds, carry heavy payloads, or fly for extended missions."
6-Step Engineering Selection Guide for Electric Stators
For UAV motor designers and procurement engineers, selecting the optimal electric stator requires systematic evaluation. Here is a practical 6-step framework:
- Define Drone Class & Performance Requirements – Identify your drone's mission profile:
- FPV racing: High RPM, rapid acceleration, lightweight
- FPV freestyle: Smooth control, consistent power, cooling
- UAV logistics: Long flight time, high payload, efficiency
- UAV agriculture: Heavy lift, dust/chemical resistance, durability
- eVTOL: Safety, redundancy, high continuous power
- Select Stator Outer Diameter – Match motor size to drone class:
- 12–20mm: Micro drones, tiny whoops
- 22–30mm: FPV racing, freestyle (most popular)
- 30–50mm: Logistics, agriculture, camera platforms
- 50–80mm: Heavy-lift, eVTOL, cargo drones
- Choose Lamination Thickness – Thinner laminations reduce core loss at high frequencies:
- 0.15mm: Ultimate high-RPM performance, FPV racing drones
- 0.20mm: Optimal balance—most UAV and FPV applications
- 0.35mm: Not recommended for high-performance UAV/FPV motors
ⓘ "0.20mm laminations reduce core loss by approximately 30% compared to 0.35mm—translating to 8–12% longer flight times for UAV and FPV applications."
- Define Slot/Pole Configuration – Match to motor characteristics:
- 9N12P: Most common for FPV—excellent torque and smoothness
- 12N14P: Higher torque density, ideal for 5-inch+ FPV drones
- 24N22P: High torque, low cogging, logistics and agriculture UAVs
- 36N30P: Maximum torque density for eVTOL
- Specify Insulation & Coating – Critical for drone motor reliability:
- Epoxy powder coating (30–60µm, Class H 180°C)
- Corrosion resistance for agriculture and outdoor operations
- Dielectric strength > 2.5 kV for reliable insulation
- Choose a Specialist Electric Stator Supplier – Evaluate UAV motor expertise:
- Experience with UAV and FPV motor stator designs (9N12P, 12N14P, 24N22P, etc.)
- Ultra-thin lamination capability (0.15–0.20mm)
- Precision stamping: burr < 0.03mm, concentricity ±0.01mm
- Epoxy coating capability for drone motor environments
- Material certificates and third-party test reports
- Proven track record with UAV and FPV motor manufacturers
- Responsive engineering support for drone motor applications
FAQ: Electric Stator Technical Questions
For UAV FPV drone motors, the optimal electric stator features: 0.20mm (or 0.15mm for racing) silicon steel laminations, 9N12P or 12N14P slot/pole configurations, burr height < 0.03mm, epoxy coating, and stacking factor ≥ 97.5%. These parameters minimize core loss, reduce weight, and maximize efficiency—delivering faster acceleration, higher top speeds, and longer flight times. Reenives specializes in these high-performance UAV and FPV motor stators.
Lamination thickness directly impacts core loss in UAV and FPV motors operating at high frequencies (up to 40 kHz PWM). 0.20mm laminations achieve core loss ≤ 8.5 W/kg at 400Hz—approximately 30% lower than conventional 0.35mm material. For FPV racing drones operating at even higher RPM, 0.15mm laminations provide ultimate performance. The result: cooler motors, higher efficiency, and 8–12% longer flight times for UAV and FPV applications.
9N12P (9-slot stator, 12-pole rotor) is the most common configuration for FPV stators, particularly in racing and freestyle drones. It offers: (1) excellent torque-to-weight ratio, (2) smooth operation with low cogging torque, (3) wide availability of compatible ESCs, and (4) proven performance across thousands of FPV drone designs. 12N14P is also popular for larger 5-inch+ FPV drones, offering higher torque density.
The stator core directly impacts UAV flight time through core loss. Lower core loss means less energy wasted as heat and more power available for thrust. Using 0.20mm silicon steel instead of 0.35mm reduces core loss by approximately 30%, which translates to 8–12% longer flight times for the same battery capacity. For a 20-minute flight, this could mean 2–2.5 minutes of additional flight time—a significant advantage for UAV logistics and surveying applications.
Burr height is the raised edge left on stamped metal after the punching process. In UAV and FPV stators, burr height must be maintained below 0.03mm because excessive burrs can: (1) damage enamel insulation on copper windings during assembly, causing short circuits, (2) create localized magnetic saturation points that reduce efficiency, (3) increase core loss through eddy current concentration, and (4) reduce motor reliability—critical for UAV and FPV applications where motor failure means crashing. Reenives maintains burr height < 0.03mm through precision progressive stamping dies.
Epoxy powder coating provides three critical functions for UAV and FPV stators: (1) electrical insulation between laminations to minimize eddy currents and prevent interlaminar shorts, (2) corrosion resistance for operation in humid environments, outdoor conditions, and agriculture applications where chemicals may be present, and (3) thermal durability up to 180°C (Class H) to withstand the heat generated during high-power drone operation. The coating thickness (30–60µm) is optimized for tight slot geometries common in drone motors.
Yes. Reenives supports full customization of UAV and FPV stators including: stator outer diameter (12–80mm), lamination thickness (0.15–0.20mm), slot/pole configurations (9N12P, 12N14P, 24N22P, 36N30P, custom), stacking height, material grade, and epoxy coating specifications. Private mould development is available for high-volume OEM projects with exclusive design rights—from micro FPV motors to heavy-lift eVTOL propulsion systems.
Why Reenives – UAV FPV Drone Motor Electric Stator Lamination Supplier
Reenives has earned its reputation as a specialist UAV FPV Drone Motor Electric Stator Lamination Supplier by combining advanced manufacturing technology with deep expertise in drone propulsion systems.
Our Advantages — UAV & FPV Stator Specialists
- ✅ Ultra-Thin Silicon Steel: 0.15–0.20mm laminations reduce core loss by up to 30%—extending UAV and FPV flight times by 8–12%
- ✅ Precision Progressive Stamping: Burr height < 0.03mm, concentricity ±0.01mm, stacking factor ≥ 97.5%
- ✅ Drone-Optimized Configurations: 9N12P, 12N14P, 24N22P, 36N30P, and custom designs for any UAV or FPV application
- ✅ Full Customization: Private mould development, tailored stator diameters, and custom stack heights
- ✅ Trusted Quality Control: IEC 60404-2 testing, third-party verification, and material certificates
- ✅ UAV & FPV Expertise: 4 years of experience with 1,000+ enterprise clients—specializing in drone propulsion
- ✅ Global Export Capability: Complete export qualifications with worldwide shipping to UAV and FPV manufacturers
- ✅ 100+ R&D Patents: Continuous innovation in electric stator technology for drone applications
🚁 Our UAV & FPV promise: Electric stator cores that deliver longer flight times, higher thrust, and cooler operation. Consistent quality that eliminates rework. Technical support that understands drone propulsion. That's why Reenives is the trusted UAV FPV drone motor electric stator lamination supplier.
🚁 Ready to power your UAV or FPV motors with high-performance electric stator cores?
Contact Reenives today for engineering consultation, OEM samples, and competitive global pricing.
📱 WhatsApp: +86-13377741885
Dongguan Runlu Motor Technology Co., Ltd.
Reenives — Professional Drone Stator Core Manufacturer
Founded in 2022, Reenives has rapidly grown into a trusted electric stator lamination supplier for the worldwide UAV, FPV, robotics, and industrial motor markets.
Independent R&D Technology · Imported stamping & epoxy powder coating production lines · Dust-free workshops · 4 years of manufacturing experience · Solved electric stator challenges for 1,000+ enterprises worldwide—including leading UAV and FPV manufacturers.
From production to sales, we support bulk purchasing, private mould development, and sample making. We provide tailor-made solutions for your specific drone motor production scenarios—with competitive global pricing, consistent quality, and reliable on-time delivery.
🌐 www.reenives-bldcmotor.com | 📧 linda_reenives@163.com | 📱 +86-13377741885
✈️ Global UAV and FPV manufacturers welcome — consult, visit the factory, or request free samples today!
Reenives — UAV FPV Drone Motor Electric Stator Lamination Supplier
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