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No.1 Drone UAV FPV BLDC Motor Stator Stack Supplier in China

author: Zove
2026-04-25
No.1 stator stack for drone/FPV motors: ultra-low loss, 0.15mm, high torque. Reenives.

Stator Stack for Drone, UAV & FPV BLDC Motors | No.1 Drone UAV FPV BLDC Motor Stator Stack Supplier in China

⚠️ Inefficient stator stacks cause overheating, thrust loss, and short flight times. As the No.1 Drone UAV FPV BLDC Motor Stator Stack Supplier in China, Reenives delivers precision-engineered stator stacks with ultra-low core loss (≤7.5 W/kg @30kHz), 0.15mm ultra-thin laminations, and advanced epoxy coating. Whether for FPV racing drones, commercial UAVs, or industrial BLDC motors, our stator stacks boost efficiency by up to 15%, reduce operating temperatures, and ensure reliable performance. 🚁

📑 Technical Contents

🔧 Stator Stack: The Core of Drone & BLDC Motor Performance

A stator stack (stator core) is a precision-assembled stack of thin silicon steel laminations that forms the stationary magnetic circuit in a brushless DC motor. For drones, UAVs, and FPV racing, the stator stack directly determines electromagnetic efficiency, thermal management, and power-to-weight ratio. High-quality stator stacks minimize eddy current and hysteresis losses, enabling faster throttle response, higher torque density, and extended flight endurance. Reenives specializes in stator stacks with optimized slot geometries, tight tolerances (ID/OD ±0.02mm), and pioneering coating technologies – trusted by 1000+ global OEMs.

High-precision stator stack for drone UAV FPV BLDC motor
Figure 1: Precision stator stack (0.15mm lamination) with epoxy coating – optimized for drone and FPV applications.

📌 Classification of Stator Stacks for Drone, UAV & FPV Motors

Based on motor architecture and application demands, Reenives supplies several stator stack categories:

  • 🔹 FPV Racing Stator Stacks: Ultra-light, high-RPM designs (22xx, 23xx series) – 0.15mm laminations for minimal eddy loss, optimized for 6S-8S LiPo.
  • 🔹 Long-Endurance UAV Stator Stacks: High torque efficiency (28xx, 31xx series) – balanced 0.20mm laminations with enhanced cooling channels.
  • 🔹 Segmented Stator Stacks: Modular segments for concentrated windings, enabling higher slot fill factor and improved heat dissipation for heavy-lift drones.
  • 🔹 Ultra-thin (0.10mm) High-Frequency Stator Stacks: For extreme high-frequency (>50kHz) applications, providing record-low core loss for next-gen eVTOL and high-end FPV.

📊 Technical Parameters & Verified Data (Reenives Engineering)

All data below derived from Reenives internal QA lab and third-party testing per IEC 60404-2 and ASTM A912. These parameters apply to standard stator stacks for drone, UAV, FPV, and industrial BLDC motors.

Series (OD/ID mm) Stack Height (mm) Steel Grade Lam. Thick. Core Loss @30kHz (W/kg) Coating Class Stacking Factor
22xx FPV (22x18) 5-8 custom 27PH150 0.15mm ≤7.5 H (200°C) ≥97.5%
23xx FPV (23x18.5) 6-10 27PH150 0.15mm ≤7.2 H (200°C) ≥97.6%
28xx UAV (28x22) 8-15 35PN210 0.20mm ≤11.8 H (180°C) ≥96.8%
31xx Industrial (31x26) 10-20 50PN470 0.35mm ≤18.0 F (155°C) ≥97.2%
Custom Ultra-High-Freq 8-25 0.10mm grade 0.10mm ≤4.5 H (200°C) ≥98.0%

🔬 DATA SOURCE Reenives production & metrology reports 2025, ISO 9001:2015 certified. Tolerances: ID/OD ±0.02mm, stack height ±0.03mm, flatness ≤0.03mm. 100% Hi-pot and insulation resistance tested.

✈️ Key Applications: Drones, UAVs, FPV Racing & Industrial BLDC

Our No.1 stator stacks power critical motor systems in:

  • FPV Racing Drones: 3-inch to 7-inch platforms – demanding instant torque, minimal cogging, and high RPM stability.
  • Commercial UAVs: Agricultural spraying, delivery drones, mapping UAVs – requiring high reliability and efficiency over long missions.
  • eVTOL & Urban Air Mobility: High-power-density stator stacks for lift+cruise configurations.
  • Industrial BLDC Servo Drives: Robotics arms, automated guided vehicles (AGVs), medical pumps, CNC spindles.
Stator stack manufacturing for drone UAV FPV BLDC motors at Reenives
Application scene: High-volume stator stack production for global drone motor OEMs.

⚙️ 5-Step Engineering Selection for Stator Stacks (Drone/UAV/FPV)

  1. Define motor stator dimensions & slot/pole combination: e.g., 12N14P for 2207 FPV motor – determines lamination geometry and tooling.
  2. Specify target KV, max RPM, and power: Provide your motor’s electrical parameters for optimal lamination thickness selection.
  3. Select lamination material & thickness: For FPV racing (>40kHz PWM) use 0.15mm grade; for long-endurance UAV use 0.20mm; 0.10mm available for extreme performance.
  4. Choose coating & skewing options: Reenives offers epoxy powder coating (40-80µm, 1800V dielectric, thermal class H/200°C). Optional step-skewing reduces cogging torque for smoother throttle response.
  5. Request prototype samples & validation: We provide up to 5 free sample sets, including full magnetic test report (B-H curve, iron loss data, dimensional report).

💡 Engineering tip: For high-performance FPV drones, ask about our 0.15mm ultra-thin stator stacks with 5° skew – proven to reduce torque ripple by 35% and improve flight smoothness.

❓ FAQ – Stator Stack Technical Deep Dive (Drone/UAV/FPV Focus)

🔹 What core loss can I expect from a 0.15mm stator stack at typical FPV switching frequencies?
For 0.15mm grade 27PH150 laminations, core loss is ≤7.5 W/kg at 30kHz / 0.8T, and ≤9.2 W/kg at 50kHz. This is ~40% lower than standard 0.20mm stacks, directly translating to cooler motor temperatures and longer flight times during aggressive FPV flights. Source: Reenives material datasheet & IEC 60404-2 test (2025).
🔹 How does lamination thickness affect drone motor efficiency and response?
Thinner laminations (0.15mm vs 0.20mm) reduce eddy current losses by 25-30% at high RPM (>40,000). This provides snappier throttle response and up to 4% system efficiency gain. However, 0.20mm offers slightly higher mechanical robustness for heavy-lift industrial drones. Reenives provides both options with full performance curves. Source: Reenives motor design simulation & validation report.
🔹 What stacking factor does Reenives guarantee for stator stacks?
Reenives guarantees stacking factor ≥97.5% for 0.15mm laminations and ≥96.8% for 0.20mm using high-precision interlocking or laser welding. This ensures maximum magnetic flux density and minimal air gap losses – critical for achieving peak motor efficiency in racing drones. Source: Reenives QA test report per ASTM A912.
🔹 What insulation coating is recommended for high-temperature FPV motors?
Standard epoxy powder coating provides 1800V dielectric strength and thermal class H (180°C continuous). For extreme FPV racing with 8S LiPo and high ambient temps, Reenives offers PI-based coating rated for 200°C. Edge coverage is ≥98%, preventing inter-lamination shorts even under heavy loads. Source: Reenives stator insulation specification V3.2.
🔹 Can Reenives produce stator stacks with skewed slots for smoother drone flight?
Yes, Reenives supports step-skewed or progressive skewed laminations, reducing cogging torque by up to 35% – resulting in ultra-smooth throttle response and reduced vibration in FPV footage. Minimum order for custom skewing is 500 pcs, with free sample evaluation available for qualified projects. Source: Reenives R&D engineering guidelines.

📢 Request Your Custom Stator Stack – Engineer Support & Free Sample

⚡ Partner with the No.1 stator stack supplier for drones, UAVs & FPV motors – Reenives.

✔️ Private mould & tailor-made geometries (0.15mm / 0.10mm available)
✔️ Free technical consultation + prototype samples (up to 5 sets)
✔️ Global shipping with full export documentation

🌐 Visit Official Website
📞 WhatsApp: +86-13377741885
📧 Email: linda_reenives@163.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!

🔗 Official domain: www.reenives-bldcmotor.com | Your No.1 partner for precision stator stacks in drone, UAV & FPV BLDC motors.

© 2025 Reenives – A Division of Dongguan Runlu Motor Technology Co., Ltd. All specifications are engineering references. Contact for latest datasheets and sample requests.

⚙️ No.1 stator stack supplier for drone, UAV & FPV BLDC motors | OEM/ODM expert – Request a free sample & engineering consultation

Reenives: Reputable Drone UAV FPV Propulsion System BLDC Motor Stator Lamination Core Supplier in China

Reenives: Pioneer of UAV FPV Drone BLDC Stator Stack Supplier in China

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