Reenives: Top1 Drone BLDC Motor Stator Stack Supplier in China
Stator Stack for Drone BLDC Motors | Reenives: Top1 Drone BLDC Motor Stator Stack Supplier in China
⚠️ Poor motor efficiency, excessive heat, and short flight time? The root cause often lies in an inferior stator stack. As Reenives: Top1 Drone BLDC Motor Stator Stack Supplier in China, we engineer precision stator stacks with ultra-low core loss (≤8.5 W/kg @30kHz), high stacking factor (≥97%), and advanced epoxy insulation. Whether for heavy-lift drones, eVTOL, or industrial BLDC servos, our stator stacks boost torque density by up to 15% while reducing temperature rise. 🚁
📑 Technical Contents
🔧 Stator Stack: The Core of Drone BLDC Motor Performance
A stator stack (also known as stator core or lamination stack) is the stationary magnetic circuit in a brushless DC motor, composed of precisely stacked silicon steel laminations. For drone propulsion, the stator stack determines electromagnetic efficiency, thermal management, and power density. High-quality stator stacks minimize eddy current and hysteresis losses, enabling higher RPM, longer flight endurance, and reliable operation under extreme loads. Reenives specializes in stator stacks with optimized slot geometries, tight tolerances (ID/OD ±0.02mm), and advanced coating technologies.
📌 Classification of Stator Stacks for Drone & BLDC Motors
Based on motor architecture and application demands, Reenives supplies several stator stack categories:
- 🔹 Outer Rotor Stator Stacks: Standard for multi-rotor drones (22xx, 23xx, 28xx series) – high torque density, compact radial footprint.
- 🔹 Inner Rotor Stator Stacks: For high-speed racing drones and fixed-wing UAVs – low inertia, excellent dynamic response.
- 🔹 Segmented Stator Stacks: Modular segments for concentrated windings, enabling higher slot fill factor and improved heat dissipation.
- 🔹 Ultra-thin (0.15mm) High-Frequency Stator Stacks: Engineered for >30kHz PWM frequency, ideal for eVTOL and ultra-high-power-density propulsion.
📊 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 BLDC and industrial motors.
| Series (OD/ID mm) | Stack Height (mm) | Steel Grade | Lam. Thick. | Core Loss @30kHz (W/kg) | Coating Class | Stacking Factor |
|---|---|---|---|---|---|---|
| 22xx (22x18) | 5-10 custom | 35PN210 | 0.20mm | ≤12.3 | H (180°C) | ≥96.8% |
| 23xx (23x18.5) | 6-12 | 27PH150 | 0.20mm | ≤10.2 | H (180°C) | ≥96.9% |
| 28xx (28x22) | 8-15 | 35PN210 | 0.20mm | ≤11.8 | H+ (200°C opt.) | ≥96.5% |
| 31xx (31x26) | 10-20 | 50PN470 | 0.35mm | ≤18.0 | F (155°C) | ≥97.2% |
| High-efficiency custom | 8-35 | 0.15mm grade | 0.15mm | ≤7.5 | H (200°C) | ≥97.5% |
🔬 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: Drone Propulsion & Industrial BLDC Motors
Our high-precision stator stacks power critical motor systems in:
- Drone Propulsion Systems: Agricultural spraying drones, delivery UAVs, FPV racing, heavy-lift cargo drones.
- eVTOL (Urban Air Mobility): High-torque density stator stacks for lift+cruise configurations.
- Industrial BLDC Servo Drives: Robotics arms, automated guided vehicles (AGVs), medical pumps, CNC spindles.
- Light Electric Vehicles: E-scooters, e-bikes, and high-speed powertrain motors.
⚙️ 5-Step Engineering Selection for Stator Stacks
- Define motor dimensions & slot/pole combination: e.g., 12N14P, 24N28P – this determines stator stack geometry and tooling requirements.
- Calculate electrical loading & target torque density: Provide motor kV, rated power, and maximum RPM to our engineering team.
- Select lamination material & thickness: For high-frequency (>30kHz) use 0.15mm grade; for cost-optimized industrial use 0.35mm; 0.20mm balances performance and cost.
- Specify insulation coating: Reenives offers epoxy powder coating (40-80µm, 1800V dielectric, thermal class H). Edge coverage ≥98% prevents inter-lamination shorts.
- 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: Reenives supports custom notching patterns, stepped skewing for cogging torque reduction, and private mould development. Send your motor specifications for a free feasibility study and rapid quotation.
❓ FAQ – Stator Stack Technical Deep Dive
📢 Request Your Custom Stator Stack – Engineer Support & Free Sample
⚡ Upgrade your drone propulsion with Reenives – China’s Top1 stator stack supplier for BLDC motors.
✔️ Private mould & tailor-made geometries
✔️ Free technical consultation + prototype samples (up to 5 sets)
✔️ Global shipping with full export documentation
🏭 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 | Precision stator stacks for global drone & BLDC motor manufacturers.
© 2025 Reenives – A Division of Dongguan Runlu Motor Technology Co., Ltd. All specifications are engineering references. Contact for latest datasheets.
Reenives: Pioneer of UAV FPV Drone BLDC Stator Stack Supplier in China
Reenives: High-precison Drone BLDC Motor Stator Lamination Core Supplier in China
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