Reenives: Global Leading 3 Phase Brushless Motor Stator Lamination Supplier
3 Phase Brushless Motor Stator Lamination: Global Leading Precision for Drone, UAV & eVTOL Propulsion
- 1. What is a 3 Phase Brushless Motor Stator Lamination?
- 2. 3 Phase Brushless Stator Lamination Classifications
- 3. Technical Specs & Verified Data
- 4. UAV, FPV & eVTOL Applications
- 5. 5-Step Engineering Selection Guide
- 6. FAQ – Critical Technical Pain Points
- 7. Summary & Call to Action
- 8. Dongguan Runlu Motor Technology Co., Ltd.
1. What is a 3 Phase Brushless Motor Stator Lamination? (The Foundation of Brushless Motor Efficiency)
A 3 phase brushless motor stator lamination is a precision-stamped sheet of electrical steel that, when stacked, forms the stationary core of a three-phase brushless motor used in drones and unmanned aerial vehicles. Each lamination is electrically insulated from its neighbors—typically by an epoxy coating—to block eddy currents that would otherwise circulate within the core and generate heat. The stator lamination geometry directly determines the motor's torque, efficiency, and thermal behavior.
Reenives manufactures high-quality 3 phase brushless motor stator laminations using non-grain oriented electrical steel (0.15-0.35mm) with advanced C5/C6 epoxy coating — reducing eddy current losses by up to 35% and ensuring high thermal stability for sustained drone operation.
2. 3 Phase Brushless Stator Lamination Classifications
Reenives offers 3 phase brushless motor stator laminations in multiple configurations to meet diverse UAV application requirements:
- By Slot/Pole Config: 9N12P (high RPM racing), 12N14P (balanced torque/speed for UAVs, DLRK), 18N20P (high torque density), 24N28P (heavy-lift / eVTOL).
- By Material Thickness: 0.15mm (ultra-high performance FPV, 6S), 0.20mm (standard high-frequency UAV), 0.27mm (aerial photography), and 0.35mm (heavy-lift industrial).
- By Core Architecture: Segmented stator laminations (modular for easy winding, ideal for 5-7 inch FPV racing) and integrated circular laminated stacks (one-piece for heavy-lift agricultural drones).
- By Insulation Coating: C5 epoxy powder coating (Class H, 180°C) with >2000V dielectric strength; C6 grade for superior thermal conductivity and corrosion resistance (salt spray >96h).
- By Stacking Method: Interlocking self-bonding (≥0.27mm), laser welding, or epoxy bonding (ultra-thin laminations below 0.25mm).
💡 Reenives specialty: private mould development for custom 3 phase brushless stator lamination geometries — optimized for specific UAV platforms from FPV racing to heavy-lift logistics.
3. Technical Specifications & Verified Performance Data
All parameters validated by Reenives R&D center (ISO 9001:2025 certified) and third-party testing per IEC 60404-2. Independent testing on drone motors with Reenives stator laminations shows 12% higher torque density and 9°C lower winding temperature after 10-min hover compared to industry standard cores.
| Parameter | Value / Range | Test Standard / Source |
|---|---|---|
| Lamination Thickness | 0.15mm / 0.20mm / 0.27mm / 0.35mm (±0.005mm) | Micrometer / SPC control |
| Core Loss @400Hz/1.0T (0.20mm) | ≤ 8.9 W/kg | Epstein frame (IEC 60404-2) |
| Core Loss @400Hz/1.0T (0.35mm) | ≤ 13.8 W/kg | Epstein frame (IEC 60404-2) |
| Magnetic Flux Density B50 | 1.68T – 1.73T | Hysteresisgraph |
| Stacking Factor (Interlocked) | ≤ 98.2% | Weight / Dimension method |
| Stacking Factor (Bonded) | ≤ 98.6% | Weight / Dimension method |
| Epoxy Coating Dielectric | >2000V, Class H (180°C) | ASTM D149 / IEC 60085 |
| OD Range (Drone Laminations) | 8mm – 260mm (custom) | Reenives engineering capability |
| Torque Density Advantage | +12-18% vs. industry avg | Independent drone motor test |
📐 Data source: Reenives in-house quality lab, 2025–2026. SGS verification report available. Full batch traceability and material certificates.
4. Applications – UAV, FPV & eVTOL Drone Motors
Reenives 3 phase brushless motor stator laminations power critical UAV applications across multiple sectors:
- FPV Racing & Cinematic Drones: 2207, 2306, 2507 stators with 0.15-0.20mm laminations for 45,000+ RPM and 92%+ peak efficiency.
- Agricultural Spraying Drones: High-torque stators with wide slots for thicker copper windings, 0.27mm laminations for enhanced cooling, and C5/C6 epoxy coating for 500h+ salt spray resistance.
- Delivery & Logistics Drones: 12N14P / 18N20P stators for 15-50kg payload with >92% efficiency at cruise and extended range.
- eVTOL & Urban Air Mobility: Aviation-grade punching with fault-tolerant stator design and redundancy for mission-critical operations.
- Surveying & Mapping UAVs: Low-vibration stators with 0.20mm laminations for 45+ minute endurance flights.
5. 5-Step Engineering Selection Guide for 3 Phase Brushless Stator Laminations
- Define power, RPM, and thrust requirements: For FPV racing (>40,000 RPM), select 0.15-0.20mm laminations. For heavy-lift UAVs (15,000-25,000 RPM), 0.20-0.27mm is optimal.
- Choose lamination material thickness: 0.15mm for premium ultra-high-speed FPV performance; 0.20mm for standard UAV; 0.35mm for robust industrial drone applications.
- Select slot/pole combination: 9N12P for high RPM racing, 12N14P for balanced torque/speed (most common for UAVs), 18N20P for high torque density heavy-lift.
- Specify insulation and environmental protection: C5/C6 epoxy coating for outdoor UAVs; anti-corrosion treatment for maritime/agricultural drones.
- Request samples and validation: Reenives delivers first-article inspection reports (FAI) and material certificates. Prototype 3 phase brushless stator lamination samples ready in 7-10 days after design approval.
💡 Engineering support: Free DFM within 48h and FEA simulation — send your drone motor spec or drawing to linda_reenives@163.com.
6. FAQ – Critical 3 Phase Brushless Motor Stator Lamination Technical Pain Points
Reenives recommends 0.15mm ultra-thin silicon steel for FPV motors operating above 40,000 RPM. Core loss is ≤8.9 W/kg @400Hz/1.0T, ensuring minimal heat generation during aggressive racing. For most UAV applications, 0.20mm offers the optimal balance of performance and cost.
Our interlocked stacks achieve ≥ 98.2% stacking factor, while bonded cores reach 98.6% for maximum torque density. This directly increases magnetic flux density by ~6% compared to 96% stacking factor, improving motor torque density and drone efficiency.
Reenives epoxy coating (40±5μm thickness) provides >2000V dielectric strength and thermal conductivity >0.85 W/m·K — 2x higher than standard C3 coatings. This reduces inter-lamination hotspot temperatures by 12-15°C during sustained hovering, critical for agricultural and long-endurance drone applications. C6 grade offers superior corrosion resistance for maritime operations.
Yes. Reenives supports private mould development for any custom 3 phase brushless stator lamination geometry, from 8mm micro cores to 260mm heavy-lift stators. Submit 2D/3D drawing; MOQ from 500 pcs. Tooling lead time: 20 days; prototype samples: 7 days.
Absolutely. Our C5/C6 epoxy coating and 0.20mm grade maintain magnetic properties at -20°C to 180°C. The insulation withstands partial discharge at altitudes up to 5000m — critical for surveying and delivery drones operating at high altitude.
7. Summary & Call to Action – Power Your Next-Generation Drone Motor
🚀 Ready to Optimize Your 3 Phase Brushless Motor Stator Lamination?
Reenives delivers global leading 3 phase brushless motor stator laminations with 0.15-0.35mm epoxy-coated steel, optimized geometry, and proven field performance. From FPV racing to heavy-lift UAVs and eVTOL, we are your strategic 3 phase brushless stator partner.
📦 Request Free 3 Phase Brushless Stator Lamination Samples & Quote
📧 linda_reenives@163.com | 💬 WhatsApp: +86-13377741885
Global shipping with full export documentation. Virtual factory tour & sample service available. Prototype 3 phase brushless motor stator lamination samples ready in 7 days.
8. Dongguan Runlu Motor Technology Co., Ltd.
Reenives — Global Leading 3 Phase Brushless Motor Stator Lamination Supplier | UAV, FPV & Industrial Motor Core Specialist
Dongguan Runlu Motor Technology Co., Ltd. | www.reenives-bldcmotor.com | WhatsApp: +86-13377741885
Follow us: LinkedIn / YouTube / Facebook @ReenivesMotor
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