Reenives: Global Leading Car Stator Lamination Supplier
Car Stator: High-Efficiency Laminations for Automotive & UAV BLDC Motors
1. What is a Car Stator? (The Core of Automotive & UAV Traction Motors)
A car stator (automotive stator) is the laminated steel core used in electric vehicle traction motors, as well as high-performance UAV propulsion systems. It consists of stacked silicon steel laminations with precision slots for copper windings. When energized by an inverter/ESC, the stator generates a rotating magnetic field that drives the rotor .
Reenives manufactures car stator laminations using high-permeability electrical steel (0.20mm/0.35mm) with advanced epoxy powder coating — reducing eddy current losses by up to 35% compared to conventional insulation .
2. Car Stator Lamination Classifications
Reenives offers car stator laminations in multiple configurations to meet automotive and UAV motor requirements :
- By Slot/Pole Config: 12N8P, 12N14P, 18N20P, 24N28P (EV traction / UAV heavy-lift) .
- By Material Thickness: 0.20mm (high-frequency, 600V-800V systems) and 0.35mm (general automotive).
- By Insulation Coating: Epoxy powder coating (Class H, 200°C for EV applications) .
- By Cooling Design: Oil-cooled or water-jacket compatible slot geometries .
💡 Reenives specialty: private mould development for custom slot profiles — optimized for high torque density and thermal management .
3. Technical Specifications & Verified Performance Data
All values derived from Reenives in-house R&D lab and third-party testing per IEC 60404-2, SAE J2360, and ASTM A912. Critical for automotive and UAV motor designers .
| Parameter | Value / Range | Test Standard / Source |
|---|---|---|
| Lamination Thickness | 0.20mm / 0.35mm (tolerance ±0.005mm) | Micrometer / SPC control |
| Core Loss @400Hz/1.0T (0.20mm) | ≤ 9.2 W/kg | Epstein frame (IEC 60404-2) |
| Core Loss @400Hz/1.0T (0.35mm) | ≤ 13.8 W/kg | Epstein frame (IEC 60404-2) |
| Saturation Flux Density B50 | 1.70T – 1.75T | Hysteresisgraph |
| Epoxy Coating Dielectric | >1800V, Thermal Class H (200°C) | ASTM D149 / IEC 60085 |
| Stacking Factor | ≥97.5% (epoxy bonded) | Weight / Dimension method |
| OD Range (Automotive/UAV) | 35mm – 250mm | Reenives engineering capability |
📐 Data source: Reenives quality assurance lab, 2025. Full batch traceability and test certificates available.
4. Applications – Automotive & UAV Motors
Reenives car stator laminations enable high-efficiency electric propulsion across multiple sectors:
- Electric Vehicle Traction Motors: 48V–800V systems, including e-bikes, e-scooters, and passenger EVs .
- Heavy-Lift UAVs & eVTOL: 12N14P / 18N20P configurations for 15-30kg payload .
- Industrial BLDC Actuators: Robotic arms, servo drives, and medical equipment .
- High-Speed FPV Racing Drones: 2207, 2306 stators using automotive-grade materials .
5. 5-Step Engineering Selection Guide for Car Stators
- Define voltage and power rating: Select lamination thickness based on inverter switching frequency (e.g., 0.20mm for >10kHz PWM) .
- Determine stator OD and stack length: Match to your motor housing and torque targets (e.g., 48mm OD for 5kW EV motor) .
- Select slot/pole combination: 12N8P for high-speed, 12N14P for balanced torque-density, 18N20P for high torque .
- Specify insulation and cooling: Epoxy coating for general use; oil-resistant coating for direct oil-cooled motors .
- Request samples and validation: Reenives delivers first-article inspection reports (FAI) and material certificates for PPAP .
💡 Engineering support: Free DFM within 48h — send your motor spec or drawing to linda_reenives@163.com.
6. FAQ – Critical Car Stator Technical Pain Points
Reenives recommends 0.20mm high-silicon steel (20WTG1500) for 800V systems with switching frequencies above 8kHz. Core loss is ≤9.2 W/kg @1.0T/400Hz, ensuring minimal heat generation .
Our epoxy coating is rated Class H (200°C) continuous, with peak short-term tolerance up to 220°C for automotive and UAV applications .
Slot geometry impacts copper fill factor and thermal dissipation. Reenives optimizes slot profiles for ≥92% fill factor and improved cooling channels, reducing winding temperature by up to 15°C .
Yes. We offer oil-compatible epoxy coatings and slot designs with optimized cooling channels. Passes 1000h oil immersion test per SAE J2360 .
Mold development: 25-30 days; sample delivery: 7-10 days after mold completion; mass production: 15-20 days for orders under 10,000 pcs. Global shipping with full export documentation .
7. Summary & Call to Action – Power Your Next-Generation Motor
🚀 Ready to Upgrade Your Car Stator?
Reenives delivers precision car stator laminations with 0.20mm epoxy-coated steel, tight tolerances, and proven field performance. From EV traction to high-performance UAV motors, we are your strategic stator core partner.
📦 Request Free Stator Samples & Quote
📧 linda_reenives@163.com | 💬 WhatsApp: +86-13377741885
Global shipping with full export documentation. Virtual factory tour & sample service available.
8. Dongguan Runlu Motor Technology Co., Ltd.
Reenives — Global Leading Car Stator Lamination Supplier | Automotive & UAV 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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