Reenives: Global Leading Stator Stamping Supplier
Stator Stamping: Precision Lamination Manufacturing for UAV, Drone & High-Performance BLDC Motors
1. What is Stator Stamping? (The Foundation of Every BLDC Stator Core)
Stator stamping is the precision manufacturing process of punching silicon steel sheets into stator laminations using high-speed progressive dies. This process determines the dimensional accuracy, burr height, and magnetic properties of every stator lamination stack — directly impacting motor efficiency, torque, and thermal performance .
Reenives operates stator stamping lines with imported high-speed presses (up to 600 SPM) and in-die quality monitoring — delivering laminations with burr height ≤0.015mm and consistent stacking factor .
2. Stator Stamping Classifications
Reenives offers stator stamping services across multiple configurations to meet diverse application requirements :
- By Slot/Pole Config: 9N12P, 12N14P, 18N20P, 24N28P stator laminations .
- By Material Thickness: 0.20mm (high-frequency UAV/FPV) and 0.35mm (general industrial).
- By Die Type: Progressive dies, compound dies, and transfer dies — optimized for high-volume production .
- By Post-Processing: Epoxy powder coating, annealing, and stacking (interlocking or epoxy bonded) .
💡 Reenives specialty: private mould development for any custom stator lamination geometry — with AI vision inspection ensuring flawless stamping quality .
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, SAE J2360, and ASTM A912. Critical for stator stamping quality assurance .
| Parameter | Value / Range | Test Standard / Source |
|---|---|---|
| Lamination Thickness | 0.20mm / 0.35mm (tolerance ±0.005mm) | Micrometer / SPC control |
| Burr Height (Max) | ≤ 0.015mm (0.20mm) / ≤ 0.020mm (0.35mm) | Optical measurement / VDI 2906 |
| Stamping Speed | Up to 600 SPM (progressive die) | Press monitor / Reenives QMS |
| Core Loss @400Hz/1.0T (0.20mm) | ≤ 9.2 W/kg | Epstein frame (IEC 60404-2) |
| Die Life (Between Regrinds) | ≥ 5 million strokes | Reenives tooling data |
| Stacking Factor (Epoxy bonded) | ≥97.5% | Weight / Dimension method |
| OD Range (Stator Laminations) | 18mm – 250mm | Reenives engineering capability |
📐 Data source: Reenives quality assurance lab, 2025–2026. Full batch traceability and test certificates available.
4. Applications – UAV, Drone & Industrial BLDC Motors
Reenives stator stamping services power critical applications across multiple sectors:
- FPV Racing & Cinematic Drones: 2207, 2306, 2507 stator stampings with instant throttle response .
- Commercial UAVs & eVTOL: 12N14P / 18N20P stator stampings for 15-30kg payload .
- Electric Vehicle Traction Motors: 48V–800V stator stampings for e-bikes, e-scooters, and passenger EVs .
- Industrial BLDC Actuators: Robotic arms, servo drives, and medical equipment .
- Agricultural Spraying Drones: High-torque stator stampings with dust/water-resistant epoxy coating .
5. 5-Step Engineering Selection Guide for Stator Stamping
- Define stator lamination geometry: Supply your stator design (2D/3D CAD) or request DFM support from Reenives .
- Choose material grade and thickness: 0.20mm for high-frequency UAV (40-80kHz PWM) / 0.35mm for robust industrial motors .
- Select die type and stamping speed: Progressive dies for high-volume (≥100k pcs/year); compound dies for prototype/low-volume .
- Specify post-processing requirements: Annealing, epoxy coating, or stacking (interlocking/bonding) .
- Request samples and PPAP validation: Reenives delivers first-article inspection reports (FAI) and material certificates for production approval .
💡 Engineering support: Free DFM within 48h — send your motor spec or drawing to linda_reenives@163.com.
6. FAQ – Critical Stator Stamping Technical Pain Points
Reenives guarantees burr height ≤ 0.015mm for 0.20mm stator laminations and ≤0.020mm for 0.35mm material — exceeding IEC 60404-8-3 standards for high-performance UAV motors .
We stamp non-grain oriented electrical steel grades: M400-50A, 20WTG1300, 20WTG1500, 35WW270, and equivalents from Baowu, Nippon, and ThyssenKrupp — with full material certification .
Poor stamping (burrs, taper, or misalignment) increases eddy current losses and reduces stacking factor. Reenives' in-die quality control ensures ≤0.015mm burr and consistent geometry, improving efficiency by up to 5% .
Yes. We offer oil-compatible stamping geometries and post-processing (epoxy coating) with optimized cooling channels. Passes 1000h oil immersion test per SAE J2360 .
Die development: 25-35 days; sample delivery: 7-10 days after die approval; mass production: 10-15 days for orders under 100,000 pcs. Global shipping with full export documentation .
7. Summary & Call to Action – Power Your Next-Generation BLDC Motor
🚀 Ready to Optimize Your Stator Stamping?
Reenives delivers precision stator stamping services with 0.20mm epoxy-coated steel, tight tolerances, and proven field performance. From UAV racing to EV traction, we are your strategic stator stamping partner.
📦 Request Free Stator Stamping 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 Stator Stamping Supplier | UAV, Drone & Industrial Motor Core Specialist
Dongguan Runlu Motor Technology Co., Ltd. | www.reenives-bldcmotor.com | WhatsApp: +86-13377741885
Follow us: LinkedIn / YouTube / Facebook @ReenivesMotor
Reenives:Global Leading Drone Motor Stacks Supplier
Reenives: Global Leading Motor Stamping Supplier
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