Reenives: High-precision 0.2mm Drone Motor Stator Lamination Stack Manufacturer in Brazil

author: Zove

2026-05-14

High-precision 0.2mm stator lamination stack for drone motors. Low loss, epoxy coated. Reenives – trusted global supplier.

Stator Lamination Stack – High-Precision 0.2mm Drone Motor Stator Stack | Reenives: Leading Manufacturer in Brazil

⚡ Drone motor engineers & procurement leaders: Struggling with excessive eddy current losses, poor stacking factor, or inconsistent lamination thickness that reduces flight time and motor lifespan?

Reenives delivers ultra-precision stator lamination stacks using 0.2mm ultra-thin silicon steel – specifically engineered for high-frequency drone UAV and FPV motors. Our progressive die stamping, epoxy powder coating, and tightly controlled stacking process reduce core loss by up to 28% while improving torque density. As the trusted partner for Brazilian drone manufacturers, we offer fast lead times, private mold development, and free sample validation. Maximize your motor efficiency with Reenives’ high-precision stator stacks.

📑 Article Contents

1. Stator Lamination Stack Definition
2. Types & Stacking Technologies
3. Technical Parameters + Data Source
4. UAV / FPV & Industrial Applications
5. 5-Step Selection Guide
6. FAQ – Core Technical Pain Points
7. Summary & Contact Reenives
8. About Reenives – Strength & Scale

🧲 What is a Stator Lamination Stack? (Core of Drone BLDC Motors)

A stator lamination stack is a precision-assembled column of thin electrical steel sheets (lamination stampings) that form the stationary magnetic core of a brushless motor. In drone UAV/FPV applications, the stator lamination stack directly influences magnetic flux density, iron loss, and thermal performance. Reenives produces stacks using 0.2mm non-grain oriented silicon steel with epoxy interlaminar insulation, achieving stacking factors ≥97% and burr-free edges for error-free winding insertion.

🖼️ [Product Image] Reenives 0.2mm stator lamination stack – 12-slot, epoxy coated, stack height 12mm, OD 28mm, precision interlocking design for FPV drone motors.
*Actual production stack sample (Brazil customer prototype batch)*

🏭 Classification of Stator Lamination Stack Technologies

Based on stacking method and insulation type, Reenives offers three main stator lamination stack solutions:

🔗 Interlocking (self-locking) stack – mechanical dovetail or V-notch interlocking, no adhesives, high mechanical strength, ideal for high-RPM drone motors (>30,000 rpm).
🧪 Epoxy-bonded stack – full-surface or spot-bonded with thermosetting epoxy, excellent vibration damping and corrosion resistance, preferred for heavy-lift UAVs and high-humidity environments.
⚡ Laser or TIG welded stack – cost-effective for larger industrial motors, suitable for low-to-medium frequency operation.

Reenives’ dust-free production workshops and automatic stacking presses guarantee stack height tolerance ±0.03mm and interlaminar resistance >100MΩ after coating.

📊 Stator Lamination Stack Technical Specifications & Certified Data (0.2mm Grade)

Parameter	Reenives 0.2mm Stack Value	Industry Benchmark / Source
Material grade (silicon steel)	20PN120 (0.20mm), 27PN140 (0.27mm optional)	Core loss ≤ 10 W/kg @1.0T/400Hz (20PN120)	IEC 60404-2
Lamination thickness tolerance	±0.008mm per sheet	ASTM A34/A34M
Burr height (max)	≤0.015mm (typical 0.008mm)	IEC 60404-11 Class 1
Stack height tolerance	±0.03mm (custom ±0.015mm)	Ensures uniform air gap
Stacking factor (0.2mm material)	≥97.2% (by weight/volume method)	Higher active material density
Epoxy coating thickness	40–80µm, pinhole-free	Dielectric strength >2000V, Class H (180°C)
Slot/pole combos (drone)	9N12P, 12N14P, 24N28P, 36N42P	Skewed or non-skewed available
Surface insulation resistance	>100 MΩ @ 500VDC	ASTM D257

📐 Data Source All parameters validated by Reenives R&D lab (ISO 9001:2025) and third-party reports. Full core loss curve and sample stack report available on request.

🚁 Applications – FPV Racing, UAV Surveillance & Industrial BLDC Motors

Our stator lamination stacks are engineered for high-demand environments:

FPV racing drones – 2207, 2306, 2507 sizes, with 0.2mm stacks for low eddy loss at 48kHz PWM.
UAV surveillance & agriculture – 40–80mm OD stacks for heavy-lift drones (up to 50kg payload).
eVTOL / urban air mobility – high torque density, low weight stacks with integrated cooling paths.
Industrial BLDC motors – robotics, power tools, electric vehicle auxiliary drives.

🖼️ [Application Scenario] Reenives 0.2mm stator lamination stack installed in a Brazilian-made FPV racing motor (28mm OD, 12N14P). Field test: 28% reduction in core loss, motor temperature lowered by 9°C, and 2.1 minutes extended flight endurance. (São Paulo customer validation, 2026)

⚙️ 5-Step Engineering Selection for Stator Lamination Stack

Optimize your motor’s electromagnetic and thermal performance with this professional workflow:

Define stack dimensions – outer diameter (OD), inner diameter (ID), and stack height based on torque/speed requirements.
Select lamination thickness – 0.2mm for high-frequency drone motors (>30kHz ESC); 0.35mm for cost-sensitive industrial designs.
Choose stacking method – interlocking for RPM >30k; epoxy bonding for thermal stability and harsh environments.
Specify slot/pole combination – 12N14P for low torque ripple (FPV racing), 24N28P for high torque (heavy-lift).
Request prototype stack samples – Reenives provides free pre-production stacks with full dimensional report and Epstein core loss test.

Pro tip: For Brazilian agricultural drones operating in high humidity and dust, specify epoxy-coated stacks with IPM (insulation protection) and edge sealing to prevent corrosion and inter-laminar shorts.

❓ FAQ: Stator Lamination Stack Technical Pain Points

1. What is the typical core loss for a 0.2mm stator lamination stack at 40kHz for FPV motors?

For Reenives 20PN120 0.2mm silicon steel, specific core loss is ≤ 10 W/kg @ 1.0T, 400Hz. At 40kHz PWM (scaled), the increase follows Steinmetz equation; our material keeps eddy loss 28% lower than standard 0.35mm stacks. Source: Reenives material datasheet & Epstein frame test report 2025.

2. How does epoxy coating affect the stator lamination stack's insulation and thermal performance?

Epoxy powder coating (40–80µm) provides electrical insulation >100MΩ at 500VDC and dielectric strength >2000V. It also improves thermal conductivity (~0.8 W/m·K), reducing hot spots. Salt spray resistance >96h per ASTM B117 ensures reliability in humid conditions. Source: Reenives coating process control & ASTM standards.

3. What stacking factor can be realistically achieved with 0.2mm laminations?

Reenives achieves stacking factor ≥97.2% for 0.2mm interlocking stacks (measured by actual stack weight / theoretical density of solid steel). Our high-pressure stacking eliminates air gaps, boosting magnetic flux density. Source: Reenives production QA data (2026 batch).

4. Which slot/pole combination minimizes torque ripple for 2306 FPV racing motors?

For 2306 stator dimensions (OD 23mm, stack 6mm), the optimal combination is 12N14P with 5° skew. Reenives offers skewed lamination stacks without extra tooling cost for orders >5000 pcs. Source: Reenives motor design guide for UAV applications.

5. Do you support custom stack geometries (non-standard slot shapes, stepped stacks)?

Yes – Reenives develops private moulds based on customer 2D/3D drawings (DXF, STEP). Minimum tooling order starts at 10,000 stacks, with free engineering consultation and sample approval. Stepped or tapered stacks are also available upon request. Source: Reenives custom tooling team.

🎯 Summary – Reenives: Your High-Precision Stator Lamination Stack Partner in Brazil & Worldwide

From São Paulo to Manaus, leading drone manufacturers trust Reenives (Dongguan Runlu Motor Technology Co., Ltd.) for high-quality stator lamination stacks. Our vertically integrated process – from progressive die design to 0.2mm stamping, epoxy coating, and automated stacking – ensures ultra-low core loss, tight tolerances, and consistent performance. We support private mould development, bulk purchasing, and free samples, shipped globally with full export documentation. Elevate your BLDC motor performance with Reenives precision stacks.

🔧 Request Free 0.2mm Stator Lamination Stack Samples & Engineering Review
Get custom stacks optimized for your drone FPV or industrial motor design.
🌐 Official Website: www.reenives-bldcmotor.com
📱 WhatsApp (Global): +86-13377741885
✉️ Email: linda_reenives@163.com
📩 Inquire for Custom Quote or Free Sample →

🏢 Dongguan Runlu Motor Technology Co., Ltd.

Reenives – Professional Drone Stator Core Manufacturer & Stator Lamination Stack Expert

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 development, 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!