Reenives: Trustworthy BLDC Outrunner Drone Rotor Stator Laminations Manufacturer in Russia

author: Zove

2026-05-15

Precision rotor stator lamination sets for outrunner drone motors. Low loss, matched pairs. Reenives – trusted supplier.

Rotor Stator for BLDC Outrunner Drone Motors – Reenives: Trustworthy Rotor & Stator Laminations Manufacturer in Russia

⚙️ Drone motor engineers & procurement specialists: Frustrated by mismatched rotor-stator gaps, high iron losses, or inconsistent lamination quality that reduce outrunner motor efficiency and cause overheating?

Reenives delivers precision-engineered rotor stator lamination sets for BLDC outrunner drone motors, FPV, and industrial applications. Using 0.20mm / 0.35mm non-grain oriented silicon steel, epoxy coating, and micron-level stamping, we ensure optimal air gap consistency, low eddy currents, and high torque density. As a trusted partner for Russian drone manufacturers, we offer complete rotor and stator stack solutions, private moulds, and free samples with fast export logistics.

📑 Article Contents

1. Rotor Stator Definition
2. Types & Configuration for Outrunner Motors
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 Rotor Stator in BLDC Outrunner Motors? (Complete Magnetic Circuit)

In brushless DC motors, the rotor stator pair forms the complete electromagnetic circuit. The stator (stationary laminated core with windings) generates rotating magnetic field, while the rotor (permanent magnet carrier – also often laminated for flux focusing in outrunner designs) rotates around it. For outrunner drone motors, the rotor is the outer shell with magnets and a back-iron lamination stack. Reenives manufactures both stator stacks and rotor back-iron laminations using identical high-grade silicon steel, ensuring matched magnetic properties and thermal expansion.

🖼️ [Product Image] Reenives complete rotor+stator lamination set for outrunner drone motor – stator stack (12-slot) + rotor back-iron ring (14-pole), epoxy coated, 0.2mm material.
*Actual production set for 2207 outrunner motor (Russia customer sample batch)*

🏭 Classification of Rotor Stator Lamination Configurations

Reenives offers integrated or separate rotor/stator lamination solutions for outrunner and inrunner topologies:

🔹 Outrunner stator stack – fixed inner core with slots for windings, usually with epoxy coating for insulation.
🔸 Outrunner rotor back-iron – cylindrical laminated ring that supports permanent magnets, often interlocking or bonded.
🔹 Matched rotor-stator set – optimized air gap design, same material grade and coating for uniform magnetic performance.
🔸 High-RPM inrunner sets – for smaller diameter, higher speed applications (e.g., ducted fans).

Reenives uses progressive stamping dies for both stator and rotor laminations, ensuring concentricity ≤0.03mm for perfectly matched air gaps.

📊 Rotor Stator Lamination Specifications & Reenives Certified Data

Component / Parameter	Reenives Value / Range	Industry Benchmark / Source
Stator & Rotor material	0.20mm (20PN120), 0.35mm (35PN210, M330-35A)	Core loss ≤10 W/kg @1.0T/400Hz (0.20mm)
Burr height (both)	≤0.015mm (typical 0.008mm)	IEC 60404-11 Class 1
Stator stack height tolerance	±0.03mm (custom ±0.015mm)	Ensures uniform winding insertion
Rotor back-iron concentricity	≤0.03mm TIR	Critical for air gap uniformity
Stacking factor (both)	≥97% (0.20mm), ≥97.2% (0.35mm)	Weight/volume method
Epoxy coating thickness	40–80µm, pinhole-free	Dielectric strength >2000V, Class H (180°C)
Typical slot/pole combos (outrunner)	12N14P, 24N28P, 36N42P	Skewed stator or rotor optional
Rotor ID / stator OD clearance	0.3–0.8mm (customizable)	Optimized for torque vs. cogging

📐 Data Source All parameters verified by Reenives R&D lab (ISO 9001:2025) and third-party test reports. Full rotor-stator set characterization available.

🚁 Applications – Outrunner Drone Motors & Industrial BLDC Systems

Our rotor stator lamination sets power demanding motion systems:

FPV racing outrunner motors – 2207, 2306, 2507 sizes, high efficiency at 48kHz PWM.
UAV surveillance & agriculture – 40–100mm stator OD for heavy-lift drones (up to 70kg payload).
eVTOL / air taxis – high torque density axial-flux outrunner configurations.
Industrial BLDC servos & hub motors – robotics, e-scooters, power tools.

🖼️ [Application Scenario] Reenives rotor stator set integrated into a Russian-made outrunner drone motor (40mm stator OD, 24N28P). Field test: 9% higher torque density, 6°C lower temperature rise vs. conventional laminations. (Moscow customer validation, 2026)

⚙️ 5-Step Engineering Selection for Rotor Stator Lamination Sets

Optimize your outrunner motor’s magnetic circuit with this professional workflow:

Define motor outer dimensions & topology – stator OD, rotor back-iron ID, stack heights for both components.
Select lamination thickness – 0.20mm for high-frequency outrunners (FPV); 0.35mm for industrial or cost-sensitive designs.
Specify slot/pole combination – 12N14P for low torque ripple; 24N28P for high torque (heavy-lift).
Choose coating & bonding – epoxy coat both stator and rotor for weather resistance; interlocking for high RPM.
Verify air gap & concentricity – Reenives provides matched set samples with runout report and core loss curves.

Pro tip: For cold-climate operation (Russian winters), specify low-temperature epoxy coating (rated to -40°C) to avoid brittleness and maintain insulation resistance.

❓ FAQ: Rotor Stator Technical Pain Points & Solutions

1. What is the optimal air gap between stator and rotor for outrunner drone motors?

For most outrunner drones (stator OD 22–40mm), optimal air gap is 0.35–0.6mm. Reenives guarantees concentricity ≤0.03mm, enabling consistent gap and reduced cogging torque. Source: Reenives design guide & finite element analysis.

2. Do rotor back-iron laminations need epoxy coating like stator stacks?

Yes – epoxy coating on rotor laminations prevents eddy currents induced by magnet movement and protects against corrosion. Reenives applies identical coating to both stator and rotor for matched thermal expansion. Source: Reenives coating process specification.

3. How does lamination thickness affect rotor stator set performance?

Thinner laminations (0.20mm) reduce eddy current losses at high frequencies (>30kHz), essential for FPV racing. Thicker (0.35mm) lowers cost but increases core loss by ~20–30%. Reenives recommends 0.20mm for high-performance outrunners. Source: Reenives material test report.

4. What is the maximum stack height for a matched rotor stator set?

Reenives can produce stator stacks up to 100mm and corresponding rotor back-iron stacks up to 100mm. For outrunner motors, typical ratio stator stack height : stator OD is 0.2–0.5. Custom heights available. Source: Reenives production capability.

5. Do you supply fully assembled rotor (with magnets) or just laminations?

We supply precision rotor back-iron laminations and stator stacks. For rotor assembly, we can also provide magnet bonding services upon request (including N52SH magnets). Please inquire for complete rotor assembly options. Source: Reenives custom assembly team.

🎯 Summary – Reenives: Your Trustworthy Rotor Stator Lamination Partner in Russia & Beyond

From Moscow to Novosibirsk, leading drone manufacturers rely on Reenives (Dongguan Runlu Motor Technology Co., Ltd.) for high-performance rotor stator lamination sets. Our vertically integrated production – progressive dies, epoxy coating, automated stacking – ensures matched magnetic properties, tight tolerances, and ultra-low losses. We support private mould development, bulk purchasing, and free samples, with full export documentation and fast shipping to Russia. Enhance your outrunner motor efficiency with Reenives precision laminations.

🔧 Request Free Rotor Stator Sample Set & Engineering Review
Get matched stator and rotor laminations optimized for your outrunner drone motor.
🌐 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 & Rotor Stator Lamination 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!