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Reenives: Leading Small Drone Motors Stator Lamination Supplier in China

author: Zove
2026-05-25
Premium small drone motors for OEM/ODM. High torque, low vibration, long flight time. Bulk orders & custom specs. Factory direct.
⚑ Engineering Resource | B2B Manufacturing

Small Drone Motors: High-Performance Stator Lamination Solutions for UAV & BLDC Motors

🚁 Engineers and procurement professionals: Are you struggling with excessive core loss, overheating in compact drone motors, or inconsistent magnetic performance? The stator lamination directly dictates efficiency, thrust-to-weight ratio, and flight endurance. Reenives delivers precision-engineered stator cores that slash eddy current losses by up to 28% while increasing torque density β€” purpose-built for small drone motors and universal BLDC platforms.

πŸ“‘ Article Directory

1. What is Stator Lamination for Small Drone Motors?

A stator lamination is a set of thin silicon steel sheets stacked and bonded/ welded together to form the magnetic core of a brushless DC motor. For small drone motors (size 12xx to 28xx series), laminations reduce eddy current losses and hysteresis, enabling higher RPM stability and lower thermal rise. Each lamination is precision stamped from non-oriented electrical steel, insulated coating applied, then stacked to create the stator teeth where copper windings generate rotating magnetic fields.

2. Classification & Material Grades

Stator laminations for small drone motors are classified by material grade, thickness, and coating:

  • 0.20mm ultra-thin – highest efficiency, 20kHz+ switching, racing drones.
  • 0.35mm high-grade – best balance for micro UAV & commercial drones.
  • 0.50mm economical – entry-level applications, high torque density.
  • Coating types: C5 (insulation coating for high temp), epoxy powder coating (corrosion resistance, improved interlaminar resistance).

Grade examples: 35PN210, 35WW300, 20WTG150 – sourced from Baosteel, Nippon Steel, or equivalent JIS/ ASTM standards.

3. Technical Parameters + Source Data

πŸ”¬ Engineering data (based on Reenives in-house lab & industry standard IEC 60404-2)

Parameter Value / Range Test Condition
Core loss (W/kg) @ 1.0T, 400Hz ≀ 12.5 W/kg (0.20mm) Epstein Frame
Magnetic flux density B50 (T) 1.65 – 1.72 T DC measurement
Stacking factor β‰₯ 96.5% Mechanical pressing
Insulation coating thickness 2~4 ¡m each side Surface resistance > 200 Ω·cm²
Temperature range -40Β°C ~ 180Β°C Class H insulation
Outer diameter (small drone) 16 mm – 52 mm Customizable

Data sources: Reenives internal material certification + third-party lab reports (SGS), compliant with RoHS & REACH.

4. Key Applications – Small Drone Motors & Beyond

Our stator laminations are optimized for small unmanned aerial vehicles (UAVs) and seamlessly apply to other brushless DC motor scenarios:

  • βœ… FPV Racing drones – 2004/2207/2306 motor platforms, requiring ultra-low inertia.
  • βœ… Camera drones / Gimbal motors – smooth torque, vibration damping.
  • βœ… Micro air vehicles (MAV) – 1S-4S battery systems, high efficiency.
  • βœ… Industrial BLDC motors – robotics, cooling fans, medical pumps.

5. Step-by-Step Stator Lamination Selection Guide (Engineer Focused)

Step 1
Determine outer/inner diameter & stack height β†’ match drone frame & winding window.
Step 2
Select material thickness: ≀0.20mm for high frequency (>40kHz), 0.35mm for general BLDC.
Step 3
Choose coating type: C3 for standard insulation, C5 epoxy for high humidity / dust environments.
Step 4
Define stacking method: interlocking, bonding or laser welding β†’ request sample validation.
Step 5
Validate with FEA & thermal simulation (Reenives provides free pre-sales engineering advice).

πŸ“Œ Pro tip: For small drone motors operating above 30,000 RPM, always prioritize 0.20mm lamination with low core-loss grade (e.g., 20PN series).

6. FAQ – Technical Core Concerns about Stator Lamination

❓ Q1: What typical core loss value should I expect for a 0.20mm small drone motor stator lamination at 600Hz?
Answer: For 0.20mm non-oriented silicon steel (e.g., 20WTG150), core loss is typically ≀18 W/kg @ 1.0T, 600Hz. Reenives guarantees <20 W/kg verified by Epstein test. Source: Reenives product spec sheet & IEC 60404-2 lab data.
❓ Q2: How does stacking factor affect motor torque output in small drone motors?
Answer: Stacking factor (SF) directly influences effective magnetic cross-section. Our standard SF β‰₯96.5% ensures maximum flux density; lower SF reduces torque by up to 12%. Reenives uses precision press stacking to achieve SFβ‰₯97% for drone series. Source: Reenives process capability study 2024.
❓ Q3: Can stator laminations be coated with epoxy for corrosion protection in outdoor drones?
Answer: Yes, Reenives offers full epoxy powder coating (green/blue insulation layer) that withstands salt spray >96h (ASTM B117). Ideal for agricultural/coastal drones. Source: Reenives coating lab test (report #RLC-2405).
❓ Q4: What’s the recommended tooth width to slot ratio for maximizing torque in 22mm stator?
Answer: For small drone motors (22mm stator OD), tooth width/slot pitch ratio between 0.45~0.55 yields optimal torque and minimized cogging. Reenives design library provides verified ratios for various poles/slots combos. Source: Reenives motor design handbook.
❓ Q5: Does Reenives support custom tooling (private mould) for non-standard stator shapes?
Answer: Absolutely. We support private mould development for unique geometry (asymmetric teeth, tapered slots). Lead time for progressive stamping die: 25~35 days. Source: Reenives engineering team.

7. Summary & Get Custom Solutions

Choosing the right stator lamination for small drone motors directly impacts flight time, thermal management, and reliability. Reenives combines advanced stamping lines (imported from Germany & Japan), epoxy powder coating dust-free workshops, and ISO9001:2015 quality system. Whether you need 0.20mm ultra-thin laminations for racing drones or bulk OEM orders for industrial BLDC motors, our team provides free sampling and engineering consultation.

✈️ Ready to boost your drone motor efficiency?
Get a free quotation, request samples, or discuss private mould development.

🌐 Official Website: www.reenives-bldcmotor.com
πŸ“ž WhatsApp: +86-13377741885 Β |Β  πŸ“§ Email: linda_reenives@163.com

⚑ Fast global shipping · Full export documentation · Factory direct

8. Dongguan Runlu Motor Technology Co., Ltd.

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 develop , 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!

🏭 Trusted brand: Reenives | LinkedIn: Reenives Motor Core | Alibaba verified supplier since 2022

πŸ“ Reenives – Leading small drone motors stator lamination supplier in China. Part of Dongguan Runlu Motor Technology Co., Ltd.
Follow us for technical updates: LinkedIn / Reenives Motor Core | Facebook @ReenivesBLDC | YouTube @ReenivesTech
✨ Google-indexed content β€” engineered for UAV & BLDC professionals. All specifications verified.

Β© 2025 Reenives β€” Precision stator core solutions. www.reenives-bldcmotor.com

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