Reenives: Leading A2212 Brushless Motor Stator Core Supplier in China

author: Zove

2026-06-15

Precision A2212 brushless motor stators. 12N14P, low loss for drones. Reenives – trusted China supplier.

A2212 Brushless Motor Performance Upgrade | Reenives: Leading A2212 Brushless Motor Stator Core Supplier in China

✈️ Drone engineers & manufacturers: Your A2212 brushless motor losing thrust or overheating during flight? The stator core dictates magnetic efficiency and thermal limits. Reenives delivers precision-engineered stator cores for A2212 (12N14P) motors – optimized for 2200KV, 1400KV, and 1000KV variants. Reduce core loss by 25%, increase stable flight time. Trusted China supplier with global drone industry expertise.

🔧 What is an A2212 Brushless Motor Stator Core? (Definition)

The A2212 brushless motor stator core refers to a standardized 22mm stator outer diameter (2212 size class) with 12 slots and 14 poles (12N14P configuration). It is stacked from thin non-oriented silicon steel laminations, typically with stack height 12mm-18mm. This core geometry is widely used in drone propulsion, small UAVs, FPV, and robotic actuators. The quality of the stator core directly impacts torque ripple, max current handling, and overall motor efficiency at partial throttle.

A2212 brushless motor stator core - Reenives China supplier for drone motors

📌 Classification of A2212 BLDC Stator Cores

🔹 Outer Diameter22mm (standard A2212), custom 20-24mm

🔹 Material Grade20PN120 (0.20mm), 27PN140 (0.27mm), 35PN210 (0.35mm)

🔹 Pole/Slot Config12N14P (dominant), 9N12P available

🔹 Insulation CoatingEpoxy edge coating / Phosphate / C5

🔹 Stack Height12mm / 14mm / 16mm / 18mm (custom)

Reenives supplies drop-in replacement stators for popular A2212 motor series (Sunnysky, EMAX, DJI style) as well as fully customised designs for private label drone motors.

📊 Technical Parameters & Verified Data Sources

All parameters measured per IEC 60404-2 and GB/T 3655-2022. Core loss data validated by Reenives magnetic properties lab (2025 calibration, traceable to NIST).

Lamination thickness0.20mm (high-efficiency), 0.27mm (standard)

Iron loss @ 1.0T, 800Hz≤ 12.5 W/kg (0.20mm grade)

Saturation flux density B501.70T – 1.73T

Coating dielectric strength≥ 1800V (epoxy)

Max operating temp180°C (Class H)

Stacking factor>97% (interlocking or laser welding)

📐 Source: Reenives in-house Epstein frame & BH looper. Third-party validation available for volume orders.

🚁 Applications – A2212 Brushless Motors

Target platforms that use A2212 class motors:
• Drone propulsion (quadcopters, hexacopters, VTOL fixed-wing)
• FPV racing drones (2200KV high-speed variants)
• Small UAVs for mapping & agriculture
• Robotic actuators & gimbal motors
• DIY drone kits & education platforms
Reenives stator cores enable these applications to achieve higher thrust efficiency and lower operating temperatures.

A2212 brushless motor drone application - Reenives stator core China

⚙️ Engineering Selection Steps for A2212 Stator Core

Define KV rating & operating voltage: 2200KV for 3S-4S, 1000KV for 6S systems.
Select stack height: 12mm for lightweight drones, 16-18mm for heavy-lift.
Choose lamination thickness: 0.20mm for high-frequency >30,000 RPM, 0.27mm for cost-optimized.
Specify coating type: Epoxy edge coating mandatory for outdoor drone moisture protection.
Review core loss vs. frequency curve: Reenives provides BH & iron loss data per batch.
Validate dimensional tolerances: ID concentricity ≤0.02mm, flatness ≤0.02mm for smooth rotor fit.

Production line A2212 stator core Reenives China

❓ FAQ – Critical Stator Core Pain Points for A2212 Motors

1. What lamination thickness minimizes eddy current loss for high-KV A2212 motors (2200KV, 35,000+ RPM)?

For A2212 motors operating above 30,000 RPM with PWM frequencies 24-32kHz, 0.20mm (20PN120) ultra-thin silicon steel is recommended. It reduces high-frequency eddy current loss by up to 38% compared to 0.27mm laminations, directly improving thrust efficiency.

Source: Reenives loss comparison test at 800Hz / 0.8T, test ID A2212-0225.

2. How does epoxy edge coating affect A2212 stator thermal performance in drone applications?

Epoxy powder coating (45-65μm thickness) provides inter-lamination insulation while improving heat dissipation (thermal conductivity 0.85 W/m·K). In drone hover tests, coated stators run 10-12°C cooler than uncoated or oxide-coated counterparts, extending motor bearing life.

Source: Reenives thermal imaging report (IEC 60085, ambient 25°C).

3. What is the typical slot fill factor for an A2212 stator core with Reenives design?

Reenives optimized tooth geometry allows slot fill factor up to 88-91% (using automated winding machines). Higher fill factor increases copper cross-section, reducing I²R losses and improving torque density for racing drones.

Source: Reenives design guideline for 22mm BLDC stators v2.2.

4. Can Reenives supply stator cores with private mould for non-standard A2212 variants?

Yes, we support private mould development for any 22mm class stator (custom slot shape, tooth profile, mounting holes). Minimum sample order: 50 pcs. Lead time for new tooling: 18-22 days. Over 300+ custom BLDC stator moulds delivered.

Source: Reenives custom engineering team, 2025 catalog.

5. What core loss value should I expect at 1.0T / 600Hz for a standard A2212 stator (0.27mm material)?

Using Reenives 0.27mm grade 27PN140, typical iron loss ≤15.8 W/kg @ 1.0T / 600Hz. For premium 0.20mm grade, loss ≤10.2 W/kg. Each shipment includes Epstein test certification with batch traceability.

Source: Reenives QC data from 300+ A2212 batches, 2024-2025.

🎯 Summary – Power Your A2212 Drone Motors with Reenives Stator Cores

🚁 Leading China Supplier for A2212 BLDC Motor Cores

From FPV racing to commercial drones, Reenives delivers precision A2212 stator cores with ultra-low loss, epoxy insulation, and full material traceability. Fast global shipping, free engineering consultation, and sample support for qualified drone manufacturers.

📩 Request Sample & Technical Datasheet

📞 WhatsApp: +86-13377741885 | 📧 Email: linda_reenives@163.com
🌐 Official website: www.reenives-bldcmotor.com