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Big Motors > AirDrive (Drones/Fixed-wing)
The 4214 380KV brushless motor features an oversized stator design optimized for 6S battery systems in heavy-lift drones and industrial UAV applications. Engineered with high-grade N52H magnets and precision-balanced components, it delivers exceptional torque efficiency and thermal stability during sustained high-load operations. The motor's robust construction and corrosion-resistant coating make it ideal for agricultural spraying, professional cinematography, and industrial inspection platforms requiring reliable power delivery.
| Parameter | Specification |
| Motor Type | 3-Phase Sensorless BLDC (Outer Rotor) |
| Stator Size | 42×14mm (D×H) |
| KV Rating | 380 RPM/V ±3% |
| Pole Configuration | 12N14P |
| Rated Voltage | 6S LiPo (22.2V) |
| Max Continuous Power | 650W @ 22.2V |
| Peak Power | 1200W (30-second burst) |
| Max Thrust | 2.8kg/prop @ 22.2V |
| Phase Resistance | 0.12Ω (±5%) |
| Shaft Diameter | 6mm (Hardened Stainless Steel) |
| Weight | 198g (Excluding Wires) |
| Mounting Pattern | M3 (25×25mm) |
| Connectors | 4.0mm Gold Bullets |
• High-Torque Design: Oversized 42mm stator with 0.2mm silicon steel laminations
• N52H Magnets: High-energy neodymium with 200°C thermal tolerance
• Dynamic Balancing: <0.03g vibration at 10,000 RPM
• Thermal Management: Integrated cooling fins and air channels
• Corrosion Protection: Nickel-plated bell with salt-resistant coating
• Dual Ceramic Bearings: 8×22×7mm for >2000hr lifespan
• Phase Wires: 14AWG high-temp silicone (220°C rated)
• Reverse Thread Option: Available for pusher configurations
Tested with 15×5.5" Carbon Fiber Prop @ 22.2V (6S)
| Thrust | RPM | Current | Efficiency | Flight Time* |
| 1.6kg | 3,800 | 18A | 86% | 28min |
| 2.8kg | 5,500 | 32A | 82% | 22min |
| *With 6S 10,000mAh Li-ion battery |
• 10-12" agricultural spray drones (12L capacity)
• Cinema camera platforms (Sony FX3 payloads)
• Industrial inspection UAVs (>1kg payload)
• Search-and-rescue equipment carriers
• Pesticide pump drives
• Seed dispersal mechanisms
• Crop monitoring sensor platforms
• Fertilizer spreader motors
• Robotic arm joint actuators
• Conveyor belt drives
• Automated guided vehicle (AGV) propulsion
• Pump motor replacements
• Heavy gimbal stabilization systems
• Long-endurance filming platforms
• FPV camera drone lift systems
• Operating Temp: -20°C to +80°C
• Thermal Limit: 105°C (automatic power derating)
• IP Rating: IP55 (dust/water jet resistant)
• Altitude Performance: Maintains power up to 4,000m ASL
• Vibration Tolerance: 8G @ 20-2000Hz
• Chemical Resistance: Withstands pesticides, fertilizers, and fuels
• Storage Conditions: -30℃ ~ +60℃, <80% RH
• Service Life: 1,200+ flight hours