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Big Motors > AirDrive (Drones/Fixed-wing)
The 4312-375KV brushless motor features an oversized 42mm stator design optimized for 6S-8S battery systems in heavy-lift drones and industrial UAVs. 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 with 22.2-33.6V input
| Parameter | Specification |
| Motor Type | 3-Phase Sensorless BLDC (Outer Rotor) |
| Stator Size | 42×12mm (D×H) |
| KV Rating | 375 RPM/V ±3% |
| Pole Configuration | 18N24P (Magnets/Poles) |
| Rated Voltage | 6S-8S LiPo (22.2-33.6V) |
| Max Continuous Power | 850W @ 33.6V (8S) |
| Peak Power | 1,500W (30-second burst) |
| Max Thrust | 3.2kg/prop @ 33.6V |
| Phase Resistance | 0.08Ω (±5%) |
| Shaft Diameter | 6mm (Hardened Stainless Steel) |
| Weight | 195g (Excluding Wires) |
| Mounting Pattern | M3 (19×19mm or 25×25mm) |
| Connectors | 4.0mm Gold Bullets |
• High-Torque Design: 42mm stator with 0.2mm silicon steel laminations for reduced eddy losses
• N52H Magnets: High-energy neodymium with 200°C thermal tolerance
• Dynamic Balancing: <0.03g vibration at 8,000 RPM
• Thermal Management: Integrated cooling fins and axial air channels
• Corrosion Protection: Nickel-plated bell with salt-resistant coating
• Dual Ceramic Bearings: 8×22×7mm for >2,000-hour lifespan
• Phase Wires: 14AWG high-temp silicone (220°C rated)
• Reverse Thread Option: Available for pusher configurations
Tested with 16×5.4" Carbon Fiber Prop
| Voltage | Thrust | RPM | Current | Efficiency |
| 22.2V (6S) | 2.1kg | 4,200 | 24A | 5.2g/W |
| 29.6V (8S) | 3.2kg | 5,600 | 38A | 4.8g/W |
• Agricultural spray drones (12-16L tanks)
• Cinema camera platforms (Sony FX3/RED Komodo)
• Industrial inspection UAVs (>2kg payload)
• Pesticide pump drives (6S-8S compatible)
• Seed broadcasting mechanisms
• Crop monitoring sensor platforms
• Robotic arm joint actuators
• Conveyor belt drives (8S high-efficiency mode)
• AGV (Automated Guided Vehicle) propulsion
• 3-axis gimbal lift systems
• Long-endurance filming platforms (30min+ flight time)
• Operating Temp: -20°C to +80°C
• Thermal Limit: 105°C (auto-derating activates @95°C)
• IP Rating: IP55 (dust/water jet resistant)
• Altitude Performance: Full power up to 4,000m ASL
• Vibration Tolerance: 10G @ 20-2000Hz
• Chemical Resistance: Withstands pesticides and fertilizers
• Storage Conditions: -30℃ ~ +60℃, <80% RH
• Service Life: 1,500+ flight hours