Big Motors > AirDrive (Drones/Fixed-wing)
The 4312 brushless motor is a titan-class outrunner engineered for extreme heavy-lift and industrial drone applications. Optimized for 14S-16S power systems with a precision 508KV rating, it delivers unmatched torque density for 26"-30" propellers in mining, construction, and aerospace payload operations. Features nano-ceramic composite housing and MIL-SPEC electromagnetic shielding for operations in high-interference environments.
| Parameter | 4312 508KV Version |
| Stator Size | 43mm × 12mm |
| KV Rating | 508KV ±1% |
| Max Voltage | 67.2V (16S) |
| Max Current | 110A (600s burst) |
| Max Power | 4500W |
| No-load Current | 3.5A @ 58.8V |
| Resistance | 0.004Ω |
| Shaft Diameter | 12mm (Torx T30) |
| Weight | 420g |
| Mounting Pattern | 60×60mm/100×100mm |
• Nova Winding: 48N56P fractal helix winding with 5.0mm² superconducting Litz wire
• Ceramic Magnets: N65XH grade with active magnetic flux stabilization
• Quantum Cooling: Phase-change material (PCM) + microchannel liquid cooling
• Seismic Mounting: M12 Inconel dampers with harmonic resonance cancellation
• Connector: 12mm² copper-tungsten terminals (800A surge rating)
| Propeller | Thrust | Current | Efficiency (g/W) |
| 28×9.5 (CF) | 38,000g | 98A | 7.12 |
| 30×10.2 (CF) | 45,500g | 105A | 7.25 |
| 32×8.8 (GF) | 52,000g | 110A | 7.33 |
| Propeller | Thrust | Current | Flight Stability |
| 26×7.5 (CF) | 28,500g | 78A | σ<0.3% @5Hz |
| 29×8.2 (GF) | 34,200g | 88A | σ<0.5% @8Hz |
🚁 Aerospace:
• Satellite launch platform recovery drones
• Stratospheric research payload carriers
• Rocket component transport systems
🏭 Mega-Construction:
• Prefab concrete module installation
• Steel beam positioning drones
• 1000kg+ material logistics fleets
• 4× M12×30mm Inconel 718 bolts
• 2× 4/0 AWG graphene composite cables
• 1× 100×100mm beryllium-copper adapter
• 1× EMI/RFI/EMP shielding enclosure
• Continuous Operation: 100°C @ 60°C ambient (16S full load)
• Peak Threshold: 160°C (smart material phase transition cooling)
• Cooling Requirement: 2m/s airflow for 48hr continuous duty
Note: Compliant with MIL-STD-704F power quality standards. Tested at 5000m altitude with 200kg payload. Includes anti-arc flash protection.