All Categories
Big Motors > AirDrive (Drones/Fixed-wing)
The X3515 330KV brushless motor delivers high-torque efficiency for small UAVs and FPV quadcopters requiring payload capacity and endurance. Engineered with an external rotor design and precision-balanced components, it provides exceptional power density and thermal stability. The motor's optimized electromagnetic circuit ensures smooth throttle response across wide speed ranges, making it ideal for both aerial photography and competitive racing applications requiring reliable performance.
| Parameter | Specification |
| Motor Type | 3-Phase External Rotor BLDC |
| Protection Rating | IP55 (Dust & Water Protected) |
| Rated Voltage | 6-8S LiPo (22.2V) |
| Continuous Power | 600W @ 22.2V |
| Max Torque | 2.5Nm (Peak) / 1.8Nm (Continuous) |
| Speed Range | 1,800–38,000 RPM (ESC Adjustable) |
| KV Rating | 330-500 RPM/V |
| Phase Resistance | 0.045Ω (Phase-to-Phase) |
| Shaft Diameter | 5.0mm (Hardened Steel, M5 Threaded) |
| Weight | 158g |
| Mounting | 25×25mm / M4 Threads (4-point) |
| Dimensions | Ø42mm × 15mm (Stator Height) |
• External Rotor Design: Enhanced torque density for large propellers (15"-18")
• Precision Balancing: <0.015g·mm dynamic imbalance for vibration-free operation
• High-Temp Windings: 200°C rated enamel with thermal protection
• Dual-Bearing System: Ceramic hybrid bearings rated for 50,000 RPM
• Thermal Management: Integrated aluminum heat sink fins
| Application | Voltage | Propeller | Thrust | Flight Time |
| Heavy-Lift Quad | 29.6V (8S) | 16×5.4" carbon | 3200g | 18 min (w/1kg payload) |
| Cinematic Octocopter | 22.2V (6S) | 15×5" folding | 2850g | 22 min (w/800g payload) |
| Long-Range Wing | 29.6V (8S) | 12×8" | 1850g | 45 min |
| Mapping Drone | 25.9V (7S) | 14×4.5" | 2450g | 28 min (w/500g payload) |
• Heavy-lift photography drones (Sony A7-class payloads)
• Industrial inspection UAVs with LiDAR sensors
• Agricultural spraying platforms
• Long-endurance mapping drones (>60min flight time)
• VTOL conversion systems
• Cargo delivery aircraft
• X-class racing drones
• Drone endurance challenges
• Heavy-lift competition UAVs
• Continuous Operation: ≤70°C @ 25°C ambient
• Thermal Management: Maintains <85°C at 90% load with airflow
• Cooling Requirements: 4m/s airflow (prop wash sufficient)
• Storage Conditions: -30°C to +80°C, <85% RH
