Caelus Motor ST4006 motor is a large diameter, thin stack thickness design of a brushless external rotor motor. This design philosophy makes it particularly focused on providing extremely high torque and efficiency at relatively low speeds. It is mainly targeted at industrial and professional multi-rotor drones that pursue ultra-long flight time, ultra-large load capacity and ultimate efficiency.
The 4006 multi-rotor motor is one of the benchmarks for “high payload and long endurance” power solutions in the industrial drone field. The core reasons for choosing the 4006 motor are its low-speed torque efficiency and excellent thermal management capabilities.
Flight endurance is a key performance indicator of the project. Your task requires stable and reliable high-intensity continuous operation, rather than fancy maneuvers.
It represents a pragmatic and efficient engineering philosophy: for specific tasks, using the most appropriate physical principles to achieve the ultimate optimization. For industrial-grade drones that need to conquer vast skies and carry out important missions, the 4006 motor is a powerful heart that can stand the test of time.
| Specification | |
| Weight: | 57.3g (including the cables) |
| Motor size: | ф39.1 x 19.2mm |
| AWG: | 18#AWG 190mm |
| Interphase internal resistance: | 0.067Ω |
| Configuration: | 24N/28P |
| Shaft Diameter: | 4.0mm |
| ST4006 1200KV Motor | |
| Max. Thrust: 1204g(3S/1055) | |
| Non-load current: 1.15A/10V | |
| Maximum current (60S): 23A | |
| Max. Power: 280W | |
| Motor Mount: 4-M3*6 | |
| Rated operating voltage(Lipo): 2-3S | |

| ltem No. | Prop | Throttle | Volts | Amps | Watts | Thrust | Efficiency | Operating |
| (inch) | (%) | (V) | (A) | (W) | (g) | (g/W) | temperature(℃) | |
| ST4006 1200KV | 1055 | 50% | 12.45 | 2.64 | 32.9 | 467 | 14.21 | 38.9℃ |
| 60% | 12.45 | 5.83 | 72.6 | 658 | 9.07 | |||
| 70% | 12.34 | 9.86 | 121.7 | 857 | 7.04 | |||
| 80% | 12.23 | 14.51 | 177.5 | 1054 | 5.94 | |||
| 90% | 12.16 | 18.45 | 224.4 | 1193 | 5.32 | |||
| 100% | 12.11 | 18.89 | 228.8 | 1204 | 5.26 | |||
| Notes: The test condition oftemperature is motor surface temperature in 100% throttle while the motor run 60 s.environment temperature 26℃ | ||||||||








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