BLDC Propulsion Motors · 0.54–440 kW · performance to high-power
SRM Series imagery is representative. Ask our team for photographs of the exact model.
| Propeller | Pitch | RPM | Thrust | Power | Efficiency | Winding | |
|---|---|---|---|---|---|---|---|
| SRZ 22x6.6Most thrust | 6.6" | 5,279 | 5.48 kgf | 1,107 W | 4.95 gf/W | 44 °C | |
| SRZ 20x6 | 6" | 5,587 | 4.26 kgf | 897 W | 4.75 gf/W | 42 °C | |
| SRZ 18x6.1 | 6.1" | 6,421 | 3.79 kgf | 680 W | 5.58 gf/W | 40 °C | |
| SRZ 16x5.4Most efficient | 5.4" | 6,934 | 3.02 kgf | 539 W | 5.60 gf/W | 34 °C |
All figures at 100% throttle. Efficiency is powertrain efficiency, thrust per electrical watt.
Bench tested at 3,000 ft MSL, Bengaluru, India, ambient 28 °C.
S R Aerospace Product Catalog v1.0 (2026).
BLDC/PMSM propulsion motors spanning performance, heavy-duty and high-power applications. Propeller matching and voltage depend on the selected model.
SRM Series
Air-cooled BLDC electric motor designed with optimized windings for small multirotor platforms. Compatible with 16"–22" propellers.
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