RW4 Reaction Wheel
Mid-size SmallSat reaction wheel, 4 Nms momentum, 250 mNm torque, 3.2 kg, 175×175×72 mm. 105+ units launched.
Technical specifications
- Momentum
- 4.0 Nms
- Peak Torque
- 250 mNm
- Mass
- 3.2 kg
- Dimensions
- 175 × 175 × 72 mm
- Supply Voltage
- 22–34 V DC
- Operating Power
- ~10 W nominal, 176 W peak
- Interface
- RS-422, 200 Hz
- Operating Temperature
- -20 to +60 °C
- Flight Heritage
- 105+ units launched
About
The RW4 is Blue Canyon Technologies’ mid-size SmallSat reaction wheel with over 105 units launched as of 2025. Delivers 4.0 Nms angular momentum with 250 mNm peak torque. 3.2 kg in a 175 × 175 × 72 mm package. RS-422 interface at 200 Hz control rate, 22–34V DC supply, ~10 W operating power.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.