Reaction wheel
ASPINA
ASPINA offers a range of reaction wheels designed for satellite attitude control, featuring competitive pricing, high production capacity, low disturbance, light weight, and high power efficiency.
Key figurescomparable across the catalogue
- Mass
- 0.071 kg
- Power
- 0.6 W
- Largest dimension
- 138 mm
- Design life
- 5 years
- TRL
- 8
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Item
- Developing specification
- Model
- ARW-3m
- TRL
- 8
- Flight heritage
- 1st units launched: Jan 2025
- Satellite mass
- CubeSat
- Momentum, max
- 3mNms
- Torque, max
- 1 mNm
- Nominal speed, max
- 6000RPM
- Mass
- 71 g
- Envelope
- 30 x 30 x 30 mm
- Power, steady state
- 0.6 W @ 6000RPM
- Power, max torque
- 2.5 W @ 6000RPM
- Supply voltage
- 9 V to 12 V
- Command/telemetry
- I2C
- Control mode
- Speed or torque
- Temp, operating
- -30 to 70°C
- Temp, survival
- -30 to 70°C
- Radiation, TID
- 30krad
- Vibration
- 14.1grms
- Mission life
- 2 years
- Model (2)
- ARW-0.35
- TRL (2)
- 8
- Flight heritage (2)
- 1st Launch: Middle of 2026
- Satellite mass (2)
- 100 kg class
- Momentum, max (2)
- 0.35 Nms
- Torque, max (2)
- 15 mNm
- Nominal speed, max (2)
- 6000RPM
- Mass (2)
- 1 kg
- Envelope (2)
- 100 x 100 x 58.5 mm
- Power, steady state (2)
- 3 W @ 6000RPM
- Power, max torque (2)
- 15.6 W @ 6000RPM
- Supply voltage (2)
- 18 V to 34 V
- Command/telemetry (2)
- RS485
- Control mode (2)
- Speed or torque
- Temp, operating (2)
- -20 to 50°C
- Temp, survival (2)
- -30 to 60°C
- Radiation, TID (2)
- 30krad
- Vibration (2)
- 20grms
- Shock
- 2000 g
- Mission life (2)
- 5 years
- Model (3)
- ARW-1A
- TRL (3)
- 8
- Flight heritage (3)
- 1st Launch: Jun 2026
- Satellite mass (3)
- 200 kg class
- Momentum, max (3)
- 1 Nms
- Torque, max (3)
- 100 mNm
- Nominal speed, max (3)
- 7000RPM
- Mass (3)
- 1.75 kg
- Envelope (3)
- 138 x 138 x 50 mm
- Power, steady state (3)
- 10 W @ 7000RPM
- Power, max torque (3)
- 100 W @ 7000RPM
- Supply voltage (3)
- 24 V to 34 V
- Command/telemetry (3)
- RS485
- Control mode (3)
- Speed or torque
- Temp, operating (3)
- -20 to 50°C
- Temp, survival (3)
- -40 to 60°C
- Radiation, TID (3)
- 30krad
- Vibration (3)
- 20.8grms
- Shock (2)
- 1000 g
- Mission life (3)
- 5 years
- Model (4)
- ARW-2
- TRL (4)
- 8
- Flight heritage (4)
- 1st Launch: Jun 2026
- Satellite mass (4)
- 300 kg class
- Momentum, max (4)
- 2 Nms
- Torque, max (4)
- 100 mNm
- Nominal speed, max (4)
- 7000RPM
- Mass (4)
- 2.25 kg
- Envelope (4)
- 138 x 138 x 68 mm
About
ASPINA’s Reaction Wheels are designed for precise attitude control of satellites, ranging from CubeSats to 500kg class spacecraft. The product line includes models ARW-3m, ARW-0.35, ARW-1A, ARW-2, and the in-development ARW-12, each tailored for different satellite masses and performance requirements. These reaction wheels boast features such as low disturbance, light weight, and high power efficiency. They offer various momentum and torque capabilities, with maximum momentum ranging from 3mNms to 12Nms and maximum torque from 1mNm to 400mNm. The wheels operate at nominal speeds up to 7000 RPM and are designed to withstand the harsh space environment, with operating temperatures from -30 to 70°C, survival temperatures from -40 to 60°C, and radiation tolerance up to 30krad TID. Communication interfaces include I2C and RS485, and they support both speed and torque control modes. Flight heritage is planned, with initial units for ARW-3m, ARW-1A, and ARW-2 scheduled for launch in 2025 and 2026, and ARW-0.35 and ARW-12 also planned for launch in 2026. The TRL for most models is 8, with ARW-12 currently in development. ASPINA emphasizes short lead times, competitive pricing, and high production capacity, and offers customization options for specific customer needs.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.