ASPINA Reaction Wheels for Small Space Satellites
ASPINA
ASPINA offers a lineup of reaction wheels (RWs) designed for small satellite constellations in Low Earth Orbit (LEO), catering to CubeSats and satellites ranging from 100kg to 500kg class.
Typed specifications26 values
Discloses 6 of 10 fields engineers filter by in this category (category median 5).
- Mass
- 71 g as published, mode unspecified · vendor page (catalogue a
- Envelope (L×W×H)
- 30 x 30 x 30 mm product page 100 x 100 x 58.5 mm | 138 x 138 x 50 mm | 138 x 138 x 68 mm
- Angular momentum storage
- 2 N·m·s family value (4 models in card) · vendor page (catalogue a
- Max torque
- 100 mN·m family value (3 models in card) · vendor page (catalogue a
- Speed range
- 6 000 rpm product page 6 000 rpm | 7 000 rpm | 7 000 rpm
- Supply voltage
- 9–12 V as published, mode unspecified · vendor page (catalogue a
- Power consumption
- 0.6 W as published, mode unspecified · vendor page (catalogue a
- Radiation tolerance (TID)
- 30 krad as published, mode unspecified · vendor page (catalogue a
- Design lifetime
- 5 years as published, mode unspecified · vendor page (catalogue a
- TRL
- 8 product page 8 | 8 | 8
- Random vibration
- 14.1 g RMS product page 20 g RMS | 20.8 g RMS
- Flight heritage
- 1st units launched: Jan 2025 product page 1st Launch: Middle of 2026 | 1st Launch: Jun 2026 | 1st Launch: Jun 2026
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier69 lines, in the manufacturer's own wording
- 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 is developing a lineup of reaction wheels (RWs) for small satellite constellations in Low Earth Orbit (LEO). The lineup currently includes RWs for five different satellite sizes: 10 kg-class CubeSats, and 100 kg-class, 200 kg-class, 300 kg-class, and 500 kg-class satellites. These RWs are designed with competitive cost and shorter lead times, leveraging ASPINA’s decades of supply chain expertise and experience with automotive- and consumer-grade parts while ensuring quality for new satellite applications. The RWs, with a flywheel diameter of about 10 to 25cm, compensate for disturbance torques and possess the environmental durability required for satellite components. ASPINA aims to ship RWs within 2 to 3 months after receiving a purchase order by using widely available consumer-grade electronic components. Parts are selected to withstand the vibration, shock, temperature, vacuum, and radiation conditions of space and launch operations, and are evaluated through in-house testing. The company also focuses on suppressing on-board disturbance from RW vibration by precisely balancing the flywheel, designing new measurement jigs, employing specially designed high-precision bearings, and optimizing control methods for stable rotation. The RW for 100kg-class satellites is a cylindrical wheel, and structural analyses are performed to ensure sufficient strength against launch vibrations and shock. ASPINA is jointly developing the RW for 100kg-class satellites with AXELSPACE Corporation and a smaller RW for CubeSats with Ark Edge Space Inc.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.