Reaction Wheel RW800
EXA (Astro-und Feinwerktechnik)
The RW800 is a reaction wheel for satellites, currently under development with an engineering model available, designed for attitude control.
Key figurescomparable across the catalogue
- Mass
- 6 kg
- Power
- 2.5 W
- Largest dimension
- 250 mm
- Design life
- 15.5 years
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
- Angular momentum
- 12.0 Nms
- Remark
- @ nominal speed
- Nominal rotation speed
- 3600 rpm
- Nomial reaction torque
- 0.2 Nm
- Remark (max)
- Max. commandable reaction torque
- Supply voltage
- 23 to 34 V
- Power consumption
- ≤ 2.5 W
- Remark (3)
- Stand by (motor off)
- Power consumption (2)
- ≤ 25.0 W
- Remark (min)
- @ nominal speed
- Power consumption (3)
- ≤ 70 W
- Remark (max) (max)
- 0.1 Nm/max. speed
- Power consumption (4)
- ≤ 140 W
- Remark (max) (max)
- Maximum (0.2 Nm/max. speed)
- Mass
- ≤ 6.0 kg
- Moment of inertia
- 3.183e-2 kg m2
- Remark (7)
- Rotating mass
- Dimensions
- 250 x 250 x 100 mm3
- Operation
- -20 °C to +60 °C
- Start-up
- -25 °C to +60 °C
- Survival temperature
- -30 °C to +65 °C
- Data interface
- CAN/RS485
- Design lifetime
- > 15.5 years
- Storage time
- > 6 years
- Remark (8)
- including 1500h of ground operation
About
The RW800 is a reaction wheel specifically designed for satellite applications, providing precise attitude control. It is currently under development, with an engineering model already available for testing and evaluation. Key features include a nominal angular momentum of 12.0 Nms at a nominal speed of 3600 rpm, and a maximum commandable reaction torque of 0.2 Nm. The power interface supports a supply voltage range of 23 to 34 V, with power consumption varying from ≤ 2.5 W in standby (motor off) to ≤ 140 W at maximum operation (0.2 Nm/max. speed). Mechanically, the unit has a mass of ≤ 6.0 kg and dimensions of 250 x 250 x 100 mm³. It operates within a temperature range of -20 °C to +60 °C, with a start-up range of -25 °C to +60 °C and a survival temperature range of -30 °C to +65 °C. Data communication is handled via CAN/RS485 interfaces. The RW800 is designed for a lifetime of > 15.5 years and a storage time of > 6 years, including 1500 hours of ground operation.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.