HARDWARE / PRODUCTUpdated 24 Jul 2026

Reaction Wheel RW800

EXA (Astro-und Feinwerktechnik)
Reaction Wheel RW800

The RW800 is a reaction wheel for satellites, currently under development with an engineering model available, designed for attitude control.

Typed specifications18 values

Discloses 5 of 10 fields engineers filter by in this category (category median 5).

Mass
6 000 g
as published, mode unspecified · vendor page (catalogue a 6 000 g max
Envelope (L×W×H)
250mm*250mm*100mm
datasheet p.2
Angular momentum storage
12 N·m·s
at 3600rpm · datasheet p.2
Max torque
200 mN·m
nom. · datasheet p.2 200 mN·m as published, mode unspecified
Speed range
3 600 rpm
nom. · datasheet p.2
Supply voltage
23–34 V
as published, mode unspecified · vendor page (catalogue a
Power consumption
2.5 W
as published, mode unspecified · vendor page (catalogue a
Operating temperature
-20 °C
min · datasheet p.2 60 °C max  |  -20–60 °C
Design lifetime
15 years
datasheet p.2 15.5 years as published, mode unspecified
Survival temperature
-30 °C
product page
Continuous (nominal) torque
200 mN·m
printed 0.2 Nm · datasheet p.1
Nominal operating speed
3 600 rpm
datasheet p.1
Flywheel moment of inertia
0.032 kg·m²
datasheet p.1

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 supplier25 lines, in the manufacturer's own wording
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.

Source: www.astrofein.com ↗

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