HARDWARE / PRODUCTUpdated 24 Jul 2026

Reaction Wheel RW1500

EXA (Astro-und Feinwerktechnik)
Reaction Wheel RW1500

The RW1500 is a reaction wheel currently under development, designed for satellite attitude control with an angular momentum of 25.0 Nms and a nominal rotation speed of 4000 rpm.

Typed specifications19 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)
320mm*320mm*120mm
datasheet p.3
Angular momentum storage
25 N·m·s
@4000rpm · datasheet p.3 25 N·m·s 4000rpm
Max torque
200 mN·m
nom. · datasheet p.3 200 mN·m as published, mode unspecified
Speed range
4 000 rpm
nom. · datasheet p.3
Supply voltage
22–37 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.3 60 °C max  |  -20–60 °C
Design lifetime
15 years
datasheet p.3 15.5 years as published, mode unspecified
Survival temperature
-40 °C
product page
Continuous (nominal) torque
200 mN·m
printed 0.2 Nm · datasheet p.1
Nominal operating speed
4 000 rpm
datasheet p.1
Flywheel moment of inertia
0.597 kg·m²
datasheet p.0

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 supplier16 lines, in the manufacturer's own wording
Angular momentum
25.0 Nms @ nominal speed
Nominal rotation speed
4000 rpm
Nomial reaction torque
0.2 Nm Max. commandable reaction torque
Supply voltage
22 to 37 V
Power consumption
≤ 2.5 W Stand by (motor off)
Power consumption (max)
≤ 30.0 W @ nominal speed 0.1 Nm/max speed
Power consumption (max) (max)
≤ 140 W Maximum (0.2 Nm/max. speed)
Mass
≤ 6.0 kg
Moment of inertia
5.97e-2 kg m2 Rotating mass
Dimensions
320 x 320 x 120 mm3
Operation
-20 °C to +60 °C
Start-up
-30 °C to +60 °C
Survival temperature
-40 °C to +65 °C
Data interface
CAN/RS485
Design lifetime
> 15.5 years
Storage time
> 6 years including 1500h of ground operation

About

The RW1500 is a reaction wheel specifically developed for satellite applications, providing precise attitude control. It is currently under development. Key specifications include an angular momentum of 25.0 Nms at nominal speed and a nominal rotation speed of 4000 rpm. The maximum commandable reaction torque is 0.2 Nm. The power interface operates with a supply voltage ranging from 22 to 37 V. Power consumption varies depending on the operational state: ≤ 2.5 W in standby (motor off), ≤ 30.0 W at nominal speed (0.1 Nm/max speed), and a maximum of ≤ 140 W (0.2 Nm/max. speed). Mechanically, the unit has a mass of ≤ 6.0 kg and a moment of inertia of 5.97e-2 kg m2 for its rotating mass. Its dimensions are 320 x 320 x 120 mm3. The RW1500 is designed to operate within a temperature range of -20 °C to +60 °C, with a start-up capability from -30 °C to +60 °C, and a survival temperature range of -40 °C to +65 °C. Data communication is handled via CAN/RS485 interfaces. The design lifetime is specified as > 15.5 years, with a storage time of > 6 years, which includes 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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