HARDWARE / PRODUCTUpdated 24 Jul 2026

Reaction Wheel RW100

EXA (Astro-und Feinwerktechnik)
Reaction Wheel RW100

The RW100 is a reaction wheel for small satellites, optimized for constellation applications and based on the RW90 design.

Typed specifications19 values

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

Mass
800 g
as published, mode unspecified · vendor page (catalogue a 800 g max  |  800 g max · wheel mass
Envelope (L×W×H)
100mm*100mm*60mm
datasheet p.1 100mm*100mm*60mm dimensions
Angular momentum storage
0.4 N·m·s
@6000rpm · datasheet p.1 0.4 N·m·s 6000rpm
Max torque
20 mN·m
Nominal Torque · datasheet p.1
Speed range
6 000 rpm
Nominal Rotation Speed · datasheet p.1 7 000 rpm max · maximum rotation speed
Supply voltage
18–34 V
as published, mode unspecified · vendor page (catalogue a
Power consumption
2 W
as published, mode unspecified · vendor page (catalogue a
Operating temperature
-20–50 °C
operational temperature range · datasheet p.1
Design lifetime
7 years
datasheet p.1 7 years lifetime hardware, printed 7
Survival temperature
-40 °C
product page
Continuous (nominal) torque
20 mN·m
nominal torque, printed 0.02 Nm · datasheet p.1
Nominal operating speed
6 000 rpm
nominal rotation speed · datasheet p.1
Flywheel moment of inertia
0.001 kg·m²
moment of inertia · 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 supplier16 lines, in the manufacturer's own wording
Angular momentum
0.4 Nms @ nominal speed
Nominal rotation speed
6000 rpm
Nomial reaction torque
0.02 Nm Max. commandable deliverable output torque over the whole speed range
Supply voltage
18 to 34 V
Power consumption
≤ 2 W Stand by (motor off)
Power consumption (2)
≤ 5.0 W @ 6000 rpm
Power consumption (max)
20 W Maximum (max. torque/max. speed)
Mass
≤ 0.8 kg
Moment of inertia
6.52x10-4 kg m2 Rotating mass
Dimensions
100 mm x 100 mm x 60 mm
Operation
-20 °C to +60 °C
Start-up
-30 °C to +70 °C
Survival temperature
-40 °C to +75 °C
Data interface
RS485/RS422
Design lifetime
> 7 years In LEO
Storage time
> 3 years (incl. 240 h of ground operation)

About

The Reaction Wheel RW100 is a recent development from ASTROFEIN, building upon the design of the RW90. It is specifically optimized for production processes in constellation applications, combining existing wheel technology with an automotive approach for efficiency and reliability. This reaction wheel is designed to provide attitude control for small satellites, offering an angular momentum of 0.4 Nms at its nominal speed of 6000 rpm. It can deliver a maximum commandable output torque of 0.02 Nm across its entire speed range. The device operates on a supply voltage of 18 to 34 V, with power consumption ranging from ≤ 2 W in standby mode (motor off) to 20 W at maximum torque/speed. Mechanically, it has a mass of ≤ 0.8 kg and dimensions of 100mm x 100mm x 60mm. It features a moment of inertia of 6.52×10^-4 kg m^2 for its rotating mass. The RW100 is designed for operation in temperatures from -20 °C to +60 °C, with a start-up range of -30 °C to +70 °C and a survival temperature range of -40 °C to +75 °C. It uses an RS485/RS422 data interface and boasts a design lifetime of > 7 years in Low Earth Orbit (LEO), with a storage time of > 3 years (including 240 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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