• Attitude control for medium-size satellites (200–1,000 kg)
• Agile Earth observation and SAR platforms
• LEO constellations for telecom and broadband
• Science and institutional missions with long design lives

The RW6-12k opens Comat's Heavy Series, built for satellites from 200 to 1,000 kg. The RW6k and RW12k store 6 or 12 Nms and deliver 0.2 Nm of torque, giving medium-size platforms the agility for fast repointing and the momentum capacity to absorb environmental disturbances.

Plug-and-play on a standard bus. The drive electronics are embedded in the wheel, so no separate drive unit is needed. The wheel runs from a standard 28 V bus (22 - 32 V), communicates over redundant CAN and connects through a Micro-D D-Click connector. Power is 25 W at steady state and 200 W at maximum torque.

Precise and well characterised. Speed control accuracy is better than 1 rpm. Every wheel can be delivered with its own waterfall plot, mapping micro-vibrations against speed and frequency, so AOCS and payload teams model disturbances from measured data.

Built for availability. The electronics withstand a total ionising dose below 30 krad. Single-event effects are characterised and mitigated in software, supporting high availability in orbit.

Tested to outlast the mission. The wheels are qualified to 25 g quasi-static load, 18 gRMS random vibration and 1,400 g shock. A 10-year lifetime is assessed through 200,000 zero-crossing tests under mission-representative conditions, with 200 FIT reliability. The operating range spans -20 °C to +60 °C.

Designed for LEO compliance. The design is demisable, in line with re-entry requirements for LEO missions and constellations.

Industrial quality. Manufactured in Toulouse, France, under EN9100. Each unit ships with a full EIDP and component traceability, with more than 30 parameters controlled during manufacturing.

The RW6-12k can be configured to the mission. Customers choose 6 or 12 Nms within the same product family. Further options include wheel clusters in pyramid or custom configurations, adapted mounting interfaces and brackets, harness and connector adaptations, and support for integration with the customer's AOCS and CAN network. Waterfall micro-vibration plots can be supplied with each unit at delivery. Contact [email protected] to discuss your requirements.