Turbopumps
The Heart of Our Engine
Want to see it in action?
What Makes It Unique?
Fully designed and produced in-house by Sirius
Manufactured using additive manufacturing, then machined at our factory by Sirius
We use an expander cycle, which simplifies the engine, reduces the number of components, and lowers costs thanks to additive manufacturing
We are one of the few actors on the market to offer this type of propulsion cycle
Key Figures of Our Turbopump
Our latest tests ramped up to 45,000 rpm
Demonstrating its ability to deliver high-pressure liquid methane (LNG) under real flight-like conditions—using the same bearings and sealing system as our actual engine
Our turbopump is more than just a component — it embodies precision engineering and relentless innovation at the core of our propulsion.
ABOUT
What’s a turbopomp?
The turbopump is the heart of the engine, it drives the flow of cryogenic fluids throughout the launcher, delivering them to the combustion chamber at precisely regulated pressures. It must withstand extreme thermal and mechanical stresses, especially at cryogenic temperatures: around 90 Kelvin (-183°C) for liquid oxygen and 110 Kelvin (-163°C) for liquid methane.
Its design ensures reliable performance under these harsh conditions, making it a critical component of the propulsion system.
First Milestones Achieved, Ambitions Rising
All key components are thoroughly tested to deliver consistent performance and dependable reliability.