Insulated & equipped cryogenic tanks

High-performance cryogenic storage solutions for space propulsion. We design and manufacture aluminum tanks for LH2, LOX, and LCH4, fully equipped with insulation and fluid management systems for all launch phases.

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Powering the Next Generation of space launchers

Launchers require lightweight, robust storage solutions to manage the extreme thermal conditions of cryogenic propulsion. Air Liquide provides end-to-end expertise in the design and manufacturing of insulated tanks for liquid hydrogen (LH2), liquid oxygen (LOX), and liquid methane (LCH4). From the Ariane program to future reusable vehicles, our tanks ensure fuel stability and structural integrity from lift-off to orbit.

Fully equipped for flight conditions

Our tanks are complex fluid management systems designed for flight. Built from high-grade aluminum and assembled using precision TIG welding, each tank is fully equipped to handle dynamic launch environments.

Key integrated technologies include:

  • Internal & external insulation: To maintain cryogenic temperatures.
  • Fluid Management: Anti-vortex devices, baffles for stability, and anti-sloshing systems.
  • Monitoring: High-precision level gauges, pressure sensors, and thermal sensors.

Large-Scale Manufacturing Capacities

We have the industrial capacity to produce large-scale flight models. This allows us to support a wide range of launcher programs, adapting our proven TIG welding and assembly processes to specific mission requirements.

Comprehensive In-House Cryogenic Testing

Beyond design and manufacturing, we provide complete in-house cryogenic testing capabilities for all space hardware. We rigorously validate our insulated tanks under representative flight conditions using actual propellants, including liquid hydrogen (LH2), liquid oxygen (LOX), and liquid methane (LCH4). This dedicated testing ensures uncompromising safety, structural integrity, and fluid management performance prior to launcher integration.

  • Decades of Space Heritage

    For over 60 years, Air Liquide has been a fundamental contributor to the space industry. Our insulated cryogenic tanks are the product of this deep legacy, which spans from the first Ariane missions to the exploration of Mars.

    By mastering every stage of space cryogenics—from heavy launcher propulsion to orbital life support and planetary exploration—we ensure that our storage solutions are built with proven reliability and the innovative DNA required for the next era of spaceflight.

  • Future-Ready: The Shift to Methane (LCH4)

    As the space industry evolves toward reusable launchers and cleaner fuels, Air Liquide is contributing to the development of LOX/LCH4 (liquid methane) cryogenic tanks. Specifically designed for the stages of the next generation of launchers, these tanks leverage our decades of expertise in hydrogen and oxygen storage to support the future of space propulsion.

  • A trusted partner: From Ariane 1 to Ariane 6

    Reliability is our legacy. We manufactured and delivered all LOx/LH2 tanks for the Ariane 5 program. Today, we serve as the Cryogenic Authority for Ariane 6 tanks, continuing to set the standard for cryogenic storage in Europe. With more than 800 cryotanks produced for flight models, our track record speaks for itself.

Our Launchers cryogenic equipment & technologies

  • Liquid Helium Sub System (SSHeL)
    High-performance liquid helium (LHe) storage for launcher pressurization. Aluminum double-wall vacuum insulated technology with 120+ flight models delivered.
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  • Propellant Management Devices (PMD)
    Advanced propellant management devices for space launchers (LH2, LOX, LCH4). Anti-vortex & anti-sloshing systems qualified for Ariane 1-6.
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  • Cryogenic Insulation Systems
    Advanced thermal protection for space launchers (LH2, LOX, LCH4). Sprayed foam & MLI solutions qualified for Ariane 6.
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  • Cryogenic Level Gauges
    High-precision capacitive level gauges for space launchers (LH2, LOX, LCH4). Flight-proven technology for Ariane.
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  • Cryogenic lines
    High-performance cryogenic lines for space launchers (LH2, LOX, LHe). Custom aluminum or stainless steel designs with 140+ references for Ariane 6.
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