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Novel cooling system for the cryogen-free, continuous, and fully-automatic generation of very low temperatures near absolute zero.

Project description

High-efficiency magnetic cooling is compact, cryogen-free and low-cost

Cryogenic systems can maintain very low temperatures (close to absolute zero) to preserve liquefied gases and other substances. Despite their use in a growing number of industries, the shortage of liquid helium, the high costs involved in cooling machines and various safety problems make the use of cryogenic liquids challenging. The EU-funded CADR project is supporting Germany-based company Kiutra in developing a cryogen-free, continuous and fully automatic refrigeration system based on a cryogenic magnetic cooling process known as continuous adiabatic demagnetisation refrigeration (CADR). CADR uses widely available and low-price cooling media. Moreover, it is modular, customisable and scalable. The solution could find application in materials science, quantum computing, high-performance electronics and detectors.


Low temperatures close to absolute zero (0 degrees Kelvin) are required for materials science, detectors for the aerospace and military sector, quantum computing, and quantum electronics. These temperatures are commonly achieved by using cryogenic liquefied gases (cryogens), such as liquid helium (He). However, there are a numbers of problems related to the use of these cryogens which include the oligopoly of He-3, high costs of cooling machines (€ 300-600k), and safety problems.
To solve these pains, kiutra has developed a cryogen-free, continuous, and fully automatic refrigeration system based on a cryogenic magnetic cooling process known as Continuous Adiabatic Demagnetization Refrigeration (CADR). CADR uses widely available and low-price cooling media, saving € 20-40k/year in comparison with typical refrigeration systems that use He-3. Moreover, the system has a complete modular and customizable design, as it can be extended with multiple units according to the cooling requirements. It also offers a wide and stable temperature range while being easy to operate and hazard-free, thanks to the elimination of cryogens.
kiutra, founded in 2018 in Germany, builds easy-access turn-key refrigeration solutions. Their cooling devices combine magnetic refrigeration and closed-cycle pre-cooling to provide cryogenic temperatures without cryogens. kiutra is currently funded by “EXIST Transfer of Research”, and has raised almost € 2M to date. The proposed work in Phase 1 of the SME instrument fits into their overall plan to reach market by contributing to the financial resources needed to further improve and test CADR system, and ensure market uptake.

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Net EU contribution
€ 50 000,00

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The organization defined itself as SME (small and medium-sized enterprise) at the time the Grant Agreement was signed.

Bayern Oberbayern München, Kreisfreie Stadt
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Total cost
€ 71 429,00