Skip to main content


 image  image
Urenco Stable Isotopes is based in Almelo, the Netherlands. We have the facilities, personnel and resources to supply a wide range of isotopes to numerous clients in various markets.

An isotope is an element that has the same number of protons (the same atomic number) but a different number of neutrons in the nucleus (different atomic mass). Isotopes can either be stable or unstable. Due to their unique properties, stable isotopes are used in a variety of applications, including medical diagnosis, semiconductor production for electronic devices and research on materials used in nuclear environments.

Urenco SI centrifuge technology

Using the most advanced centrifuge technology available in the world today, we can enrich materials to exceed 99% or deplete below 1%.

Our gas centrifuge consists of a fast spinning rotor inside a vacuum casing. Gas is fed into the rotor, where it is accelerated to the rotational frequency. Gas molecules are then subjected to centrifugal forces induced by the centripetal acceleration. Heavy molecules are subjected to larger forces than light molecules and there will thus be a higher concentration

of heavy molecules towards the rotor wall, whereas the lighter molecules are more concentrated towards the centre of the rotor. The gas is extracted from the centrifuge by a set of gas

extraction scoops; the heavy fraction scoop is located near the rotor wall, whereas the light fraction scoop is placed closer to the centre of the rotor.

Urenco SI centrifuge technology image Urenco SI centrifuge technology image

More than 50 years' experience

The advanced centrifuge technology that we use and own, is the result of over thirty years' continuous development. The production of stable isotopes started as a diversification project at our plant in Almelo, the Netherlands, in the early 1990s.

Because we are diversified from the Urenco R&D department, a lot of enrichment knowledge has always been embedded in our DNA. From the early stages of our existence, the knowledge on converting gaseous materials and product processing has been continuously developed and a vast experience on handling various materials has been developed through execution of various projects.   

From the mid-1990s, we have been operating as a profitable autonomous business unit and we have been continuously diversifying our product portfolio.

Our future developments image Our future developments image

Our future developments

We are continuously developing and expanding our enrichment capacity and are constantly looking out for new development opportunities. Our R&D department uses premium quality equipment and our staff are highly educated and trained. One of our key goals is development in close cooperation with our customers and we try to be involved in R&D projects from a very early stage to let our customers benefit from our knowledge to the fullest extent. This results in the highest quality and most cost-effective products and solutions.

Meet our managers

{content:name} image

Arjan Bos

Business Unit Manager, Urenco Stable Isotopes

{content:name} image

Martijn van Hezel

Commercial Manager, Urenco Stable Isotopes

{content:name} image

Peter Groen

Development Manager, Urenco Stable Isotopes

{content:name} image

Edwin Mulder

Production Manager, Urenco Stable Isotopes


Sign up to our newsletter by entering your email address below.

Back to
the goals