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Advanced Nuclear Fuels GmbH: The Lingen factory



The Lingen factory produces fuel assemblies for pressurized and boiling water reactors. The following production steps are carried out in Lingen:

  • Powder production
  • Pellet production
  • Fuel rod production
  • Fuel assembly production.


Advanced Nuclear Fuels GmbH
Am Seitenkanal 1
49811 Lingen, Germany
Tel.: +49 591 9145 0

Contact for site visits

Elke Kohnen

Do you know how a fuel assembly is manufactured?

Upon delivery to the fuel assembly factory, the enriched uranium hexafluoride is converted chemically: into uranium dioxide. A powder that is pressed into small pellets.


These pellets are baked in a furnace at 1,700 degrees Celsius to obtain the required mechanical consistency and density. Each of these uranium pellets – a cylinder with a length of 10 to 13 millimeters and a diameter between 8 and 13.5 millimeters – merely weighs 10 grams, but has an energy content that is equivalent to 1,000 kilograms bituminous coal.


Subsequently, around 300 pellets are inserted into tubes, which are approximately 4 meters in length, the so-called cladding tubes. Each tube is sealed with a plug at both ends and welded. We now have a fuel rod.


A support structure combines the fuel rods to bundles, the fuel assemblies.


Between 150 and 265 fuel assemblies are used in pressurized water reactors. In boiling water reactors, the number of fuel assemblies varies between 400 and 800.

Fuel assemblies from Lingen – our contribution towards a power generation with less CO2

In Lingen, Advanced Nuclear Fuels GmbH has been manufacturing fuel assemblies for pressurized and boiling water reactors. For over 40 years! Safety and environmental protection are of top priority.

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