Delivery at CERN and installation of the LHC underground refrigerator 1.8K in UX85 (point 8).

Series of photographs showing the delivery, handling and installation of the LHC cryogenic refrigerator in point 8 (UX85). The LHC cryogenic fluid (liquid helium at 1.9 K) is produced by cryogenic refrigerators (QURC) that are situated in the shafts and in the underground tunnel areas: 8 new units are being installed to reinforce the existing LEP cryogenic units. Each of them has an overall weight of about 25 t, the shape of a huge reversed L, 2-m wide, 7-m long and around 7-m high. Each QURC is installed in a different cavern/pit and is surrounded by a multitude of other services; consequentially it demands a detailed handling study, the procurement/design of dedicated handling tools and several days for installation of any single part.