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4 K pulse tubes, Cryomech & Sumitomo
Syracuse · Tokyo, United States / Japan43.05°N 76.15°W
computed criticality18/100
reading
World duopoly on 4 K pulse-tube cold heads
2024Fault line
The pre-cooling of any dilution refrigerator rests on 4 K pulse-tube cryocoolers, whose serious production is shared between Cryomech (acquired by Bluefors in 2019) and Sumitomo Heavy Industries. Vertical integration tightens the chain further: the leading cryostat maker owns one of the two suppliers of its most critical part.
Actors
Cryomech / Bluefors (Syracuse)
Sumitomo Heavy Industries (Tokyo)
Feeds 1
Dilution refrigerators, Bluefors, HelsinkiQuantum & Cryogenics↗Sources