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CMSH Series

Portable Liquid Helium Dewars

liquid helium dewars

Designed for minimum-loss storage, transportation and dispensing of liquid helium. Our state-of-the-art vapor-cooled multishield technology with superinsulation ensures the lowest guaranteed loss rates*. The advanced insulation system results in quicker, more efficient cool down without nitrogen pre-cooling. Since there’s no LN2 or helium gas circulation shielding, the CMSH is virtually maintenance free. Its a lighter, more compact and convenient replacement to traditional 4-walled helium containers.


Features of Liquid Helium Dewars

  • No liquid nitrogen shielding or helium gas circulation required
  • Lightweight but rugged construction stands up to trucking and everyday abuse
  • Suitable for air transport
  • All welded construction
  • Lowest loss rates in the industry
  • All units equipped with integral caster base
  • Easily removable and interchangeable manifolds
  • Applications include Distribution, Research and Liquefaction
  • Two-year warranty on vacuum

Select a capacity (liters) to see PDF specifications:


Commercial air transport vessels:


Sizes up to 5000 liters available.

See below for some of the available options.
Custom Work Is Our Specialty

Common Questions Asked When We Receive a Custom CMSH Liquid Helium Dewar Request

See you at the 2021 Helium Summit

See You At The Helium Super Summit

December 7–9
Houston, Texas, USA

Come ask us about the best liquid helium dewars, transfer lines, and accessories for your application. Booth 14

Customize It

If you need it we can make it. Contact us to add any of these options to a standard CMSH liquid helium dewar or to work with our experts to design the perfect container for your needs. Large and small run manufacturing also available.

Call 1.800.426.2186 or fill out our online request form to start designing perfect tank for your application.


Available Optional Accessories For CMSH Liquid Helium Dewars

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