PHC Corporation

Isothermal LN2 Freezers



Custom BioGenic Systems' Isothermal Carousel Liquid Nitrogen Vapor Storage System combines the innovative -190 degree celsius Isothermal design with a small opening and an interior rotating carousel. The small opening provides low liquid nitrogen consumption, a lightweight, user-friendly lid and a consistently low temperature in the freezer. The interior carousel is rotated by a unique ratcheting handle on top of the freezer that will position samples to the front of the freezer, even with the lid on. Each ISOTHERMAL CAROUSEL system includes the advanced 2301 auto-fill / monitoring controller to provide security and ease of operation. Custom BioGenic Systems has two ISOTHERMAL CAROUSEL models available and an extensive selection of inventory racks to store any size tube, vial, box, microplate, etc. to complete the system. Custom configurations can also be designed to meet any requirement.


  • No need to remove one rack to retrieve another
  • No unnecessary exposure to room temperatures
  • Carousel is rotated from outside of the freezer eliminating the risk of injury or temperature fluctuations
  • Exceptional temperature uniformity
  • Easy access to samples from the front of the freezer
  • Removable console allows for complete access to the sample storage space if necessary
  • CBS Isothermal Carousel freezers are cooled by a PATENTED liquid nitrogen jacket, with no liquid in the sample storage space
  • The only TRUE DRY STORAGE FREEZER available
  • No risk of cross-contamination through liquid nitrogen contact of the need for special packaging
  • The isothermal design also provides added user-safety eliminating contact or splashing

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Product Photos


Liquid Nitrogen Capacity 93 litres
Static Evaporation Rate
Static Holding Time
External dimensions (WxDxH) 1194 x 1372x 1257 mm
Usable interior height 737 mm
Usable interior diameter 978 mm
Weight empty 425 kg
Weight full 499 kg
Max. vial capacity (2ml)
Max. blood bag capacity (50ml) 1722