LN2 Freezers

Liquid Nitrogen (LN2) Cryogenic Freezer Systems

What is a cryogenic freezer?

A cryogenic freezer, commonly using liquid nitrogen (LN2), is designed to maintain ultra-low temperatures, typically below -150°C, essential for preserving biological samples and sensitive materials for extended periods. LN2 freezers achieve these temperatures by cooling with nitrogen gas, which provides consistent low temperatures while minimizing temperature fluctuations within the chamber.

What is the difference between freezing and cryogenics?

Freezing generally refers to cooling items to temperatures below 0°C, typically up to around -80°C in ultra-low temperature freezers. Cryogenics, however, involves much lower temperatures, often below -150°C, achieved with substances like liquid nitrogen. This extreme cold is vital for applications requiring cellular or molecular stability, such as preserving live cells or tissues that are highly temperature-sensitive.

How cold are liquid nitrogen cryogenic freezers?

Liquid nitrogen cryogenic freezers can reach temperatures as low as -196°C, depending on the model and design. This temperature is achieved by direct cooling from nitrogen gas, ensuring a stable, cold environment necessary for preserving biological and pharmaceutical samples without risk of thawing.

How do you select the right cryogenic freezer?

Selecting the right cryogenic freezer depends on storage needs, sample type, and required capacity. Considerations include internal configuration (such as racks or storage boxes), temperature stability, backup power options, and safety features. Laboratory Equipment Company offers expert guidance to help labs choose the right freezer for their specific requirements, considering aspects like durability, energy efficiency, and ease of access.

What are the best cryogenic freezer suppliers?  

Laboratory Equipment Company is recognized as a world-class distributor of cryogenic freezers, providing high-quality products from leading manufacturers. Known for reliability and support, offers a range of cryogenic storage solutions tailored to meet the stringent demands of various research and medical fields.

For more details, please refer to Laboratory Equipment Company's website.