An ultra-low temperature freezer (ULT freezer) is a type of refrigerator that stores contents at −40 to −86 °C (−40 to −123 °F). ULT freezers are commonly used in scientific research laboratories to store biological samples, such as blood, plasma, DNA, RNA, and proteins. They are also used in the pharmaceutical industry to store vaccines and other temperature-sensitive medications.

ULT freezers use a variety of technologies to achieve such low temperatures, including cascade compressors, vacuum insulation, and liquid nitrogen backup systems. These technologies are designed to minimize heat transfer and ensure that the freezer maintains a consistent temperature.

ULT freezers are typically upright or chest freezers. Upright ULT freezers are more common in laboratories, as they provide easier access to samples. Chest ULT freezers are more commonly used in the pharmaceutical industry, as they can store more samples in a smaller footprint.

ULT freezers are an essential tool for many scientific and pharmaceutical research laboratories. They allow researchers to safely store temperature-sensitive samples for long periods of time.

Here are some of the key features of an ULT freezer:

  • Temperature range: ULT freezers have a temperature range of −40 to −86 °C (−40 to −123 °F).
  • Capacity: ULT freezers come in a variety of sizes, with capacities ranging from 100 to 1000 liters.
  • Features: ULT freezers may have additional features, such as temperature monitoring, alarms, and data logging.

When choosing an ULT freezer, it is important to consider the following factors:

  • Capacity: How much sample storage space do you need?
  • Temperature range: What temperature range do you need?
  • Features: What features are important to you?
  • Price: How much are you willing to spend?

Once you have considered these factors, you can choose the ULT freezer that is right for your needs

Home » Freezer » Ultra Low Temperature Freezer

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Eppendorf CryoCube® F440h ULT Freezer Product Number F440340031

The efficient and reliable compressor systems of CryoCube F440 series ULT freezers ensure sample protection by guaranteeing fast recovery and pull-down back to -80 °C. 

F571300031 Eppendorf CryoCube® F570n ULT Freezers Cold Storage

The ULT freezer represents the volume class of 570 L (20.1 cubic feet) and a temperature range from -50 °C to -86 °C

F571340031 Eppendorf CryoCube® F570h ULT Freezers Cold Storage

The Eppendorf CryoCube F570 series of ULT freezers (also known as ultra-low temperature freezer/-80 °C freezer) is based on a strong compressor for fast recovery to -80 °C after opening. As this class of freezer is often used as real-lab freezer, multiple openings per day are normal – a dynamic and strong cooling system is mandatory for fast recovery to -80 °C after every opening.

F660320001 Eppendorf ULT Chest Freezers CryoCube® FC660h

Eppendorf Ultra-Low Temperature (ULT) chest freezers (-80°C) combine high storage capacity with energy saving. As the freezer is accessed from the top, the cold air is kept in the freezer. Based on this, the samples are even safer than in a conventional upright freezer.

F740320011 Eppendorf CryoCube® F740hi ULT Freezers Cold Storage

The Eppendorf CryoCube® F740 series is one of the latest additions to the Eppendorf ULT Freezer family (also known as ultra-low temperature freezer, -80°C)

U9430-0001 Eppendorf Innova® U535 ULT Freezers Cold Storage

Eppendorf Innova ULT freezers set the standard. These lab freezers like the Innova U535 take advantage of ultra-efficient, ultra-compact vacuum insulation panels which are used in combination with traditional insulation to slim down the freezer wall thickness from 130 mm to 80 mm.