The Eppendorf CryoCube® F440 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 freezer access: provide your valuable samples a safe and cold location. The freezer minimises operating costs by low energy consumption per day while providing superior protection for your critical samples. A combined insulation based on vacuum insulation panels and polyurethane foam enables extremely low energy consumption during long-term storage for the CryoCube® F440h.

• 5 compartment layout with 4 shelves and 5 insulated inner doors for easy sample access and safe sample storage at -80°C
• Walls are 130mm thick with polyurethane insulation ("n" version) or polyurethane insulation and vacuum insulation panels ("h" version)
• Volume of 440L
• Temperature range from -50 to -86°C
• Reliable heavy-duty compressors (2-stage cascade cooling system)
• Quick pull-down times enable fast re-use after cleaning/defrosting of the instrument
• Short recovery times after opening to provide extra sample safety (Door-Open-Recovery/ DOR) when getting back to -80°C
• Automatic vent port enables fast re-access if needed
• Hydrocarbon-based cooling liquids (R290/ R170)
• Air-cooling
• For even higher sample safety, the ULT freezers are available with CO₂/LN₂ back-up systems and a chart recorder
• Temperature monitor systems can be used to monitor the freezers remotely