ULT Chest Freezers

ULT Chest Freezers
ULT Chest Freezers

Eppendorf Ultra-Low Temperature (ULT) Chest Freezers combine high storage capacity with energy saving. The CryoCube FC660 needs 25 % less energy than its predecessor. This new line has a high-efficiency fan, compressor, and condenser which decrease the power consumption. More information


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Product Information

Eppendorf ULT Freezers such as the CryoCube FC660 are known for their energy efficiency, reliability, and worry-free, long-term sample preservation. They provide many of the same features as the Eppendorf Innova ULT Freezers, but are conventionally insulated by polyurethane foam for a cost-effective alternative. The polyurethane insulation combined with a highly efficient cooling system achieve and maintain ultra-low temperatures of –86 °C.

The ratio of the number of storage boxes to energy consumption is higher for chest freezers than upright models. When the chest freezer is opened, the cold air is kept inside. Additional insulated panels cover the inner chamber and increase energy saving. You can store up to 52,000 vessels in a CryoCube FC660. Each CryoCube model is delivered with its own specific certificate.
The temperature range is from -50°C to -86°C.


  • Premium seals for optimal temperature uniformity
  • 2-stage cascade cooling system for reliable cooling processes
  • New ergonomic handle requires less force and provides easier access
  • Insulated inner lids help to maintain temperature stable when opening freezer
  • New high-efficiency fan, compressor, and condenser for lower energy consumption
  • Access port for TCA-3 alarm system for supervised sample storage
  • Full stainless steel interior for easy cleaning during maintenance and defrost cycles; powder-coated steel exterior
  • Compatible with CO2/LN2 injection system as backup for highest sample safety


  • ULT freezers are suitable for storage and preservation of all types of biological materials/samples:
  • › Bacteria
  • › Cells
  • › Spores
  • › Pollens
  • › Protozoa
  • › Blood components
  • › DNA
  • › Tissue used in research only
  • › Preservation of chemicals or material testing components for a longer period of time
 CryoCube® FC660
Cooling liquidR404A / R508B
Heat output454 W
InsulationPolyurethane foam
Capacity660 L
Capacity (ft3)23.3 ft³
No. of compartmentsN/A
Max. racks per freezer40
Noise level58.5 dB
Power supply208 – 230 V, 60 Hz
Max. power consumption10,600 W
Dimensions (W × D × H)207 × 84 × 107.5 cm / 81.5 × 33.1 × 42.3 in1,3,4
Footprint (dimensions w/o front panel, WxD)207 x 84 cm
Weight w/o accessories280 kg
Temperature rangeAmbient to -85 °C pull down is 4.4 hours
Pull-down time to -85 °C4.8 h2
Box capacity per freezer 
5 cm (2 in) tall boxes520
6.5 cm (2.5 in) tall boxes440
7.5 cm (3 in) tall boxes360
10 cm (4 in) tall boxes280
12.5 cm (5 in) tall boxes200
DWP per freezer 
10 cm (4 in) tall boxes780
Box capacity per rack 
5 cm (2 in) tall boxes13
6.5 cm (2.5 in) tall boxes11
7.5 cm (3 in) tall boxes9
10 cm (4 in) tall boxes7
12.5 cm (5 in) tall boxes5
1Door open adds up to 15 cm.
2Empty freezer with shelves fitted, upright freezers only, pull down from 21 – 23 °C ambient conditions.
3Optional CO2/LN2 backup systems add 8.65 cm/3.5 in to height.
4To allow for handles and hinges, add 80 mm to width of upright freezers and 110 mm to the depth of chest freezers.

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