Ai Glacier 21 CF -86°C Ultra-Low Chest ULT Freezer

Category Chest Lab Freezers
Manufacturer Across International
Country of manufacture China

The all new Ai Glacier 21 Cu Ft -86°C ultra low Temperature chest freezer is perfect for extra-large storage of sample and products. Our unique dual parallel compressor design offers you speedy cooling and great temperature uniformity inside the chamber.


  • CDC and VFC compliant, great for storage of DNA, RNA, virus samples, etc.
  • Remote alarm, R485, 4-20mA transmitter (optional)
  • ETL tested to UL and CSA standards
  • ETL tested to UL 471, Commercial Refrigerators and Freezers standards (optional)
  • All stainless steel interior for clean operation, durability, and ease of maintenance
  • External door with hydraulic support for super ease of operation
  • Powerful dual parallel compressor design for speedy cooling and great temperature uniformity
  • Central control with large 7" touch screen LCD display provides you a graph of temperature vs time curve.
  • Lock-able door, high or low temperature alarms, power failure alarm, door open alarm, filter clogging alarm, password protection, tons of security features to protect you, your products, and the unit
  • Dual silicon sealing gaskets for ultra airtight operation
  • 24-hour battery backup for controller
  • USB interface for data export and storage
  • Extremely quiet and reliable
  • Environmental friendly refrigerant
  • Use only RoSH compliant non-toxic components and materials
  • Tons of safety functions

Please note: This unit is NOT designed to be used on a mobile platform. The remote transmitting option requires an additional 2 week lead time.

Key Attributes
Min. Temperature -40°C to -86°C
Cubic Feet 21
Alarms Yes
Controls Digital
Defrost Manual
Electrical 220V (±10%) 60Hz 1-Phase, 2057 watts 10.5A
(NOT compatible with 220V50Hzpower)
Warranty(years) 1-year
Weight (lb) 900
Width (in) 80
Depth (in) 47
Height (in) 41
Manufacturer Specifications
Model G21c
Electrical requirements 220V (±10%) 60Hz 1-Phase, 2057 watts 10.5A
(NOT compatible with 220V50Hzpower)
Performance Temperature range: -40°C to -86°C
Time to reach -86°C: 6 hours
Compressor Make: SECOP
Model:SC18MLX (104L2138)
Power: 220V 60Hz 1-PHASE 1HP
Number of compressors: two, parallel
Refrigerant: Ai proprietary mixture gases, CFC-free
Chamber Dimensions: 47 x 32 x 24" (WxDxH)
Material: 304 stainless steel
Volume: 21 Cu Ft
Maximum load capacity: 550 Lbs on the base of chamber, evenly distributed
Cover and gasket External door: dual-level sealing gasket, lock-able, with hydraulic support
Interior covers: three pieces removable foam
Access port Two, one on the side and one in the back, one inch diameter
Built-in swivel casters Six
Noise level 48 dBA
Communication Remote alarm, RS232, 4-20mA transmitter (optional)
Working environment - Temperature: 10°C to 32°C (humidity <57% Rh required at 32°C)
- Humidity: <80% Rh
- Altitude: < 2000 m / 6561 Ft
- Stable, well-ventilated platform with no excessive dust
- Keep freezer at least 12 inches from any walls or ceiling
- Use dedicated power, do not share outlet
- Extension power cable should be less than 10 feet is required
- Freezer and power outlet should be grounded properly
- Avoid direct sunlight, water spill and do NOT use freezer outdoor
- Clean condenser fins and remove frost inside chamber at least once a month
- Important! Do not plug in your unit. Leave your Ai refrigerator or freezer for
24 hours before turning the unit on for the first time.
Battery backup system 24 hours (for controller display and alarms only)
Unit/shipping weight & dimensions 900 Lbs / 1100 Lbs
80 x 47 x 41" / 84 x 51 x 48"(WxDxH)
Safety Compressor over-temp protection
Compressor power surge delay protection
Short circuit and ground protection
Over-current protection
Over-temperature and low-temperature protection
Power failure protection
Low battery, door open, filter clogging, system failure alarms
External door with lock
Compliance UL STD 61010-1 (standard)
UL STD 471 (optional)
CSA C22.2 NO. 61010-1 (standard)
Warranty One year


Data storage Q & A

Q: How long can we store temperature data files continuously?
A: A total of 100,000 sets of data can be stored.

Q: What is the temperature data sampling rate?
A: Default sampling rate is 10 minutes (52,560 data sets per year), 100,000 data sets can be stored for less than two years.

Q: Will the freezer delete stored data itself?
A: Yes, after reaching 100,000 data sets, the oldest data set will be automatically deleted for each new data set recorded.

Q: Does freezer offer users option to automatically delete .dtl files that do not need to be stored?
A: No. It is recommended to copy the data on the freezer regularly to a computer for backup. In addition, data will be lost after replacing a display board, so do backup the data before replacing a display board.


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Ai Glacier 21 CF -86°C Ultra-Low Chest ULT Freezer Accessories