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Stirling Ultracold ULT25NEU Portable -86°C Ultra-Low Temperature Freezer
Product Description
The Stirling Ultracold ULT25NEU is a compact, portable -86°C ultra-low temperature freezer specifically designed for reliable biological sample storage and transport in biotechnology, molecular diagnostics, and clinical research applications. Featuring a 25-liter (0.9 cu.ft.) storage volume, the unit accommodates up to 18 standard 2-inch boxes, ensuring optimal organization of cryogenic samples.
Key technical features include:
- Temperature range from -86°C to -20°C, adjustable in 1°C increments, with three preset temperatures (-86°C, -40°C, -20°C) for versatile bioprocessing and gene editing sample requirements.
- Uniform temperature stability with ±3°C variance top to bottom at -80°C to maintain sample integrity during transport.
- Innovative Stirling engine refrigeration technology using natural refrigerant R-170 (Ethane) at 10-12 grams, eliminating compressors and reducing energy consumption to less than 2.8 kWh/day, supporting sustainable biomanufacturing workflows.
- Low noise operation at under 45 dB(A), suitable for controlled laboratory environments in synthetic biology and molecular biology labs.
- Lightweight design weighing 46 lbs (21 kg), with compact dimensions (14” x 29” x 19”), enabling mobile cryogenic sample storage critical for clinical trials and live-cell imaging experiments outside traditional lab settings.
- Power adaptability includes 120V/240V AC and 12V DC mobile power supply compatibility for field applications in biomedical engineering and biotechnology research.
The user-friendly microprocessor control panel features a lock function to prevent accidental parameter changes, ensuring consistent ultra-low temperature conditions essential for molecular cloning workflows and biopharmaceutical production pipelines. Its cold wall evaporator design and finned heat exchanger with forced air cooling offer efficient heat rejection, further supporting stable temperature maintenance.
This portable ULT freezer is an essential solution widely adopted in synthetic biology research, gene editing workflows, and molecular diagnostic sample preservation, enabling secure, efficient, and temperature-stable transport of critical biomaterials across research and clinical domains.
Item Stats
Product details
| Volume | 25 liters (0.9 cu.ft.) |
| Storage Capacity | 18 standard 2″ boxes |
| Temperature Range | -86°C to -20°C @ 32°C (90°F) ambient, uniformity ±3°C at -80°C top to bottom, adjustable in 1°C increment |
| Presets | -86°C (default), -40°C and -20°C |
| Noise | <45 dB(A) at 1 meter |
| Ambient Operating | Temperature +5°C to +35°C (41ºF to 95°F) |
| Refrigerant | R-170 (Ethane) 10 – 12 grams |
| Evaporator | Cold wall (inner liner) |
| Heat Rejection | Finned heat exchanger with forced air cooling |
| Dimensions | 14 x 29 x 19″ |
| Weight | 46 lbs |
| Power | 120V or 240V, AC; 60Hz or 50Hz; or 12V DC from a mobile source (Current) 280 watts (4 amps @120V, 2 amps @240V) |
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