In biomedical research, pharmaceutical production, and clinical laboratories, ultra-low freezers (ULT freezers) are critical pieces of equipment for the storage of precious biological specimens. While standard laboratory freezers reach -20°C, ultra-low freezers reach as low as -86°C. This extreme cold preserves the long-term integrity of DNA, RNA, proteins, vaccines, enzymes, blood plasma, and other sensitive specimens.
At MediDepot, we provide a carefully selected range of ultra-low freezers from leading manufacturers such as Arctiko and Migali Scientific. Our products range from compact benchtop freezers for single workstations to large upright freezers accommodating hundreds of samples in biobank centers. Whether you manage a small laboratory or a large research institute, our selection includes a model that meets your storage capacity, power usage, and reliability needs.
Why Ultra-Low Freezers Are Needed
1. Biological Integrity Maintenance
Many biomolecules degrade quickly under standard freezer temperatures. For example, RNA begins degrading rapidly if not stored in ultra-cold conditions. By maintaining a stable temperature range from -40°C to -86°C, ultra-low freezers ensure that samples remain viable for years.
2. Reliable and Stable Cooling
Modern ULT freezers are built to ensure uniform temperature distribution throughout the cabinet. This minimizes the risk of hot spots where samples might be compromised. Consistency across the entire cabinet is critical in laboratories where every vial, plate, or cryobox matters.
3. Energy Efficiency
Although ultra-low freezers consume considerable power to achieve such low temperatures, contemporary models are designed with dual compressors, inverter technology, vacuum insulation panels, and environmentally friendly refrigerants. These innovations minimize operating costs and environmental impact while guaranteeing sample safety.
4. Security and Peace of Mind
Many ULT models today come with redundant cooling systems and alarm alerts. If one compressor fails, the second system takes over to maintain a secure storage environment. This reassuring feature ensures that even in unexpected equipment failures, your precious samples remain protected.
Types of Ultra-Low Freezers
1. Upright Ultra-Low Freezers
- Ideal for labs where quick accessibility and organized storage space are needed
- Shelving and drawer configurations allow easy categorization and tracking of samples
- Excellent choice for medium to large research centers
2. Chest Ultra-Low Freezers
- Offer excellent cold retention from the horizontal lid construction
- Typically more energy efficient, but occupy more floor area and require bending for access
- Best suited to facilities that prioritize long-term stability over quick access
3. Benchtop and Undercounter Ultra-Low Freezers
- Compact, space-saving designs suited for small laboratories
- Can be mounted above or below workbenches for convenient sample access
- Ideal for individual researchers or clinical stations with limited space
Featured Products from MediDepot
1. Arctiko ULUF P10 MV: Countertop Ultra-Low Freezer
- Volume: 0.25 cu. ft. (7 L)
- Operating temperature range: -25°C to -86°C
- Perfect for workstations or individual use. Despite its small size, it maintains the same ultra-low temperature reliability as larger models.
2. Arctiko ULUF P65 MV: Compact Biomedical Freezer
- Volume: 1.9 cu. ft. (54 L)
- Uses less than 100 g of refrigerant, making it environmentally friendly and energy efficient
- Flexible mounting in tight laboratory spaces without sacrificing performance
3. Arctiko SUF 100: Ultra-Low Freezer Chest, Small
- Capacity: 2.5 cu. ft. (71 L)
- Temperature range: -40°C to -86°C
- Quiet operation, low maintenance, and ideal for busy laboratories
4. Arctiko ULUF 125: Undercounter Freezer
- Capacity: 3.3 cu. ft. (94 L)
- Under-bench compact design ideal for space-limited labs
- Low noise operation and free from harmful refrigerants such as HCFCs or CFCs
5. Arctiko ULUF P400 MV: Upright Biomedical Freezer
- Volume: 13.4 cu. ft. (381 L)
- Uses TRUE DUAL™ technology, offering uniform performance even if one compressor fails
- Spacious upright design perfect for large laboratories
6. Arctiko ULUF P830 MV: Large Upright Freezer
- Volume: 28.7 cu. ft. (815 L)
- Redundant dual compressor design for maximum sample protection
- Perfect for large biobanks and long-term storage centers
7. Migali Scientific EVO-19-ULT: Upright Ultra-Low Freezer
- Capacity: 18.7 cu. ft. (528 L)
- Temperature range: -40°C to -86°C
- Cascade cooling system with hydrocarbon refrigerants for eco-friendliness
- Energy-efficient inverter compressors and smart monitoring system
How to Choose the Right Ultra-Low Freezer
| Requirement | Recommended Model | Reason |
| Minimal space / personal use | Arctiko ULUF P10 MV | Compact countertop design |
| Small but flexible capacity | Arctiko ULUF P65 MV | Eco-friendly and versatile |
| Under-bench installation | Arctiko ULUF 125 | Fits under workstations |
| Small to mid-sized labs | Arctiko SUF 100 (Chest) | Energy efficient and stable |
| Large capacity storage | Arctiko ULUF P400 MV or P830 MV | Upright, spacious, dual system |
| Energy-conscious option | Migali EVO-19-ULT | Inverter technology and smart monitoring |
Why Buy Ultra-Low Freezers from MediDepot?
- Extensive range of capacities: From 0.25 cu. ft. to nearly 29 cu. ft., offering a model for all laboratory needs
- Trusted brands: MediDepot partners with Arctiko and Migali Scientific, both recognized for reliability and innovation
- Advanced technology: Most units feature dual compressors, vacuum insulation, and environmentally friendly refrigerants
- Sample safety first: TRUE DUAL™ and cascade cooling systems offer uninterrupted storage protection
- Eco-friendly designs: Reduced energy consumption and environmentally friendly refrigerants
Frequently Asked Questions (FAQ)
Q: At what temperature do ultra-low freezers operate?
A: Ultra-low freezers typically range from -40°C to -86°C, with most standard models reaching -80°C.
Q: What is the difference between upright and chest ultra-low freezers?
A: Upright units provide shelving and quick access to samples, while chest units are more energy efficient due to their horizontal lid construction. Chest units occupy more floor area and require bending for access, making them better suited for long-term storage priority.
Q: How long can samples be stored in a ULT freezer?
A: Properly sealed samples can remain stable for years or even decades at -80°C, depending on the sample type and storage conditions.
Q: Are ultra-low freezers power hungry?
A: While ULT freezers do consume significant power, newer models greatly reduce energy usage through inverter compressors, dual systems, and environmentally friendly refrigerants.
Q: Which model is best for small laboratories?
A: The Arctiko ULUF P65 MV or the Arctiko ULUF 125 are excellent space-saving choices for small labs, offering good capacity without requiring extensive floor space.
Conclusion
When it comes to protecting valuable biological samples, ultra-low freezers are the only option. They provide the extreme cold, reliability, and security that research laboratories, pharmaceutical companies, universities, and medical institutions require.
The ultra-low freezers range at MediDepot has a solution for every need, from compact countertop models to large upright freezers with state-of-the-art dual-system reliability. By combining trusted brands like Arctiko and Migali Scientific with sustainable engineering, MediDepot is confident that your laboratory can store its valuable materials securely and responsibly.
Explore our ultra-low freezers range today and discover the perfect solution for your lab's cold storage needs.