An Ultra-Low Temperature (ULT) Freezer is a specialized cold-storage system designed for the long-term preservation of highly sensitive biological, medical, and research samples at temperatures ranging from −80°C to −86°C. These freezers are essential where sample integrity, stability, and safety are critical.
ULT freezers provide reliable temperature control, high storage efficiency, and advanced safety systems, making them suitable for continuous operation in demanding laboratory and industrial environments.
Who Uses ULT Freezers?
- ULT freezers are widely used by:
- Hospitals and medical centers
- Blood banks and diagnostic laboratories
- Vaccine storage and epidemic prevention units
- Research and development laboratories
- Universities and academic institutions
- Biotechnology and pharmaceutical facilities
- Military and defense research units
- Marine and fisheries research organizations
- Automotive, metallurgical, and electronics laboratories
- Industrial testing and analysis centers
What Is a ULT Freezer Used For?
- Ultra-low temperature freezers are used to store and preserve:
- Vaccines, viruses, and bacteria
- Blood, blood plasma, and blood components
- DNA, RNA, and genetic materials
- Sperm, semen, and reproductive samples
- Bone marrow and tissue samples
- Biomedical and biological products
- Research samples and test specimens
- Marine and pelagic fishery products
- Special materials requiring cryogenic testing
Construction Highlights
- Advanced Insulation Design
- Vacuum-insulated and polyurethane panels for superior thermal performance
- Increased internal storage capacity without increasing external footprint
- Reduced heat transfer and lower energy consumption
- Optimized Evaporator Design
- Enhanced evaporator geometry for increased heat-exchange efficiency
- Faster temperature pull-down and uniform cooling
- Multi-Layer Door Sealing
- Multi-layer silicone gaskets ensure airtight sealing
- Maintains internal temperature during power interruptions
- Minimizes cold air loss
- Ergonomic Handle & Mobility
- Heavy-duty locking handles for secure closure
- Optional padlock support for sample security
- Lockable castor wheels for easy movement
Monitoring System
- 4.3-inch / 7-inch HMI touchscreen with PLC control
- Adjustable temperature range: −40°C to −86°C
- Temperature accuracy: ±1°C
- Multi-level password protection
- Delayed start and safe shutdown functions
- Audible and visual alarms for:
- High / low temperature
- Door open
- Ambient temperature rise
- Condenser overheating
- Filter blockage
- System failure
- Real-time data logging and temperature graph display
- USB port for data storage and transfer
Mechanical Features
- Inner chamber made of SS 304 stainless steel
- Outer body with powder-coated galvanized steel
- Vacuum release port for easy door opening
- Removable stainless-steel shelves with insulated inner doors
- High-density insulation thickness: 90–120 mm
- Optional accessories:
- Digital or ink chart recorder
- CO₂ / LN₂ backup system
- Storage racks and boxes
- Remote alarm system
Refrigeration System
- High-efficiency, low-noise imported compressors
- Environment-friendly CFC/HCFC-free refrigerants
- Cascade refrigeration system for stable ultra-low temperatures
- Energy-efficient fan motors for consistent airflow
Applications
- Medical and healthcare systems
- Epidemic prevention and vaccine storage
- Scientific and academic research
- Military and defense research
- Biotechnology and biomedical engineering
- Industrial material testing
Key Features of Ultra-Low Temperature Freezers
- Temperature range: −20°C to −110°C
- Capacity range: 50 L to 1000 L
- Low energy consumption
- High-performance compressor cooling
- Digital microprocessor temperature control
- Platinum resistance temperature sensors (PT-100)
- Internal alarm and data logging system
- USB data export in open format
- Double insulation for thermal efficiency
- Easy-opening hinged doors
- Optional automatic temperature backup systems
Technical Specifications (Overview)
- Working Range: −40°C to −80°C
- Temperature Sensitivity: ±0.1°C
- Controller: PID microprocessor-based
- Refrigerant: Non-CFC mixed gases with cascade system
- Power Supply: 220V, Single Phase, 50 Hz
- Construction: SS-304 inner chamber, powder-coated outer body
Benefits of Using a ULT Freezer
- Extremely stable ultra-low temperature storage
- Low noise and energy-efficient operation
- Rapid temperature recovery after door opening
- Reduced environmental impact
- Advanced safety and monitoring systems
- Durable, corrosion-resistant construction
- User-friendly interface with real-time diagnostics
Dimensions:
Conclusion
- Ultra-Low Temperature Freezers are essential for laboratories and industries that require secure, long-term preservation of sensitive biological and research materials. With precise temperature control, robust construction, energy efficiency, and advanced safety features, these systems ensure maximum sample protection and operational reliability.