Description:
Labotemp Portable Ultra Low Temperature Freezer ULF-25 is a high-performance -86°C ULT freezer designed for critical low-temperature storage and transport. Using advanced free-piston Stirling cooling technology, this ultra low freezer delivers fast temperature pull-down, precise stability, and reliable operation in demanding environments. With a compact 25-liter capacity and a wide operating range from +18°C to -86°C, it is ideal as a low temperature freezer for laboratories, pharmaceutical cold-chain logistics, biological sample storage, and field research.
Engineered for portability and efficiency, the ULF-25 works as a small laboratory freezer with both AC and DC power support, making it suitable for fixed labs and mobile applications. It maintains temperature uniformity within ±1°C, ensuring sample integrity at all times. As a compact ultra low deep freezer, it is widely used by research institutes, hospitals, and life science laboratories seeking dependable ultra low temperature laboratory freezers with low maintenance needs.
Why Choose Labotemp Ultra Low Temperature Freezer ULF-25?
✓ Advanced Stirling Cooling Technology: High-efficiency, vibration-free cooling with rapid temperature pull-down and low energy consumption.
✓ Portable & Versatile Power Options: Supports AC and DC power, making it suitable for laboratories, transport, and field operations.
✓ Trusted Ultra Low Temperature Freezer Manufacturers: Labotemp delivers reliable, compact, and high-accuracy ultra low lab freezer solutions for professional applications.
Specifications :
| Temperature Range |
+18°C to –86°C |
| Volume |
25 L |
| Power Supply |
100V AC–240V AC, 50/60Hz; 12V DC–24V DC |
| Maximum Power / Current |
100 W (0.5A @220V, 4.6A @24V) |
| Refrigerant |
Helium (He) |
| Heat Transport System |
Gravity-driven thermosiphon |
| Cooling Engine |
Free Piston Stirling Cooler |
| Temperature Control Accuracy |
Target temperature ±2°C |
| Performance (25°C ambient, empty) |
~3.5 hours from 25°C to –80°C |
| Steady-State Power Consumption |
75 W |
| Insulation |
High-performance vacuum insulated panels + polyurethane foam |
| Noise Level |
<55 dB |
| Control Sensor |
RTD (PT100 Class B), precision ±0.3 |
| Alarm |
High/low temperature alarm (setpoint ±10°C) |
| Security |
Lockable lid |
| Defrost Method |
Manual |
| Environmental Conditions |
Non-corrosive, non-flammable, non-explosive; altitude ≤2000 m |
| Interior Dimensions (L×W×D) |
300×250×300 mm |
| Exterior Dimensions (L×W×D) |
616×392×455 mm |
| Net Weight |
17.5 kg |
| Shipping Dimensions (L×W×D) |
710×480×530 mm |
| Shipping Weight |
21 kg |
Features :
- Dual Power AC/DC
- Ultra-low temperature cooling down to –86°C
- Portable and compact design with lightweight construction
- Free-piston Stirling cooling technology
- Stable temperature control with minimal fluctuations
- Low noise operation suitable for laboratory and field use
- Suitable for transportation and mobile cold-chain applications
Applications :
Laboratory ultra-low temperature storage, biological sample storage and transportation, pharmaceutical cold-chain logistics, clinical medicine and life-science research, industrial extreme-environment simulation testing, and field research including mobile labs and outdoor applications.
Optional Accessories
- Vaccine holder
- Temperature recorder with network
144 E, Midwest Avenue, Casper WY 82601, USA
