Portable ULT Freezer NPUF-100 offers a 25-liter storage capacity for preserving essential samples. It ensures reliable performance with a temperature range of 18℃ to -45℃. This unit uses helium as a refrigerant for efficient and eco-friendly cooling. It features high-performance vacuum-insulated panels with polyurethane foam for superior insulation. Our freezer maintains quiet operation with noise levels below 50 dB.
| Storage capacity | 25L |
| Temperature range | 18℃ to -45℃ |
| Ambient temperature | 25°C, Empty cabinet |
| Temperature control capability | Target temperature ±1℃ |
| Time | Take 1.5 hours from 25℃ to -45℃ |
| conditions | Non-corrosive, Non-flammable, Non-explosive, Altitude up to 2000m (Temperature 5℃ to 35℃, maximum relative humidity 80%) |
| Refrigerant | Helium |
| Heat transport system | Gravity-driven thermosiphon |
| Cooling engine | Free-piston stirling cooler |
| Insulation | High-performance vacuum-insulated panels, polyurethane foam |
| Control sensor | One RTD (PT100 Class B), precision±0.3 |
| Security | Lockable lid |
| Warm and cold alarms | Setpoint ±10℃ |
| Defrost method | Manual |
| Noise | |
| Steady state energy | 30W |
| Maximum power consumption (current) | 100W (0.5A at 220V, 4.6A at 24V) |
| Power supply | 100V AC to 240V AC; 50Hz,60Hz; 12V DC to 24V DC |
| Internal dimension | 300×250×300 mm |
| External dimension | 616×392×455 mm |
| Packaging dimension | 710×480×530 mm |
| Net weight | 17.5 kg |
| Shipping weight | 21 kg |
Portable ULT Freezer NPUF-100 is used for preserving vaccines, biological samples, and pharmaceutical materials under ultra-low temperature conditions. It is widely applied in laboratories, hospitals, research institutes, and field-based medical operations.
