Basic cooling system

The compressor compresses the refrigerant into a high temperature and high pressure gaseous refrigerant, and then sends it to the condenser to dissipate heat (liquefaction) to become a medium temperature and medium pressure liquid refrigerant. The liquid refrigerant enters the evaporator space through the dryer filter and capillary tube. The space suddenly increases, the pressure decreases, and the liquid refrigerant vaporizes to absorb heat (vaporization) into a gaseous refrigerant. Then the gaseous refrigerant returns to the compressor to continue to compress, continue to cycle, and achieve refrigeration.

We have a selection of ultra-low temperature freezers with different cooling technologies:

1.Cascade ULT Series

Cascade ULT freezers use a two-stage refrigeration system to make the cabinet reach a preseted temperature. Ultra-low temperature inside the cabinet is achieved by heat relay. The high temperature level system is responsible for the primary cooling of -40 ℃, and the heat exchange with the low temperature level system through the action of intermediate heat exchanger, the low temperature level is responsible for the secondary cooling of -86 ℃. The two-stage cooling system is like two people running a relay race, and after the system cools to -40 ℃, the cooling task is passed to another cooling system.

The technology is stable and mature, and it is internationally accepted. lt can achieve reduced temperature and better efficiency compared to conventional refrigeration systems. The cooling performance of this system is still stable at high ambient temperature.

2.Auto-cascade Series

The auto-cascade ultra-low temperature freezers are devices intended for the storage of blood components and blood plasma, human cells, tissues, live virus, vaccines and other laboratory samples at ultra-low temperatures down to -86 ℃.

Superior performance and cost-effective are its impressive features.

3.Dual Cooling Series

Dual cooling ULT freezers are designed with 2 independent cooling systems which provides extra insurance for Bio-samples. There are two independent refrigeration systems each consisting of a high performance compressor, a condenser, and an evaporator. The two systems run one after the other. If one cooling system unexpectedly fail, the other will maintain an ultra-low temperature less than -70℃ ensuring that the samples not put at risk separately. These systems can operate in coordination or independently, providing flexibility and redundancy.

This technology can maximize the protection of your temperature-sensitive biological samples and shorten cooling time.