Product overview
Controlled-Rate Freezers (CRF) are designed to keep samples safe during the freezing process, mitigating the impacts of nucleation and heat fluctuations when samples make the transition from a liquid to a frozen state. The successful freezing of biological samples depends on the freezing rate, precise temperature control and reasonable temperature gradient (+50°C to -180°C). When the temperature drops to -180°C, most biological samples can be transferred to liquid nitrogen tanks for long-term storage. At the same time, if the freezing rate is too fast or too slow, it is easy to cause the loss of water in the cells or the formation of large ice crystals, which is not conducive to cell survival. By using a controlled rate freezer, selecting a suitable freezing liquid and setting a suitable temperature rise and fall rate, the above disadvantages can be effectively overcome. Experiment has proved that (after temperature compensation) a freezing rate of 1-3°C per minute can greatly improve the survival rate of cryopreserved cells.
Controlled-Rate Freezer is a high-performance, safe and reliable freezing system with adjustable temperature change rate. It has been widely used in various fields such as light industry, agriculture, medicine, In Vitro Fertilization (IVF), basic biological research, etc., for freezing lymphocytes, tissue banks, marrow cells, tumor cells, animal and plant cells, cardiomyocytes, etc. Controlled-Rate Freezer uses the latest temperature control technology and liquid nitrogen dispersion technology to make the program-controlled freezing process uniform and stable.
Product features:
①Excellent 304 stainless steel construction and foamed insulation, powder coated surface, double door seal with silicone sealing ring;
②Dual solenoid valves increase LN2 injection volume for precise temperature control and accelerated freezing;
③Specifically designed air handling system and liquid nitrogen injection system for precise temperature control and uniformity;
④Six standard pre-set profiles and ten user defined profiles;
⑤Chamber and sample temperatures are monitored by thermocouples which eliminate lag time and provide “real time” responsiveness;
⑥7” touch screen shows chamber temperature, sample temperature, working status, etc.;
⑦Connect to your PC and external printer.
