15HP+7.5HP cascade ultra-low temperature system   

       The cold storage is equipped with a 15HP+7.5HP cascade ultra-low temperature refrigeration unit, aluminum row direct cooling, using low-temperature screw compressor, R404A refrigerant for the primary refrigerant, and R23 refrigerant for the secondary refrigerant. The screw cascade can achieve the ultra-low temperature range of large-scale cold storage or refrigeration equipment, and the application prospect is broad. The cascade unit can be used in quick-freezers, ultra-low-temperature refrigerators, quick-freezing tunnels, laboratory equipment, etc.                       

 -70℃