MSLFV05 China Cheap Vacuum Freeze Dryer Lyophilizer MachineFreeze drying is an important process in sample prep procedures and for the preservation and storage of biologicals, pharmaceuticals and foods. Of the various methods of dehydration, freeze drying (lyophilization) is especially suited for substances that are heat sensitive. Other than food processing (e.g., coffee, whole dinners), freeze drying has been extensively used in the development of pharmaceuticals (e.g., antibiotics) and preservation of biologicals (e.g., proteins, plasma, viruses and microorganisms). The nondestructive nature of this process has been demonstrated by the retention of viability in freeze dried viruses and microorganisms.
Freeze drying is a process whereby water or other solvent is removed from frozen materials by converting the frozen water directly into its vapor without the intermediate formation of liquid water. The basis for this
sublimation process involves the absorption of heat by the frozen sample in order to vaporize the ice; the use of a vacuum pump to enhance the removal of water vapor from the surface of the sample; the transfer of water vapor to a collector; and the removal of heat by the collector in order to condense the water vapor. In essence, the freeze dry process is a balance between the heat absorbed by the sample to vaporize the ice and the heat removed from the collector to convert the water vapor into ice.
Technical Specifications of pump: Parameters/Models | MSLFV05 |
Pump speed(L/s) | 2 |
Ultimate pressure(Pa) | 6×10² |
Rotary speed(r/min) | 1700 |
Motor power(Kw) | 0.37 |
Working voltage(V/HZ) | 110/60 |
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