Summary
SFD-0.5 mini freeze dryer machine is consisted of freezing and drying pot, vacuum pumps, heating system, refrigerating machines, pre-frozen system and control system, etc.
In composition and design, SFD-0.5 is a miniaturization of large equipment, so that craft curve made by SFD-0.5 could extensively apply with large equipment's industrial production. Compared with the larges, SFD-0.5 has a larger capacity in vacuum, refrigeration and heating, convenient for various trial studies of specific technics.
Working Principle
After pretreatment, put the foodstuff in a low temperature and vacuum surroundings, the inner moisture of the foodstuff will sublimate from solid state to gaseous state so as to remove the moisture and preserve the foodstuff for a long time.
SPECIFICATION OF SFD-0.5 VACUUM FREEZE DRYER
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drying area
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average moisture output
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tray size
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tray qty
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working vacuum
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heating plate temp.
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electric heating
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cold load
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power required
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0.5sqm
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0.5kg/h
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340*500*35mm
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6pcs
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133~13pa
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<120ºC
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1.5kw
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1.2kw
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7.75kw
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Main Features
1) Radiation heating, heat products more evenly and quickly.
2) International brand of machine parts, run more steadily.
3) PLC+touch screen control. Remote monitoring is for option.
4) Fully miniaturization of large equipment, craft curve made by SFD-0.5 could extensively apply with large equipment's industrial production.
5) FD products processed by SFD-0.5 is featured by no change in shape and color, in sponge structure and no shrink, good rehydration nature and same nutrition with fresh products.
Detailed Images
Name: Refrigeration system
Brand:French Tecumseh compressor, Denmark Danfoss expansion valve and Danfoss or America Emerson filters and valves.
Cold trap and air cooler refrigerate by refrigerant expansion valve directly.
Name: Vacuum pump
Brand: Leybold
Vacuumize from normal pressure to 133Pa within 10 min when it is no loading. Working pressure of vacuum room is 133Pa~13Pa.
Name: Electrical control system
Brand:Siemens PLC, touch screen, Leybold vacuum sensor, America Omijia temperature sensor and France Schneider electrical components.
Control method:PLC+touch screen; vacuum degree adjustable; it alerts when overpressure. Remote monitoring is for option.
Name: Electrical control system
Compared with common drying method, freeze dried products is featured by no shrink, keeping the same shape and nutrition with the fresh products, with a good rehydration nature.
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