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產品櫥窗 ＞ Laboratory Freeze Drying |
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Laboratory Freeze Drying |
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 HOW FREEZE DRYING WORKS： |
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Pre-freezing：The sample is pre-frozen to convert water to ice bellow its eutective point. Afterward, the sublimation will proceed.
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Condensing：A condensing surface must be provide lower than - 40 °C before the vacuum on.
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Primary drying：The ice in the sample is converted directly to vapour without melting in the vacuum environment between 5 and 50 microns of Hg.
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Secondary drying： A source of heat to the product, controlled between - 40°C and + 65°C, must be employed to remove the residual moisture bound the solid material.
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FD - 1.5
- Six quick seal valve.
- Thermo-couple vacuum gauge.
- Condensor temperature belows to - 55 °C or - 85°C (cascade).
- Max. ice capacity 1.5 liters.
- Digital temperature display.
- Made of stainless steel.
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FD - 3
- Twelve quick seal valve.
- Thermo-couple vacuum gauge.
- Condensor temperature belows to - 55°C or - 85°C (cascade).
- Max. ice capacity 3 liters.
- Digital temperature display.
- Made of stainless steel.
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SHELL FREEZING BATH
- Two motor driven rollers.
- Bath temperature below - 40°C.
- Bath dimensions are 300L x 160W x 200H (mm).
- Accept up to 2000 ml flask.
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