
SED-2.52XDG-O — Vacuum Freeze Dryer
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SED-2.52XDG-O Vacuum freeze dryer with 2.52 m2 effective shelf area. 7 shelves + 1 radiation shelf, shelf spacing 45 mm, shelf dimensions 410 x 905 mm. Shelf temperature range -35 to +80 C (min ≤-35 C no-load); cold trap
Funktionsweise
Material is frozen in-situ on the shelves via the cold trap pre-freezing function, then the chamber is evacuated to ≤2 Pa. Heat is applied through the shelves in controlled multi-stage ramps (sublimation then secondary drying) while the cold trap (-55 C) captures sublimated water vapor. The condensed ice is defrosted electrically after the cycle. This preserves biological activity and allows easy rehydration.
