Outer Chamber made of CRC sheet duly powder coated and inner chamber is made
of stainless steel (non-magnetic).
Housed in a super steel frame it is mounted on swivel casters.
Complete with Perspex see through lid, gasket and control instruments i.e.
Microprocessor Based Digital Temperature Controller for measurement Temp.
& Electronic Digital Vacuum Indicator.
The unit made out of hermetically sealed compressor and with 100 liters/min
direct motor drive rotary vane type vacuum pump of double stage with
air ballast having ultimate vacuum of 1x10-3 torr on pump head.
High grade PUF INSULATED between outer and inner chamber for minimal thermal
Condenser Trap: All non-magnetic stainless steel fabricated, argon welded,
dished bottom for complete effluent removal.
Fitted with microprocessor based temperature control system with inbuilt
HI/LOW temperature deviation alarm having temperature range upto -80OC.
Refrigeration Coils made of copper bonded to outside of condenser heavily
Vacuum Drum has 6 or 12 port manifold (Main drying chamber) made of stainless
steel non-magnetic grade with Perspex top cover. (CFC FREE AND PUFF INSULATED)
Freeze drying is the process of removing the moisture from a biological product while
maintaining the integrity of the biological products, chemical structure and
activities. Freeze Drying technology is used in particular for removal of moisture
from the products usually biological origin without causing any noticeable change
in the origin without causing any noticeable change in the original characteristics.
Freeze Drying is also the preferred in the field of Phary, Chemistry and in conversation
Vacuum Drying Drum Size
22.5cm (dia) x 25.5cm (ht)
CRC duly power coated on caster wheels
MOC (Main Drying Chamber)
Stainless Steel (Non-Magnetic)
-40OC or -60OC or -80OC (at ambient temperature of 20OC)
Microprocessor based temperature control system with inbuilt HI/LOW temperature
Electric vacuum transducer
Digital vacuum indicator
Made of Silicon rubber
Ultimate Vacuum (Pump Head)
1x 10-3 torr
No. of Draying Ports
100 liters/ min direct motor drive rotary vane type vacuum pump of double
stage with Air ballast having ultimate vacuum of 1x10-3 torr on pump
head Optional -: HIND HIVAC Double Stage Pump with Same Specification.
Heat Rack (Option)
With 2/3 individually heated racks for accelerated freeze drying of small
samples in bulk (Tray, Petri Dishes, Beakers etc) (Adoptable to the
main drying chamber)
HOW FREEZE DRYER WORKS
All units are provided with following basic requirements:- A drying Chamber or manifold
on/in which the containers with pre-frozen samples are connected/placed. A high
vacuum double stage pumping system with gas ballast with ultimate vacuum of less
than 50 microns in the system and 10 microns on pump head to facilitate the vapour
flow to the condenser for speedy drying. A low temperature condenser to trap
the moisture vapour and allow the non-condensable vapours to go to the pump for
release to the atmosphere.
ADVANTAGE OF FREEZE DRYING
Heat sensitive biological materials may be freeze-dried without affecting their potency.
The dried materials may be stored for years at room temperature without loss
of their original characteristics. The freeze-dried material may be transported
and shipped in small containers, and no provision is necessary for refrigeration
enroute. Bacterial growth and enzyme action do not take place in freeze-dried
products and proteins do not coagulate. Oxidation of many materials such as hemoglobin
and vaccines is completely prevented when drying and sealing is done under high
Secondary Drying Unit
Heat rack with 2/3 individually heated rack for accelerated freeze drying of small sample in bulk.