Stoppering Vertical Freeze Dryer OLB-FD12T, 3 Material Trays (CAT#: STEM-AL2-2291-ZJF)

The Stoppering Vertical Freeze Dryer OLB-FD12T, 3 Material Trays is a laboratory freeze dryer that removes water from heat sensitive samples by sublimation under vacuum. The sample is frozen first, then held under reduced pressure so that ice passes directly into the vapour phase and is collected on the cold trap. The cold trap is cooled well below the sublimation temperature, which keeps moisture away from the vacuum pump and maintains the working pressure. Process parameters are followed on the touch screen, where sample temperature, cold trap temperature and vacuum are shown as numbers and as curves. Data from each run is stored in the controller, so a later batch can be compared with earlier ones without external logging. The stainless steel cold trap and work top resist corrosion and can be wiped down between runs. Drying takes place inside a transparent chamber, which allows the operator to watch the product while the cycle proceeds. A manual stoppering mechanism is fitted, so vials can be closed inside the chamber while still under vacuum. A USB port is provided so that the recorded cycle data can be taken away on a memory stick and filed outside the instrument.

Cold trap temperature: <=-60 deg C
Ultimate vacuum: <10 Pa
Water capture capacity: 4 kg/24 h
Cold trap and work top made of stainless steel
Transparent bell jar drying chamber
Large cold trap opening without internal coil allowing use as a pre freezing bath
Seven inch colour liquid crystal touch screen without separate keys
Simultaneous numeric and curve display of sample temperature, cold trap temperature and vacuum level
Historical data storage covering approximately one month of operation
Industrial embedded operating system with ARM9 control circuit, 32 M memory and 128 M flash
USB interface for direct export of current and historical data to a memory stick
Host cold trap size: 215 x 250 mm (diameter x height)
Host dimensions (W x D x H): 480 x 620 x 920/1370 mm
Freeze drying area: 0.09 m2
Material tray: 200 x 20 mm (diameter x height)
Number of material trays: 3
Manual stoppering function
Supplied with anti oil return vacuum pump

Manual stoppering function for seating vial closures under vacuum
Shelf arrangement sized for vial loads rather than bulk trays
Vertical floor standing cabinet format
Stainless steel cold trap and work top resistant to corrosion and easy to clean
Transparent bell jar drying chamber giving a direct view of the product
Cold trap with wide opening and no internal coil, usable for sample pre freezing
Colour touch screen presenting operating parameters as numbers and curves
Storage of about one month of historical run data for comparison between batches