ULVAC Vietnam Representative Office

Vacuum Freeze Drying System

Vacuum Freeze Drying for low-volume production and research by the pharmaceutical industry require space-saving designs, low cost and high functionality. ULVAC has released the DFM Series to meet these demands.


  • Touch-panel operation, operation display, warning display, maintenance display
  • Shelf temperatures can be controlled by programs.
  • Completely automatic operation
  • Electronic expansion valve is provided standard.
  • Shelf plates are temperature-controlled by circulating a heating medium.
  • Standard lineup includes models supporting C/SIP.


  • Low-volume freeze-drying processes for
    pharmaceutical products


Pre-freezing temperature-50ºC max.
Pre-freezing speed+20ºC to -40ºC in 60 minutes or less
Cold trap temperature-65ºC max.
Initial evacuation speedAtmospheric pressure to 13 Pa in 20 minutes or less
Temperature regulation range while drying-40ºC to +70ºC
Drying tank typeCylindrical horizontal type, with manually operated
front-panel door
Drying tank materialSUS304
Shelf plate typeShallow box type, with circulating heating medium
Shelf plate materialSUS304
Shelf plate dimensions (mm)406w x 625L535w x 625L
Effective number of shelf levels234456
Tray dimensions (mm)400w x 300L520w x 306L
Number of trays46881012
Cold trap water supply volume20 kg/batch40 kg/batch
OptionsDry pump
Refrigerator air-cooled
PC data logging system
Electronic recording gauge
Digital eutectic point gauge