Freeze dryer is widely used in medicine, pharmacy, biology research, chemical industry and food production ,etc. After freeze drying process, a long term preservation for material is much easier. They can be restored to original state and maintain their chemical and biological characteristics after being watered. The vacuum freeze drying technology, which is also called sublimation drying, is a technical method that freezes the samples in advance, and then sublimates its moisture under vacuum state.
RTFD-12HD top press with manifold type freeze dryer is used for freeze drying experiment in laboratory.
It is vertical freeze dryer, suitable for drying products in bulk, in vial and in flask.. This machine has heating shelves and programmable function.
*Control panel display in English
*Vacuum can be displayed in Pa or mbar
*Acrylic drying Chamber is safe and easy to view sample status
*Small and compact structure , with easy and convenient operation
*Vacuum pump with high pumping speed , to reach good final vacuum
*With electricity heating shelf, increasing drying speed
*Safety control system used for shelf heating, to control heating rate
*With programmable function, shelf temperature can be set in drying process
*Hundreds of recipe can be stored, and each recipe can be set up 36 segments
*Condenser with uniform and good ice capture function
*Big opening condenser with external coiling tubes, has pre-freezing function
*With USB port to output freeze drying data, open and view data in Excel format
*Color LCD touch screen displays running time, display sample temperature, condenser temperature,
vacuum degree, and save data automatically
*Display sample temperature curve, condenser temperature curve and vacuum curve
*Historical curves and records can be checked, and storage cycles can be modified in real time
*The user level and password can be set up, and the operation management can be divided
*Powerful sensor calibration functions to ensure accuracy of measured values in long-term use
*CFC-free refrigerant, international famous brand compressor, low noise,good efficiency
*Condenser, trays, drying shelf and pre-freezing shelf are made of stainless steel 304, anti-corrosion
*Stainless steel air inlet valve (drain valve) is safe, anti-corrosion , no leak
*Real-time alarm display, historical alarm query function for fault diagnosis and equipment maintenance
| Freeze drying area |
0.08m2 |
0.1m2(optional) |
| Ice Condenser capacity |
3-4 kg /24h |
| Condenser temperature |
-50ºC (-80 ºC optional ) |
| Final vacuum |
< 10 Pa |
| Shelf |
With electric heating function |
| Shelf temperature |
Ambient temperature to +80 ºC |
| Tray |
Ф180mm , 3 layers
Spacing 70mm |
Ф180mm , 4 layers
Spacing 50mm |
| Bulk capacity |
0.8L, 10mm thickness |
1L, 10mm thickness |
| Vial capacity Φ12mm |
492 pcs |
656 pcs |
| Vial capacity Φ16mm |
279 pcs |
372 pcs |
| Vial capacity Φ22mm |
147 pcs |
196 pcs |
| Condenser size |
Ф220mm, 240mm deep |
| Drying chamber size |
Ф260×540mm |
| Vacuum Pump Flow Rate |
2 L/S, 7.2 m3/h |
| Defrosting |
Off Cycle Defrosting |
| Manifold |
with 8 ports |
| Flask |
Round bottom flask:1000ml,500ml ,250ml ,100ml,50ml
Wide-neck flask:600ml,1200ml |
| Cooling |
Air cooling, ambient temperature≤25ºC |
| Voltage |
220V/50 Hz, 110V/60Hz, 120V/60Hz |
| Power |
1400W (-50ºC)
1800W (-80ºC) |
| Dimension |
580x500x(720+540)mm (-50ºC)
770x550x(720+540)mm (-80ºC) |
| weight |
115kg (-50ºC)
175kg (-80ºC) |
Vacuum control valve
Intake backfilling filter
Air inlet filter for pump
Nitrogen inflation valve
Eutectic point test device
Electricity heating defrosting
Exhaust filter/oil mist filter for pump
Automatic backfilling / drainage system
Cascade refrigeration ,condenser temperature -80ºC
Stainless steel chamber used for organic solvent sample
Check valve for pump to prevent oil sucked into chamber
Ley bold pump or other international brand vacuum pump
RS232 and software: Check and keep freeze drying data on computer, control freeze dryer through PC
Special requirements can be customized
Other type of freeze dryer in this series :
How to choose a freeze dryer
The RTFD-12HD series has the following standard configurations
Audited Supplier 
){kind=link}