Welcome To Beijing Jiahe Ruitong Equipment Co.,Ltd’s Website!
Tel:+86-010-8361 1602Skype:lucywen2010
Position > Laboratory freeze dryer


Beijing Jiahe Ruitong Equipment Co.,Ltd.
Address: Room 404, Building No.1,Gongchen Street No.181, Liangxiang, Fangshan District, Beijing, China.
Tel:+86-010-8361 1602
Manager: Lucy Wen
Mobile/Wechat : +86-156 1150 1972
Email :lucywen@ruitongequipment.com
Website: www.ruitongequipment.com
Model: RTFD-18HA
General Introduction: Model RTFD-18HA vertical freeze dryer is suitable for experiment in laboratory. This machine has heating shelves and programmable function.
Freeze Drying Theory:  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.
Main features
 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, 
low noise compressor, 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

 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 -80℃     
 Stainless steel chamber used for organic solvent sample
 Check valve for pump to prevent oil sucked into chamber
 RS232 and software: Check and keep freeze drying data on computer, control freeze dryer through PC

Technical Parameter RTFD-18HA