冷冻干燥机是将含水物品预先冻结，然后将其水分在真空状态下升华而获得干燥物品的一种技术方法。经过冷冻干燥处理的物品易于长期保存，加水后能恢复到冻干前的状态并保持原有的生化特性及物质结构。对于热敏物质如抗菌素、疫苗、血液制品、酶激素和其它生物制品，冷冻干燥技术更能显示其优越性。
田枫FD实验室真空冷冻干燥机系列采用风冷冷凝式制冷系统，冷阱可作预冻，不锈钢结构，透明干燥室，便于观察冷冻干燥的全过程。
Freeze-dryer working principle:
Freeze drying is an advanced method of dehydration,whose process takes advantage of the principle of ice crystal's lyophilization under purified vacuum condition,in which the water In ice form on the frozen goods can be directly lyophilized into steam without melting in advance,thus the goods are dried.Through freeze drying processing items are easy to long-term preservation, after adding water,which can be restored to the original state and keep the biochemical characteristics and structure of the material.Freeze drying has more demonstrated its advantage for thermally labile substances,such as antibiotics、vaccine、blood products、enzymes and other biologics.
TianFeng FD series of freeze dryer adopt air-cooled condenser,cold trap can be used for pre-freezing,stainless steel,transparent drying chamber ,easy to observe the whole process of freeze-drying.
主要特点Main features
1.采用进口全封闭制冷机组，温度低，捕水能力强。采用风冷方式散热，不需水冷却：
2.专利设计导流筒，提高冷阱有效面积，快速冻干；
3.原装进口充气阀，可充干燥氨气或情性气体：
4.真空连接采用国际通用标准件，拆卸安装简易方便，密封性能可靠；
5.冷阱温度及样品真空虔均采用液晶屏显示，简洁明确；
6.特定设计的触摸软键可快速准确地实现各功能设置，操作简单方便；
7.透明钟罩式干燥室，自然加热，安全直观；
8.特殊设计的不锈钢样品架，普通型样品盘间距可调，层数自由设定；
9.不锈钢冷阱和台面，清洁卫生，美观耐腐蚀。
Main features Main features
1.Imported completely closed refrigeration unit,low temperature water-capture capability.Using air-cooled heat,no water cooling ;
2.Patented design draft tube to improve the effective area of cold traps,quick freeze;
3.Imported inflation valve,rechargeable dry nitrogen or inert gas;
4.Vacuum connection using internationally accepted standard parts,demolition installation simple and convenient,reliable sealing performance;
5.Cold trap temperature and vacuum samples are used LCD display,clear and concise ;
6.Touch the softkey particular design can be quickly and accurately implement the feature set,simple operation;
7.Transparent Bell drying room,natural heating,safe and intuitive;
