QFN-FSD-1 laboratory spray freeze dryer is an original product elaborately developed by Shanghai Qiaofeng Industrial Equipment Co., Ltd. in combination with spray drying technology and vacuum freeze drying technology. Since the product came out, we have been steadily improving in function, performance and ease of use. The processing capacity of spray freeze dryer in each batch is up to 2000ML/time, and the drying time does not exceed 6 hours. The processing capacity of customized spray freeze dryer in each batch reaches 5000ML/time and 10L/time, gradually forming a series of spray freeze drying products from laboratory, pilot to pilot.
Scope of application:
QFN-FSD-1 laboratory freezing spray dryer is suitable for low-temperature drying of heat sensitive, viscous, active materials and materials with high sugar content, such as natural product extracts of Chinese herbal medicine, dairy products, biological agents, enzyme preparations, fruit juice, polymer materials, etc.
Main features:

1. The spray freeze dryer in QFN-FSD-1 laboratory organically combines spray drying and vacuum freeze drying. The required drying time is extremely short, and the drying time is not more than 5 hours (2000ML/time), which greatly shortens the traditional vacuum freeze drying time. The dried materials are powdery solids. The original biological and chemical properties of spray freeze-dried articles are basically unchanged, and they are easy to be stored for a long time;

2. The QFN-FSD-1 laboratory spray freeze dryer adopts the air-cooled condensing totally enclosed compressor refrigeration system, which can refrigerate quickly, the temperature of the icer is low, the capacity to absorb water is strong, and the temperature and vacuum display are digital, accurate and intuitive;

3. The frozen spray drying articles are naturally heated and sublimated by air to maintain the safety of the samples;

4. The host is equipped with a vacuum pump power plug, which does not require an additional power supply and is easy to use;

5. The vacuum connection adopts internationally recognized standard clamps, which are convenient and reliable;

6. Stable performance, easy operation, and low noise;

7. The QFN-FSD-1 laboratory spray freeze-drying machine, compared with the traditional freeze-drying machine, can quickly freeze dry the liquid materials that are easy to stick to the wall and contain organic substances (fruit juice, Chinese herbal extracts, etc.), and the dried products are in a granular state, with good fluidity, and the particle size can be adjusted within a certain range.

Technical parameters:
1) Color LCD touch screen parameter display: drying chamber temperature/peristaltic pump speed/fan frequency/needle frequency/drying chamber pressure;
2) Processing capacity: 2000ml/time (drying time shall not exceed 6 hours. In addition, Shanghai Qiaofeng Industrial Equipment Co., Ltd. has developed a 3L/time, 5L/time, 10L/time spray freeze dryer, welcome to consult);
3) The spray head is a new concentric spray head. The atomization is not eccentric, and the spray head can move up and down, which is conducive to the adjustment of the best atomization process;
4) Spray freezing temperature:<- 15℃；>- 15℃；>
5) Cold trap temperature: ≤- 60℃；
6) Vacuum pump power<2kw;> 2kw；>
7) Ultimate vacuum pressure<20pa (no load) 20pa (unloaded);>
8) Spray pressure: 2-5BAR (spray pressure adjustable);
9) Air compressor gas production rate: 4.2M3/h;
10) Cold air volume: 5.5M3/min;
Some users of laboratory spray freeze dryer (in no particular order)
Institute of Biology, Guangdong Academy of Agricultural Sciences/Guangdong Pharmaceutical College/Changhai Hospital/Xihua University/Beijing Agricultural College/Beijing Institute of Electronic Technology/Henan University of Science and Technology/Heilongjiang University of Traditional Chinese Medicine/Beijing Academy of Agricultural Sciences/Nanjing University of Aeronautics and Astronautics/Nanjing Agricultural University/Xuzhou Institute of Engineering/Hubei University for Nationalities/Coca Cola Company (USA)/National University of Singapore/Dabei Agricultural Pharmaceutical Co., Ltd./Hong Kong University of Science and Technology/South China Agricultural University/Tongji University/Xinqiao Hospital/Huaqiao University/Henan University of Science and Technology/Jinan University/Nanjing University/Wuhan University of Light Industry/Wuhan Institute of Hydrobiology, Chinese Academy of Sciences/Yunnan Agricultural University/Hunan Agricultural University/Beijing Institute of Chemical Defense Technology/Sichuan University of Technology/Zhejiang University/Shanghai Business School