The vacuum freeze dryer is different from the bell-shaped small freeze dryer used in traditional laboratories. It has the advantages of in-situ freeze drying function, box-type closed design, rigorous structure, small size and strong flexibility, etc. It is suitable for life sciences, medicine, Scientific research such as food science, aquatic science, biochemistry, environmental science and archaeology can meet customer needs for freeze-drying process exploration, technology application, etc.
Compared with the traditional pilot freeze dryer of the same freeze drying area, the vacuum freeze dryer is compact and affordable; compared with the traditional laboratory small freeze dryer, it is easy to operate and freeze-dry in situ, avoiding the material drying process. pollution and cumbersome manual operations.
Freeze dryer design features:
1. Good drainage design: 20° tilt angle design, water can be discharged smoothly when melting ice, avoiding residual water spraying during the next operation, and no manual wiping is required, which is not easy to be contaminated.
2. Intelligent PLS control: PLS fully automatic operation controller, large color screen, touch-type human-machine interface, digital display of temperature, vacuum degree, voltage and other data, full record of operations and alarms during the process.
3. Rapid freezing design: Fully automatic control with good freezing efficiency, it can quickly cool down to -80/-50℃ or below within 10 minutes after starting, ensuring that when the sample releases a large amount of water vapor instantly, it can also be quickly frozen without loss of temperature. This produces ice melting.
4. System protection function: It has temperature and vacuum degree self-protection function. It will alarm and generate buzzer when abnormal. If the vacuum degree is abnormal for more than 10 minutes, the vacuum pump will be automatically shut down to avoid failure due to vacuum pump being evacuated for too long.
5. Automatic data recording: in compliance with cGMP design, the conditions during the operation can be traced back and whether any abnormal situation occurs during the operation.
Features:
1. In-situ pre-freeze drying function;
2. Temperature adjustable and controllable production process, different processes can be set according to different materials;
3. Multiple sections can be set, program parameters can be modified during operation, and vacuum drying curves and data can be recorded online;
4. Touch screen, can set the power-on password and display the drying curve;
5. The square tray is not easy to deform, easy to operate and easy to clean;
6. Equipped with an inflation valve, and optional inert gas inflation device;
7. The drying chamber adopts a highly transparent colorless organic glass door, which allows the material changes to be clearly observed during operation;
8. Models LFD-1, LFD-4, LFD-1A and LFD-4A can be equipped with oil-free vacuum pumps to solve the problems of oil change, oil mist and corrosion protection;
9. Models LFD-6, LFD-4, LFD-6A and LFD-4A adopt PLC control system and can be started with one button.
10. The vacuum freeze dryer can use the automatic operation mode. When the cold trap temperature meets the freeze-drying conditions, the vacuum pump starts automatically.
11. The timing function can display the vacuum pump operation time, cumulative operation time, freeze drying time, etc., which is convenient for users to calculate the time to replace the pump oil and calculate the sublimation time.
12. The cold trap is relatively independent from the freeze-drying chamber and the multi-manifold, so the icing condition in the cold trap can be easily observed and ice can be removed in time.
13. Optional cold trap sensor, when the ice volume of the cold trap approaches the maximum ice capacity, the sensor will automatically alarm.
Items that have been freeze-dried are easy to store for a long time. After adding water, they can be restored to their pre-freeze-drying state and maintain their original biochemical properties. For heat-sensitive substances such as antibiotics, vaccines, blood products, enzyme hormones and other biological products, the freeze-drying technology of the vacuum freeze dryer can better demonstrate its superiority.
