1、 Working principle

The drying principle of vacuum freeze dryer is mainly based on the three state change law of substances. When a substance reaches a certain level at low temperatures, its molecular motion slows down and forms a solid state. In a vacuum environment, the influence of external pressure on water molecules decreases, and the intermolecular distance increases, allowing water molecules to sublime directly from the solid state to the gas state, achieving the purpose of drying. This drying method can preserve the original nutritional content and color of the material, while avoiding the oxidation and deterioration of some heat sensitive substances.

2、 Application scope

Vacuum freeze dryers are suitable for fields such as medicine, pharmaceuticals, biological research, chemical engineering, and food. Items that have undergone freeze-drying treatment are easy to store for a long time, and can be restored to their pre freeze-drying state and maintain their original biochemical characteristics after adding water.

3、 Product Description

BIONOON-22plus vacuum freeze dryer is mainly used in fields such as medicine, pharmaceuticals, biological research, chemical engineering, and food. Items that have undergone freeze-drying treatment are easy to store for a long time, and can be restored to their pre freeze-drying state and maintain their original biochemical characteristics after adding water. BIONOON-22plus freeze dryer is suitable for laboratory use or small-scale production, and can meet the requirements of most laboratory routine freeze drying.

4、 Characteristics of BIONOON-22plus vacuum freeze dryer

1. Equipped with a 7-inch LCD touch screen and independently developed BIONOON operating system, the touch screen is sensitive;

2. High degree of automation, easy operation, one click start stop, automatic frost and automatic drainage;

3. Power off protection function, automatically releases vacuum after power off, prevents vacuum pump oil from reverse suction, and protects sample safety;

4. The imported pressure reducing valve automatically releases vacuum and can be connected to a filter to ensure the cleanliness of the sample;

5. Built in cold trap vacuum protection system, which can set protection parameters to extend the service life of the vacuum system;

6. Standard permission management to ensure the security of experimental data;

7. Intelligent data recording system, which can query historical curves and records, and realize data recording USB or WIFI export;

8. Upgradeable system maintenance reminder function: vacuum pump oil change reminder, radiator cleaning reminder, instrument running time recording, voltage offset reminder, etc;

9. Adopting PLC control system, system customization service can be provided, and software system can be upgraded;

10. Using WiFi and IoT technology, downloading a mobile app for remote real-time monitoring and device operation (optional);

11. Batch instrument management function: capable of cloud storage of data for multiple instruments (optional);

12. Freeze drying endpoint automatic discrimination system, convenient to grasp the freeze-drying situation at any time (optional).

5、 Technical parameters:
·Freeze dried area: 0.14 square meters
·Material tray size: Ф240mm
·Number of material trays: 3

·Material tray spacing: 70mm
·Cold trap temperature: ≤ -70 ℃ (no load), optional ≤ -90 ℃ (no load)

Cold trap depth: 120mm

Cold trap diameter: 300mm
·Water catching capacity: 5kg/24h
·Vacuum pumping rate: ≥ 120L/min
·Installed power: 1500W

·Vacuum pump pumping rate ≥ 38L/min, ultimate vacuum: ≤ 2*10^-3mbar

High transparency organic glass drying chamber, height 470mm Top cover separated freeze-drying chamber.

Pirani vacuum sensor, vacuum display range: 0.0001mbar~1000mbar
·Electromagnetic control accuracy: ≤ 0.001mbar, with temperature compensation function.