Harvest Right Freeze Dryer Commercial

A few key metrics for the best commercial freeze dryers:

1. Ultimate pressure: 2-3Pa for pharmaceutical freeze dryers and 5-15Pa for food freeze dryers.

2. Vacuuming time: From atmospheric pressure to 10Pa, the medical freeze dryer should be less than or equal to 0.5h, and the food freeze dryer should be less than or equal to 0.75h.

3. Cooling rate: The time for the shelf temperature to drop from 20℃to -40℃ should not exceed 2h.

4. The temperature uniformity and flatness of the board layer: the uniformity and flatness of the board layer temperature have a great influence on the uniformity of product quality. The better the temperature uniformity and flatness, the better the homogeneity of the freeze-dried product quality. Freeze dryer shelf temperature control is available in heater type and intermediate fluid type. The freeze-drying machine shelf using the intermediate fluid control plate layer has good temperature uniformity and flatness. The freeze-drying machine plate layer is a hollow sandwich structure. The cooling and heating of the plate layer are both circulated through the intermediate fluid in the fluid channel inside the plate layer. To achieve, so the temperature of the board layer is uniform. In general, the temperature difference between the layers of the medical freeze dryer should be controlled within ±1.5℃, and the temperature difference inside the plate should be ±1℃, and the food freeze dryer can be appropriately relaxed.

5. Water catching capacity: Should not be less than 10kq/㎡.

6. Noise: The sound pressure noise should be no more than 83dB(A) for small freeze dryers, less than or equal to 85dB(A) for medium ones, and less than or equal to 90dB(A) for large ones.

7. Control system: It should be able to display the working status of the main components: Display the temperature of the shelf and the product, the vacuum degree and the temperature of the water catcher; Temperature and overpressure alarm function.

8. Safety performance: The insulation cathode of the whole machine should be no less than 1MΩ.

Our freeze dryer equipment manufacturers provide advanced, stable, energy-saving and efficient freeze dryer equipment (including the best commercial freeze dryers).

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