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Your Location: Home >> News >> Technical support >> How to choose the experimental lyophilizer?

How to choose the experimental lyophilizer?

Release Date: 2019/12/27 19:03:12 .
Browse: 1018

When choosing an experimental lyophilizer model, we usually consider paying attention to the following parameters:
1. Freeze-drying area of ​​experimental freeze dryer
According to the needs of their own experiments, the user determines how much lyophilizer is needed. Songyuan experimental lyophilizers are available in 0.12 square, 0.18 square, 0.27 square, and 0.3 square; at the same time, it can also be customized according to customer needs.
2. Cold trap temperature of experimental freeze dryer
The cold trap is a device that captures moisture during the freeze-drying process. The Songyuan experimental freeze-dryer has two temperatures -50 ℃ and -80 ℃.
3. Extreme vacuum degree of experimental freeze dryer
The ultimate vacuum degree is reflected in the suction efficiency and leakage of the vacuum pump of the freeze dryer. The ultimate vacuum degree of experimental freeze dryer is usually controlled above 15Pa.
4. Cooling rate of experimental freeze dryer
The cooling rate represents the cooling capacity of the refrigeration system. Under no-load conditions, the temperature of the cold trap should reach the minimum temperature specified in the index within 1 hour. For example, for an experimental lyophilizer with a cold trap temperature ≤ -50 ° C, the machine starts timing when the refrigeration is turned on, and the time for the cold trap temperature to reach -50 ° C should not be greater than 1 hour.
 

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