How to maintain freeze dryer lyophilizers?

How to maintain freeze dryer lyophilizers?

Lubricate oil replacement:   Regular replace vacuum pump oil. First time: 500hrs running. Successive: every 3000hrs.   Regular replace compressor oil. For semi-hermetic compressors. First time: 2000hrs. Successive: every 10000hrs.   Remarks: The labels on vacuum pumps and compressors have guidance of the replacement cycle. Operator need do daily, weekly…
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Condenser temperature, the colder the better?

Condenser temperature, the colder the better?

  Not always.   Condenser temperature 10C to 15C colder than sample freezing point is ok. A colder condenser will not speed up the lyophilization, but it will consume more energy, add freeze dry system cost and make your freeze dry system complex.   In another aspect, proper sized condenser…
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Can lyophilizers continue working?

Can lyophilizers continue working?

Sure. Lyophilization process may take several hours to several days, during the period, lyophilizers will nonstop working till drying finish.   The operator needs do regularly maintenance(daily, weekly, monthly and annually) enable the plant stable and high performance working. For example: check parts wear condition, replace it if necessary; compressor…
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Is it worth to buy a lyophilizer?

Is it worth to buy a lyophilizer?

Depends on your product and purpose.   Freeze dryers are no longer prohibitively expensive but are still not cheap due to the cost of machine and running cost.   Freeze dryers may be worth the prices for those who want lightweight, long-term product storage with minimal degradation in nutrition and…
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