Chemical Machinery

Overview

We are sole export agent for Jiangyin professional Freeze Dryer (lyophilizer) manufacturer and who has more than 30 years experience in this field.
We have high-ranking specialties technical personnel for making diversified Freeze Dryer. We pure-hearted supply diversified technical service for consumer. The service including: specialties technical consultation of Freeze Dryer, asepsis production method, the techniques of making freeze dry food, the design and position of asepsis depurative workshop, the training of high-ranking personnel for manipulating Freeze Dryer and the consultation of GMP inspection and acceptance.
With technical support by top specialists from local university and institute, and acquiring testing freeze dryer in our laboratory, we are willing to help our customer to solve special problems.

Working Principle

Freeze Drying, or lyophilization as it is referred to in the Pharmaceutical and Diagnostic Industries, is a dehydration technique, which enables liquid or slurry products, which have previously been frozen to be dried under a vacuum

Operation instruction

Generally, the Freeze Drying, or Lyophilization cycle is divided in three phases:
An initial freezing process, carried out in such a way that:

?The product exhibits the desired crystalline structure.
?The product is frozen below its eutectic temperature.
A primary drying (sublimation) phase during which:

?The partial pressure of the vapor surrounding the product must be lower than the pressure of the vapor from the ice, at the same temperature.
?The energy supplied in the form of heat must remain lower than the product& acute;s eutectic temperature (the highest allowable product temperature during the conditions of sublimation.)
A secondary drying aimed at eliminating the final traces of water which remain due
to absorption, and where:

?The partial pressure of the vapor rising from the product will be at its lowest levels.