Fully Automatic Drying and Cooling with a new condensation drying system

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HARTER GmbH

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Service: Drying Tests

From the very start of the business Harter has run an in-house pilot plant station to test customer products for response to drying. This is both part of the services offered and a reasonable method for determining the parameters for successful drying such as temperature, drying time, humidity, airflow rate and air speed. In the case of Takeda, tests were run using a Takeda rack and cassettes holding vials of multiple sizes ranging from 5 to 100 ml.

Challenging Requirements

This setup was more challenging than actual production conditions where batches always include same-size vials. Takeda’s rack was inserted in a lab drying cabinet and connected to the Airgenex dehumidification module. The customer required his assortment of vials to be dried and cooled within 60 min.

The time available for drying in actual production was 45 minutes maximum. For the purpose of these tests, the vials were heated to 70 °C, immersed in hot water and subsequently dried and then cooled for 30 minutes. This process produced dry vials with a final temperature of 48 °C. Thus, Takeda’s requirements were more than fulfilled. There was no more obstacle to realising this innovation project.

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