The Guedu vertical dryers from De Dietrich Process System adds an important benefit for drying of powders in process industries, cosmetics and food. The vertical dryer is unlike hot air dryers and tray dryers. The powder is stirred under vacuum, that allows an improvement of the drying time by a factor 2 to 10 compared to tray dryers, and a total cycle time reduction by a similar ratio
(by reducing the necessary handling).
In fact, the vacuum drying technology allows savings due to the total cycle time reduction (a single pan dryer can replace several tray dryers) and also savings from the improved heat transfer during drying (reducing utilities costs). The mechanical mixing during drying improves product homogeneity. Therefore, at the end of the cycle, the product comes out perfect evenly dried, with residual moistures below 0.1% where required.
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