Vacuum dryers allow products to be dried at extremely low temperatures, without oxygen and with the possibility to recover the solvent. The dryers can be static, with the product positioned in trays on hot plates. A vacuum group with a solvent condenser reduces the pressure inside the chamber and enables evaporation of the solvent at extremely low temperatures.
The dryers can also be rotary. In this case, the product is loaded inside a rotary drum that has a heating jacket. A vacuum group with a solvent condenser reduces the pressure inside the drum (through one of its shafts) and enables evaporation of the solvent at extremely low temperatures. The drum rotation tumbles the product, thereby constantly refreshing the evaporation surface and increasing the drying speed.
Vacuum dryers can be used for drying a wide variety of products in the fine chemical, chemical-pharmaceutical, cosmetic and food and agricultural industries, such as: medicinal plant extracts, antibiotics, enzymes, crystalline products, colorants, plastic granulated products, food additives, spices and condiments, fruit juices, drying of products that require a low residual humidity content.
For Telstar Drying systems, DryMega A, DryMega V and Hidrocero Rotary Dryers, please click Drying systems.
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