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Buflovak Vacuum Shelf Dryer




Manufactured by Hebeler Process Solutions, USA

Vacuum Shelf Dryers are specified for products requiring uniform, low-temperature drying with no agitation or compression. Among those products are pharmaceuticals, nutraceuticals, vitamin extracts, specialty food items, fine chemicals and granular products.

Delicate, heat-sensitive materials are dried safely at extremely low drying temperatures. Operating under vacuum, the product is protected from oxidation and atmospheric contamination and released solvents are fully recovered.

Consisting of a square or round vacuum chamber with customized fixed internal shelves; the wet material to be dried is loaded into pans or trays and manually placed on the shelves. The top part of each shelf is flat with a coiled jacket on the underside to circulate steam or liquid heating medium to achieve the desired operating temperature.


The chamber and/or shelves are designed to meet the operating pressures and material compatibility requirements for each individual application and are built to comply with ASME, PED Pressure Codes or other national design and construction codes.

The overall dimension of each vacuum chamber is driven by the required shelf surface area for drying. The shelf size, spacing between each shelf, and selected chamber geometry (square or round) will determine the overall chamber size.

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