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   Static Mixer
Helical Static Mixer
HSM High Shear Mixer
Helical Static Mixer Rods
Wafer Type Static Mixer
Fin Type Static Mixer
Gas Mixer
   Heat Exchanger
SM Type Heat Exchanger
   Desuperheater
Venturi Type Desuperheater
   Ejector Air/Steam/Liquid
Steam, Sump, Liquid, Air Ejector
   Eductor/Jet Mixer/Venturi
Jet Mixing Eductor
   Thermal Dryer
Buflovak Atmospheric Single Drum Dryer
Buflovak Atmospheric Double Drum Dryer
Buflovak Vacuum Double Drum Dryer
Buflovak Vacuum Rotary Dryer
Buflovak Vacuum Pan and Kettle Dryers
Buflovak Vacuum Shelf Dryer
Buflovak Atmospheric Cooling Drum Flaker
   Evaporation and Distillation
Buflovak Falling Film Evaporator
Buflovak Rising Falling Film Evaporator
Buflovak Forced Circulation Evaporator
Buflovak Distillation System
   Powder Blending
Patterson Kelley Powder Blending

Buflovak Vacuum Rotary Dryer




Manufactured by Hebeler Process Solutions, USA

Vacuum Rotary / Paddle Dryers provide fast, uniform, low temperature drying of press cake, filter cake, and slurry type materials requiring agitation and recovery of solvents during drying. The batch drying time depends on the composition, nature and amount of solvent present in the wet product.

It consists of a stationary horizontal jacketed cylinder (vacuum chamber) designed for vacuum or pressure operation under controlled heat with an internal revolving agitator, which can be heated to further shorten the drying time.


The custom-select agitator mixes and circulates the product in contact with the heated surfaces to achieve uniform drying with minimum power consumption, tumbling, and dusting.

The batch operation of the vacuum rotary dryer is simplified by automatically loading (charging) the wet product into the top of the jacket cylinder with the agitator rotating for uniform distribution and complete dry product discharge through a pneumatically operated underside discharge door.


The jacketed cylinder and agitator 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.

Due to hundreds of various types of products and demands of inducing and controlling a vacuum environment, almost all aspects of a vacuum rotary dryer’s mechanical design, operating components and ancillary support equipment can be customized to meet each individual’s process design application needs.

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