Dryer & Flaker Testing

Featured Product from Hebeler Process Solutions

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Dryer/Flaker Testing

  • 6" x 8" atmospheric and vacuum, single double and twin drum dryers, equipped with cast iron and chrome plated drums
  • 24" x 24" single, double and twin atmospheric drum dryers, equipped with cast iron and chrome plated drums. Stainless steel feed accessories available.
  • 12" x 18" vacuum double drum dryer (with stainless steel enclosure/hopper).
  • 24" x 42" single drum dryer with chrome plated drums and four application rolls.
  • Stainless steel 2' diameter by 4' long jacketed vacuum rotary dryer complete with dry dust collector.
  • Small laboratory size A-1 vacuum shelf dryer with cast iron casing and stainless steel product tray.

  • 3' diameter pan dryer (crystallizer) with stainless steel construction that may be used as a pan filter-dryer.


  • 6" x 8" laboratory size flakers; single and double; with cast iron or chrome plated smooth drums and stainless steel and cast iron grooved drums. Applicator or agitator roll available.

  • 24" x 24" single drum flaker with independent temperature and speed control on the drum and applicator or agitator roll. Cast iron, chrome plated, smooth stainless steel drum and cast iron grooved drums available.


  • One 1-Gallon stainless steel kettle with double motion agitator and electric heating mantle, for high temperature operation.


Cooling Drum Flakers
Cooling Drum Flakers are the most compact and efficient method to cool an incoming molten product to a solid flaked product utilizing thin film continuous cooling via conductive heat transfer. Cooling Drum Flakers are utilized in food, chemical, environmental, and pharmaceutical applications for products such as acetic acid, calcium chloride, caustic soda, edible oils, fatty acids, polyethylene glycol, steric acid, waxes and zinc stearate.

Consisting of a rotating drum with a cooling liquid sprayed on the inside and a product specific application method for applying the molten product to the drum surface, standard applications methods are a dip feed pan usually used for low viscosity products, applicator roll usually used for heat sensitive products or agitator roll usually used for super-cooling products. The solidified product is 100% removed from the drum surface by ridged knife bar assembly.

The cooling drum requires precision construction and machining to assure uniform efficient heat transfer and eliminate production fines. Standard drum materials of construction can range from cast-iron, to hastelloy and are built to comply with ASME and PED Pressure Codes or other national design and construction codes.

Due to current environmental and health safety requirements, cooling drum flakers are usually enclosed in a number of specially designed enclosures specifically suited for dust containment or toxic vapor containment and/or provide an inert gas operating environment for oxygen-sensitive products.

Due to the hundreds of various types of products and operating environments, almost all aspects of a drum flaker's mechanical design, operating components and ancillary equipment are customizable to meet individual application needs.

The vast majority of Buflovak cooling drum flakers are installed on a production-guaranteed basis because the specific process (chemistry) design was tested and then pilot-run in the Buflovak laboratory, which provided reliable scale-up data for correct dryer configuration and drum surface area to meet each individual process design application.

Thermal Drying & Solidification Solutions

Buflovak / P-K
At Buflovak / P-K Process, we specialize in innovative, technology–driven solutions for the food, chemical, pharmaceutical, waste treatment, metals and glass industries. We are one of only a few worldwide offering product research and testing, the design and engineering of process equipment and systems, and manufacturing of complex one-of-a-kind and first-of-a-kind equipment and systems all at a single location. Buflovak LLC consists of specialized operating groups: Buflovak Rotating and Vacuum Thermal Process Equipment Group; Buflovak Separation Technology and Applied Equipment Group; and P-K Process Equipment.