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Continuous Fluid-Beds and Fluid Bed Systems


Applied Chemical Technology (ACT) Continuous Fluid Beds offer non-stop production capabilities for a vast array of process applications. Our versatile range of fluid-bed sizes can meet any need, from research and development operations on the bench or pilot plant scale to full-scale production plants. Bring the unique advantages of ACT fluid-bed technology to your process with a Continuous Fluid Bed from ACT.

Materials of Construction: Carbon Steel (Standard), Stainless Steel or Specialty Alloys (Optional)
Sizes: ¼ ft2 to 1000 ft2
Capacities: 4 lbs/hr to 50 tons/hr
Upper Temperature Limit: 1400° F

Process Applications for ACT's Continuous Fluid-Beds

  • Coating
  • Drying
  • Reacting
  • Granulating
  • Agglomerating
  • Spray Drying
  • Heating
  • Conveying
  • Impregnating
  • Prilling
  • Sizing
  • Cooling

A Continuous Fluid Bed with Multiple Zones

Continuous Fluid Bed with Zones

Standard Features and Add-On Options for ACT Continuous Fluid Beds


ACT maintains a fully equipped laboratory and pilot plant for testing to determine the best system for your needs. We also offer lease units and technical assistance for testing operations at your location.

Standard Features for ACT Continuous Fluid Beds (All Models)

  • ACT's exclusive air distribution plenum for even fluidization
  • Replaceable distributor plate
    • Standard plate punched to your materials requirement
    • Wide range of open areas
  • Adjustable material retention drum
    • 1" height increments, up to 12" total bed depth
  • Differential pressure gauge
  • Multi-functional removable access door
    • View port
    • Sample port (atmospheric operation only)
  • Window at discharge end
  • Bolted plenum access door
  • Wash out drain
  • End air feed
  • Pressure ±20" water column
  • Handles material up to 90 lb/ft² bulk density
  • Up to 250° F operating temperature standard
  • Configurable under positive, negative or atmospheric pressures
  • Carbon steel construction, primed and painted
  • Mounting lugs

Optional Features and Accessories

  • High temperature gaskets & seals for operating temperatures up to 700°F
  • Feed distribution system - Even Dispersion Across Screen
    • Optional air spreaders
  • Alternate distributor plates-V-wire plated, Porous metal, Directional, Specialty
  • Custom internals
  • Wurster spouting tubes
  • Sampling ports - Self-sealing or atmospheric
  • Additional view ports and access doors
  • Quick opening plenum access door
  • External actuated dump-Manual or automatic
  • Steam cleaners
  • Side or bottom air feed
  • Zone plenum for multiple air temperature operation
  • Unit available without plenum for negative pressure operation
  • Air flow and temperature instrumentation controls
  • Automation with full integration into your process operations
  • Complete spray system accessories
    • Pumps, filters, nozzles, piping, etc.
    • Top, bottom, or side mounted
  • Explosion proof rating
  • Steam jacketed bed chamber
  • Custom internal finishing/coating
  • Structural steel support
  • Specialty access platform
  • Stainless steel construction
  • Custom Parts

Custom Fluid Bed Engineering


ACT maintains a full staff of chemical, mechanical, and electrical engineers and designers who can custom design your fluid bed for an any range of process requirements, from extreme temperature operations to hazardous materials processing.

Your custom modifications could include:

  • Design for material over 90 lb/ft² bulk density
  • Design for high temperature operations
    • 1400° F and above
  • Design for cryogenic operations
  • Custom construction materials such as Hastelloy©, Iconel© and other exotic metals
  • Custom dimensions
  • Custom shape
  • Flared disengaging for low profile units
  • Complete systems including blowers, ducts, heaters/coolers, condensers, mist eliminators, inert gas operation, recirculation systems, emissions controls, etc...

Continuous Fluid-Bed Diagram Continuous Fluid-Bed Diagram