Used Dryers and Industrial Process Drying Equipment

Manufacturer / Brands typically in stock:

• Vacuum Dryers: Batch dryers using a vacuum to dry wet products where tumblers, paddle and ribbon agitators or pans move the product. You'll find used vacuum dryers in these categories: double cone, twin shell, rotary vacuum (aka vacuum rotary) and pan dryers.
• Vacuum Shelf Dryers: vacuum dryers where product is dried on trays sitting on heated shelves. Typically rated for heating only, do not have movable shelves and are measured by the shelves' surface area.
• Freeze Dryers (Lyophilizers): Low temperature batch dryers, identical to shelf dryers, except they use low temperatures and shelves may be moveable. Common in pharmaceutical production. Measured by the shelves' surface area.

• Conveyor Dryers: use conveyors to move product through drying chamber or trough. Some are heated or use vacuum conditions. You'll find used conveyor dryers in these sub-group categories:
  • Holoflite, hollow screw, thermal Screw, thermal disc dryers - use troughs, measured by trough's dimensions or number of screws.
  • conveyor belt dryers - product moves through heated chamber on continuous horizontal belt. Measured by chamber diameter and belt length.
  • Porcupine Dryers: Specially designed conveyor type with trough and internal screw conveyor. Some are jacketed and rated for internal pressure.
  • Flash Dryers / pneumatic conveyor dryers: conveys product through heat source and pulverizers before discharge into an air classifier. Measured by dryer's air flow in CFM.
• Spray Dryers: atomizes liquids into fine spray which dries into fine particles as it floats down through heated chamber, whose diameter is the key measurement. Popular for instant milk, instant tea and pigments.
• Drum Dryers: heated drum or set of 2 drums where the product is dried on the outside of drum as it rotates toward blade that scrapes it off. Used for milk drying and cereals. Measured by the diameter and length of the drum.
• Drum Flakers - Similar to drum dryers except use a cooling process to flake the product being dried.
• Belt Flakers - Belt flakers are conveyor belt dryers that also use cooling where the belt is cooled to dry the product. It hardens and flakes off.
• Thin Film Dryers: used to convert heat-sensitive liquids, sludges, slurries and pastes into free-flowing solids. Can be horizontal or vertical, some operate under vacuum and are usually measured by the drying surface area.
• Wyssmont Dryers: have cylindrical housing that contains stack of trays that rotates while hot air blows through the housing. The product is fed at the top and then scraped onto the next tray below continually moving down stack.
• Continuous Rotary Dryers: Some use Hot Air or direct flame as heat source while others use steam heated tubes. Have large and long cylindrical tubes that dry the product as it tumbles through the rotating tube. Measured by diameter and length of the tube.