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Through Air Dryers & Ovens

Through-air dryers remove water or solvents from air-permeable products by uniformly transporting heated air through the entire thickness of the product. This technique creates exceptionally high heat transfer rates. Through-air design is ideal for rapid drying of porous products such as nonwovens, fabrics and fibers. Through-air is also a good choice for curing, heatsetting or thermal bonding similar products.

Dryer Design Considerations

  • Horizontal
  • Fixed or Rotating Product Support Rolls
  • Self-supported Product or Conveyorized
  • Deckles
  • Double Wall Insulated Steel Construction
  • Prepackaged, Skid Mounted Heating Apparatus
  • Clamshell Access, Screw Jack Access or Access Doors
  • Product Threading, Motorized or Manual
  • Constant or Variable Volume Control
  • Process Temperature Control
  • CE, CSA, CUL, FM, IRI, UL Approved Designs

 

System Illustrations

Dry and Thermal Bond Nonwovens
These through-air systems dry and thermal bond nonwovens.

  • Bonding Oven Length: 9’ (2.7 m)
  • Heat Source: Electric
  • Bonding Air Temperature: 700°F (370°C)
  • Line Speed Range: 1 - 40 fpm (0.3 - 12 mpm)
  • Product Support: Conveyor
  • Product Width: 12” (30 cm)

 

 

 

 

Thermal Bond Particles
Thermal bond heat activated particles prior to lamination. This system integrated infrared energy to improve overall performance. The oven features full access and product conveyor support.

  • Bonding Oven Length: 9’ (2.7 m)
  • Heat Source: Electric
  • Bonding Air Temperature: Line Speed Range: 3 - 30 fpm (1 - 9 mpm)
  • Product Support: Conveyor
  • Product Width: 26” (10 cm)

 

 

Dry Carbon Fibers
Continuous processing of carbon fiber tows. This system was delivered prepackaged and assembled.

  • Dryer Length: 8’ (2.4 m)
  • Heat Source: Electric
  • Air Temperature: 338°F (170°C)
  • Line Speed: 30 fpm (9 mpm)
  • Product Support: Externally supported
  • Product Width: 142” (56 cm)

 

 

Preheat Sheets
Preheat synthetic and natural fiber blended sheets prior to thermal forming.

  • Heat Source: Natural Gas
  • Air Temperature: 450°F (232°C)
  • Product Support: Open Mesh Tray
  • Product Size: 64” x 60” (25 cm x 24 cm)