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Industrial Airfoil Fans (IAF)
The Industrial Airfoil Fan (IAF) is a high pressure centrifugal fan that is recognized for its heavy duty construction. Housings are strongly braced to resist high pressure movement. Shafts and bearings are sized for belt drive duty and provide years of uninterrupted life. Split pillow block roller bearings are standard on all IAF fans. Wheels are dynamically balanced for smoother running. Deep spun inlet cones guide the air into the wheel and over its hollow airfoil shaped blades, providing maximum efficiency and minimum sound levels. Static efficiencies exceed 80%, reducing the energy needed to move each cubic foot of air.
Product Bulletin: IAF
Operation & Maintenance Manual : Heavy Duty Fans
Industrial Airfoil Fan Applications
The IAF is a Chicago Industrial Airfoil Fan with proven performance and proven reliability through twenty years and hundreds of installations. Engineers and users enthusiastically specify the IAF for many high pressure applications, such as supply air, combustion air, product cooling and drying.
Fan Options
  • Split housing
  • Access door
  • Bolt-on inlet box
  • Drain
  • Inlet volume control
  • Inlet screen
  • Shaft guard
  • Shaft cooler and guard
  • Inlet sleeve
  • Flanged inlet
  • Shaft seal
  • D/6105 single surface backward curved bladed wheel
  • Pre-spin inlet box damper
  • Mounted belt guard
  • Streamlined inlet flanged outlet
  • Welded steel housing
  • Oversized shaft and bearings
  • Belt drive horsepowers to over 600
  • Sizes: 2700 to 6600
  • Volumes to 170,000 CFM
  • Pressures to 40” wg
  • Temperatures to 800°F
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