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Impeller type


High Efficiency Airfoil Fan


The HAF High Efficiency Airfoil Fan is designed for applications with clean air and high pressure. Typical applications include forced draft on fluid boilers, dryers, solvent recovery systems, moisture blow-off, product cooling and recirculation systems.

The HAF is built with a heavy-gauge, all welded, high efficiency, non-overloading airfoil impeller, and is provided on all sizes and arrangements.

Sizes (impeller diameters)

  • 25 to 82 inches (635 mm to 2,085 mm)


  • Airflow to 160,000 CFM (271,800 m3/hour)
  • Static pressure to 50 inches w.g. (12,430 Pa)

    Class 30
  • Suitable to 23,000 FPM tip speed
  • Pressure to 30 inches w.g.(7,460 Pa)
    Class 40
  • Suitable to 27,800 FPM tip speed
  • Pressure to 40 inches w.g. (9,950 Pa)

    Class 50
  • Suitable to 29,700 FPM tip speed
  • Pressure to 50 inches w.g. (12,430 Pa)

Product Catalog

Installation manual

Link to Video Library

  • How To Videos

    Inertia Base Installation, Rotor Removal & Installation, Sheave Installation, Unitary Base Installation, Impeller Removal & Installation, Piezometer Ring Installation