Air Foil Fans and Services

By: Robinson Fans  09-12-2011
Keywords: Fans, field service, air pollution

Air foil fans are designed, engineered and tested for airstreams requiring high efficiency and quiet operation. They are used extensively for continuous service to 850°F in forced and induced draft applications in the metals, chemical, power generation, paper, rock products, glass, resource recovery, incineration and other industries throughout the world.

Designed for Variable Speed Applications

Robinson’s AF Series fans are also designed for use with variable-speed motors. The additional design considerations and requirements of such applications are taken into account during fan development and construction. For more information, call your Robinson representative or the Zelienople Headquarters.

Induced Draft and Forced Draft Service

  • Heat Recovery
  • Incineration
  • Air Pollution
  • Waste-to-Energy
  • Boiler Operations
  • Fluidized Bed
  • Combustion Air
  • Process Air

Research, Engineering and Testing

Like all Robinson products, AF fans are built with quality materials by skilled, experienced craftsmen for reliability and longevity. This level of quality is a result of ongoing research and testing in Robinson’s own lab facilities. Robinson builds prototype fans and tests them for air performance and sound. Finite element stress analysis, computational fluid dynamics (CFD), and resonant frequency testing are other procedures used regularly to help Robinson engineers “design in” optimum reliability and performance. This, together with extensive field experience, provides Robinson with the information and expertise to engineer fans that satisfy the requirements of individual applications and service conditions.

Performance Capabilities and Features

Robinson AF fans are custom engineered and built to accommodate capacities to over one million cfm and pressure ranges through 90 inches static pressure. Robinson builds AF wheels to 180 inches diameter, custom engineers single and double-inlet arrangements and, where applicable, constructs units of special alloy materials.

Quality Assurance

Robinson’s experienced quality control department with in-house expertise in nondestructive testing includes:

  • Magnetic particle inspection
  • Ultrasonic testing
  • Dye-penetrant testing
  • Radiographic (X-ray) testing
  • Vibrational resonance testing and modal analysis
  • Dynamic strain gauge testing
  • Computer finite element stress analysis
  • Computational Fluid Dynamics (CFD)

Fan Repair Services - at the factory or in the field

Robinson airfoil fans are backed by excellent field service and convenient repair/rebuild centers. The Robinson network is equipped to repair and service air-moving equipment of any type, by any manufacturer.

Robinson repair and rebuild services are cost effective and can provide years of additional service from even the most damaged or out-of-date equipment. Fans ravaged by industrial gases, dust, chemicals or other materials can be restored and improved. Robinson upgrades can transform inefficient fans into high-efficiency equipment that continues to save you money in operational expenses.

To find out how we can add years to the life of your fans, send for Repair Bulletin 553 . Or call our 24-hour hotline for immediate service.

Keywords: air pollution, Combustion Air, Computational Fluid Dynamics, Fan repair, Fans, field service, Fluidized Bed, Fluidized Bed Combustion, Frequency Testing, Pressure Ranges, Strain Gauge, Stress Analysis,

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Backward Curve Fans, Service | BC Fans

BC Series fans from Robinson are currently in operation in cement, power, coal, lime and paper facilities throughout the U.S. and the world. Finite element stress analysis and resonant frequency testing are utilized to engineer fans that are dependable for optimum performance. BC fans are engineered and built to accommodate capacities to one million cfm and pressure ranges to 120inches water pressure.


Backwardly Inclined Industrial Fan | Type J

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Robinson Service | Industrial Fan Repair, Rebuild, Maintenance

The Robinson Preventative Service Program is our newest offering providing contracted prescheduled maintenance on your fan or fans to minimize down time and increase your industrial air moving equipment’s life. Robinson has a dedicated group of field service technicians available to be dispatched to your location for installation, erection, commissioning, start-up assistance, inspection or testing.


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The Robinson reputation for unique and superbly designed air-moving equipment is well demonstrated by its experience in building special alloy axial flow fans for continuous operation at high temperatures. Utilizing years of experience in building high-temperature fan equipment, Robinson is also involved in satisfying customer requirements in the area of fan repair and rebuilding.