SQI Centrifugal Fan

Chicago Blower's SQI is a high performance, trouble free fan proven in a multitude of industrial applications. With its radial wheel and square housing design, the SQI is efficient, economical and versatile. It is also quickly available through Chicago's Stock Fan program. "Packaged" fans, those furnished with motor, V-belt drive, belt guard and other options, are factory aligned, run tested and shipped ready to install. By eliminating jobsite assembly, the packaged SQI fan can substantially reduce overall installation cost.


The SQI wheel with radial blades is designed to handle various types of materials, long fibers or other stringy material as well as sticky, heavy or abrasive dust airstreams. Typical applications include conveying, induced draft, industrial ovens, and similar high temperature installations to 650F. For greater safety in explosive environments, spark resistant construction is offered. Lint-free construction, in which housing hardware is reversed to limit obstructions in the airstream, minimizes lint build-up. The versatile SQI is furnished in eight sizes in Arrangements 1, 9, 9H.

Operating range

Maximum CFM 9,000
Maximum Static Pressure 18" wg
Maximum Temperature 650 degree Celcius
Fan Sizes 5 to 17


  • Chicago LS wheel
  • Steep pressure characteristics
  • Rugged steel housing
  • Removable bearing brackets
  • Adjustable motor bases
  • Chicago WF wheel
  • Adjustable discharge positions
  • Flanged outlet
  • Precision shafts
  • Four-way gusset


  • Punched flanged inlet
  • Housing drain
  • Inlet screen
  • Shaft cooler and guard
  • Type "B" spark resistant construction
  • Lint free construction
  • Shaft seal
  • Insulation studs
  • Companion flanges
  • Arrangement 8
  • Corten wheel construction
  • Punched flanged outlet
  • Cleanout door
  • Mounted belt guard
  • Shaft and bearing guard
  • Type "C" spark resistant construction
  • Extended grease tube fittings
  • A/9 Mount motor and drive
  • Wool-Fiber wheels
  • Split pillow block (H) bearings
  • Box on inlet box

Alternate Products

Similar Products SQB Centrifugal
  Industrial Centrifugal
  Design 38 Cast Aluminum Pressure Blower


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