Fans

Perfomance, Dependabilty, and Acceptance!

With over 45 years of manufacturing experience Chief provides grain aeration systems to fit your specific needs.  Caldwell fans are designed to provide high performance, dependable service and quality acceptance throughout the world. Safe, reliable and attractive, Caldwell fans feature:

  • centrifugal fanGalvanized housings
  • High quality brand name motors
  • 230, 460, or 575 volt 60 hz, and 380 volt 50 hz applications
  • CSA approved, PAMI tested
  • Meet OSHA standards

axial fanAXIAL FANS

Caldwell axial fans are designed for high performance, low static pressure aeration systems with shallow grain depths.  Caldwell axial fans range in diameters from 12" - 28" (30.48cm - 71.12cm) to fit most applications.

  • 3450 RPM operation
  • Single and 3-phase TEAO motors from .75 HP to 12.5 HP
  • Heavy gauge galvanized housing built to last

centrifugal fanCENTRIFUGAL FANS

Caldwell centrifugal fans are designed for high performance aeration systems with medium static pressures and deeper grain depths.  Designed for farm or commercial use, centrifugal fans operate quietly and allow for easy field upgrades with heaters.

  • Air delivery up to 24" Static Pressure for deep grain applications
  • 1750 RPM / 3500 RPM @ 60 hz and 1450 RPM / 2900 RPM @ 50 hz
  • Wheels from 15" (38.1cm) to 40" (91.44cm) diameter @ 50 hz
  • 3 HP to 100 HP
  • Single and 3-phase TEFC motors, PTO units available
  • 230 volt models are pre-wired for heaters

 

Inline Centrifugal FanINLINE CENTRIFUGAL FANS

Caldwell inline centrifugal fans are designed for aeration systems with medium to high static pressures and deeper grain depths.  Compact and quiet, Caldwell inline fans allow for easy field upgrades with low temperature heaters.

  • Heavy gauge galvanized housings from 14" (35.56cm) to 28" (71.12cm)
  • Wheels from 10" (25.40cm) to 20" (50.80cm)
  • 1 HP to 15 HP
  • Single and 3-phase ODP motors

Configurations

Axial Air Flow Ratings (CFM) based upon Static Pressure (IN)
Centrifugal (1750 RPM) Air Flow Ratings (CFM) based upon Static Pressure (IN)
Centrifugal (3500 RPM) Air Flow Ratings (CFM) based upon Static Pressure (IN)
Centrifugal (3500 RPM) UHP Air Flow Ratings (CFM) based upon Static Pressure (IN)
In-Line Centrifugal (3500 RPM) Air Flow Ratings (CFM) based upon Static Pressure (IN)