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Schaefer Ventilation Equipment

Schaefer BD72-208460-3 BigDog Industrial Air Circulation Fans 72 Inch
Schaefer BigDog BD72-208460-3 Industrial 72 Inch Air Circulation Fan - 3 Phase
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Schaefer BD72-208460-3 BigDog Industrial Air Circulation Fans 72 Inch

Schaefer 72 Inch BIGDOG can move a massive amount of air at high speeds.

Typical ceiling fans move lots of air at a low rate of speed which results in minimal cooling. The Schaefer BigDog provides summer cooling that employees need to work safely and more productively, while destratifying (warm air is pushed down from above) in winter to keep employees warm and reduce energy costs.

Misting Control System

Control misting along with your BIGDOG circulation fan by installing the mist control system. Schaefer's MCS will sense ambient humidity & turn off your low pressure mist system as humidity rises to ensure that the floors won't get wet & the air won't get oversaturated.

  • 3 Phase motor
  • Fitted with six fiberglass fully adjustable air deflectors to point airflow where needed
  • Adjustable air pattern velocity and shape with fan orientation & air deflector angle
  • Fiberglass corrosion resistant housing
  • Heavy duty bearing and pulley assembly
  • Maintenance free motor
  • Mounts away from people & equipment
  • Fan delivered fully assembled
  • Air deflectors added in the field
Schaefer BIGDOG Industrial Circulation Fan Provides Over 60,000 CFM For A 200 X 35 Foot Area
Schaefer BIGDOG Features
  • Engineered to deliver over 60,000 CFM air movement & personnel cooling for a 200 x 35 foot area
  • Cools in summer for increased productivity
  • A single BIGDOG fan can replace several smaller air circulation fans
  • Can be utilized with a variable speed drive (50 - 300 RPM) to provide smooth speed adjustments which require as low as 300 Watts power - the best energy efficiency in class for 40 CFM / Watt
  • Extremely quiet operation at even at top speed, allowing normal conversation & comfortable working conditions
  • Rugged fiberglass adjustable air deflectors
  • Fits conveniently in corridors & between fire sprinkler systems
  • Hang with special cable
  • Wall and pole mounts provide maximum airflow where you need it
  • 2 year warranty

Schaefer BIGDOG BD72-208460-3 Specifications

Diameter72 inches

Motor3 HP - 3 Phase
208 / 230 / 460 Volts

48.54 lbf


CFM64,500 / 10,000

RPM300 / 50
Weight375 pounds

Choose Options and Quantity
BIGDOG Controls BDVFD240N1 - Variable Frequency Drive, 240 V, 1 & 3-Phase, NEMA 1 [+$850.00]
BDVFD240N4 - Variable Frequency Drive, 240V, 1 & 3-Phase, NEMA 4 [+$1,000.00]
BDVFD400-3N4FI - Variable Frequency Drive, NEMA 4X, Filtered Input, 400-480V, 3-Phase, 3HP [+$1,050.00]
BDVFD400-1N4FD - Variable Frequency Drive, NEMA 4X, Filtered Input/Disconnect, 400-480V, 3-Phase, 3HP [+$1,050.00]
BDVFD400N1 - Variable Frequency Drive, 400/480V, 3-Phase, NEMA 1 [+$1,150.00]
BDVFD400N4 - Variable Frequency Drive, 400/480V, 3-Phase, NEMA 4 [+$1,200.00]
BIGDOG Mounts BDCABLEKIT15 - Cable Hanging Kit (4 x 15' cables & hardware) [+$275.00]
BDSAFETYCABLE - Safety cables BIGDOG post or Wall Mounting [+$75.00]
BDMNTWALL30DEG - Mount 30 Degree Angle on Wall/Column Bracket [+$1,250.00]
BDMNTWALL90DEG - Mount Horizontal on Wall/Column Bracket [+$1,200.00]
BDMNTPOLE30DEG - Mount 30 Degree Angle on 16' Pole with Base [+$1,600.00]
BDMNTPOLE90DEG - Mount Horizontal on 16' Pole with Base [+$1,600.00]
BDMNTPOLE30-LP - Mount 30 Degree Angle Less Pole (need 3-1/2" Sched 40 Galv.) with Base [+$800.00]
BDMNTPOLE90-LP - Pole Mount, Horizontal, 16', without Pole [+$800.00]
BIGDOG Misting BDMISTKIT - Low Pressure Misting Kit [+$750.00]
BD-CFK - Cartridge Filter Kit (for use with BDMISTKIT) [+$75.00]
BIGDOG Guard BD72G - Non-OSHA Inlet Guard [+$175.00]
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