Industrial Fans
HVLS High Volume Low Speed Large Ceiling Fans For Industrial Spaces
• Leverage Existing HVAC Systems: move large air masses without creating turbulence – reducing thermal loads, electricity use, and mechanical cooling and heating times – thermostat settings can be adjusted higher in summer and lower in winter to yield significant cost savings – lowers overall maintenance and extends system life expectancies. • Enhance Ventilation Systems: Continuous mixing of incoming fresh air with stale processed air lowers amount of total ventilation - reduce the number of high speed exhaust fans. • Optimize People Comfort: A fans large column of air pushing downward builds a comfortable deep floor jet of air that entrains outward – requires no need for air speed velocities – just 3-5 miles an hour for optimized cooling effect • De-Stratifies Uneven Heat reducing higher cost of heat cycling. • Control Panel Specs: engineered to ensure optimal acceleration, speed, and longevity (Multiple fans can be run off a single control panel). Nema 1 enclosure; Variable Frequency Drive (VFD); Fuse Block Fuses: 12, 15 & 20 amp; Control Switch: FWD/OFF/REV; Disconnect Switch: 20 amp lockable; Input Power: 208V/240V 1Ø, 208V/240V 3Ø, 480V 3Ø

HVLS Six Blade Fan Diameters and Specifications (60 Hz)
Blades: Extruded 6063-Y351 Anodized Aluminum • Hub: Cast Aluminum
Airvolution 24’ 24’ 20’ 20’(70Hz) 18’ 16’ 14’ 12’ 10’ 8’
Displacement CFM (Forward Blowing Down) 376,804 275,694 201,805 237,231 179,015 158,911 128,010 97,695 83,025 53,623
Displacement CFM (Reverse Blowing Up) 263,763 192,986 141,264 166,062 125,311 111,238 89,607 68,387 58,118 37,585
Maximum Effective Area* 20,000 18,000 15,000 18,000 15,000 15,000 8,000 7,000 5,000 4,000
Typical Industrial Spacing Ft** 110 100 95 100 90 90 70 65 60 55
Maximum RPM 54 50 60 85 71 88 104 121 144 206
Power Consumption kW (Avg) 1.65kW .694kW .592kW 1.032kW .648kW .693kW .734kW .605kW .559kW .684kW
Motor Horsepower .2 .1 .1 .1 .5 .1 .1 .1 .1 .1
*Maximum Effective Area determined within a circular area on an unobstructed floor under the fan.
**Typical Industrial Spacing from center to center of range – the more floor congestion, the closer the spacing.
equipment IMG

HVLS Fans: The Most Energy Efficient Fans Available The relationship between speed (rpm), diameter, airfoil shape, and the resultant size and momentum of a fan’s air column yields exponential efficiencies – an air column can sustain movement longer by leveraging its own momentum allowing air to entrain, circulate and reach corner to corner – encompassing circulation diminishes areas of unhealthy air. By operating at very low rpm, torque and wear are minimized and fan mechanical efficiencies are increased for a longer life cycle. Low rpm’s equates to a highly efficient fan using very little power to operate – pennies an hour!

Compare: Thirty one 36” 1hp high speed fans equal the cfm’s of just one 24’ HVLS 1hp fan saving over $20,000/year in electrical cost.
MacroAir Airvolution™
WhisperFoil XL™
-up to 24' diameter
Circulating large air masses seamlessly
  • Summer Cooling
    20,000 sq ft per 24' fan
  • Winter Heat De-Stratification
    forces heat to the floor
  • Forward - Reverse Direction
  • More CFMs - Less Amps
  • Three Year Warranty
  • Made in USA
The inventor of HVLS technology - Walter Boyd, co-founder of MacroAir Technologies, designed the fans for cooling large open spaces featuring maximum performance & energy efficiency - ideal for industrial applications - extremely efficient, quiet, and produces minimal air disruption directly below the fan.

The key operational design is the airfoil shape of the blades with a high aspect ratio like a plane wing - long, narrow and hollow, making it lightweight. The blades are anodized extruded aluminum for long life and easy maintenance. The fan uses a 1hp motor and provides air speeds of 3-7 mph.
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