Regal Rexnord
Axial Fans
Regal Rexnord axial fans are impeller - driven air - moving devices that move large volumes of air at relatively low static pressures by accelerating the airflow parallel to the fan shaft — the most efficient configuration for ventilation, cooling, and air - circulation applications where system resistance is minimal.Under the Fasco, Marathon, and Axial Fan brands, our axial fan portfolio encompasses AC and EC(electronically commutated) motor - driven designs in diameters from a few inches to over 60 inches, with blade materials ranging from high - efficiency molded polymers to corrosion - resistant aluminum and stainless steel for harsh environments.HVAC system designers, equipment - cooling engineers, and industrial - ventilation specifiers select Regal Rexnord axial fans when they must move large air quantities through unit heaters, condensers, cooling towers, electronic enclosures, and general building exhaust — applications where the fan’s ability to deliver high CFM per watt of input power directly impacts system efficiency and operating cost.With speed - controllable EC models that reduce energy consumption at part load, weatherproof and hazardous - location constructions, and custom blade pitches matched to the operating point, our axial fans provide the efficient, reliable airflow that keeps industrial processes and commercial environments productive and comfortable.
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High Airflow per Watt Efficiency
Axial blade aerodynamics deliver the highest CFM - to - power ratio of any fan type at low static pressures, minimizing fan energy consumption in condenser, cooling - tower, and general - ventilation applications.
EC Motor Speed Control for Part - Load Efficiency
Electronically commutated motor models accept 0 - 10V or PWM speed signals, reducing fan speed and energy consumption when full airflow is not required — saving 30 % to 60 % compared to on - off operation.
Corrosion - Resistant Material Selection
Polymer, aluminum, and stainless - steel blade and housing options for marine, chemical, food - processing, and washdown environments where standard steel fans would fail prematurely.
Compact In - Line Axial Configuration
Fans designed for direct installation in ductwork or equipment openings, minimizing the space required compared to centrifugal blowers of equivalent airflow capacity.
Low - Noise Blade Designs for Occupied Spaces
Aerodynamic blade profiles and swept - tip geometries that reduce tonal noise, meeting the sound - level requirements of commercial kitchens, office ventilation, and indoor air - handling units.
UL, cUL & CE Certified Motors
Fan motors recognized under UL 507 and equivalent international standards, simplifying end - product certification for OEM equipment builders.
Axial Fans for Condenser, Chiller & Dry Cooler Applications
Refrigeration and HVAC condenser units, cooling towers, and dry coolers rely on axial fans to force air across heat - exchanger coils, rejecting heat to the atmosphere.These applications demand fans that operate reliably in outdoor conditions — rain, snow, dust, and temperature extremes — while maintaining the airflow that determines system capacity and energy efficiency.Regal Rexnord axial fans for condenser duty feature TEFC motors with extended weather shields, moisture - sealed ball bearings, and UV - stabilized blade materials that resist the embrittlement caused by years of direct sunlight.Fan guards designed for the specific blade diameter and mounting configuration provide the personnel protection required by OSHA without impeding airflow.For multi - fan condensers with staged capacity control, our EC - motor fans can modulate speed across the full range, providing continuous capacity matching that eliminates the temperature cycling and efficiency loss of on - off fan staging.
Axial vs.Centrifugal Fans: Selecting the Right Air - Mover for the Application
The choice between axial and centrifugal fan technology depends primarily on the system’s static pressure versus airflow requirement.Axial fans excel at moving large air volumes against resistances under approximately 0.5 inches water gauge(125 Pa) — direct exhaust through a wall louver, condenser - coil airflow, or open - room circulation.Above approximately 1.0 inch water gauge, centrifugal fans become more efficient and practical as the axial blade begins to stall.Axial fans also offer the advantage of in -line duct installation without the right - angle discharge of most centrifugals.For applications where both moderate pressure capability and in -line configuration are required, mixed - flow axial designs provide a compromise.Regal Rexnord application engineers analyze the system resistance curve and required airflow, recommending the fan type and size that operates at or near its peak efficiency point, ensuring the lowest possible energy consumption and noise for the application’s duty point.