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Axial Fans
from Multi-Wing

Axial fans: Understanding Multi-Wing's high efficiency, low noise axial fans

Multi-Wing has designed and built custom axial fans for two generations across the HVAC, refrigeration, engine cooling, radiator, and oil and gas markets. We engineer axial fans using various blade and hub configurations, based on each application’s performance requirements. Axial fans draw air from one side of the fan blades and discharge it through the opposite side in linear fashion, parallel to the shaft. Axial fans are incredibly versatile because they can be engineered to move air or exchange heat in a spectrum of applications across diverse industrial markets. One of the primary benefits of using axial fans built from a system of interchangeable components is their design flexibility. High strength, lightweight materials like engineered thermoplastics and aluminum are a foundation for heavy duty axial fans that can perform in the most demanding applications and environments.

    • HVAC fans
    • Industrial exhaust fans
    • Evaporator fans
    • Radiator fans
    • Commercial ventilation fans

That versatility allows engineers to specify axial fans that target specific performance requirements including airflow, static pressure, efficiency and noise. Axial fans generate high airflow – measured in cubic feet per minute (CFM) or cubic meters per hour (m3/h) – which is necessary for HVAC fans, industrial exhaust fans, evaporator fans and select radiator fans. Also referred to as impellers, axial fans can be specifically designed to generate required static pressure, which is a measure of the amount of resistance the fan must overcome to deliver a predetermined amount of air velocity across the coils or through a fill media. Measured in inches of water gauge (in wg) or Pascal’s (PA) in metric, high static pressure is often required for industrial ventilation fans, transportation refrigeration fans, and a variety of commercial ventilation fans.

High efficiency axial fans can also result in lower power consumption or reduced fuel consumption, which translates into lower operational costs by using customized cooling tower fans, chiller fans, and condenser fans, to name a few examples. Finally, the Occupational Safety & Health Administration’s (OSHA) Noise and Hearing Conservation Standards for workplace noise exposure has made low noise axial fans a common requirement in U.S. applications. Low noise axial fan blade designs such as the sickle profile use a swept design and thin trailing edge to reduce pure tones in the sound spectrum and decrease vortex shedding to generate low wake turbulence. This creates the quieter axial fans required for the broad selection of industrial applications Multi-Wing services.

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