Multi-Wing is Leading the Efficiency Revolution with the Introduction of EMAX4™ Fans

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EMAX4™ fans provide up to 77 percent total efficiency

EMAX4 has a computer-optimized blade design for maximum performance. Customized for your requirements, EMAX4 decreases noise by 2 to 3 dB and reduces energy consumption in air-cooled condensers, commercial refrigeration, chillers, cooling towers, evaporators and more.

“Energy efficiency and sustainability are extremely important in the commercial HVACR markets. The diversity of equipment requires new high-efficiency fans engineered for a wide variety of applications,” says Jim Crowley, president of Multi-Wing America. “The industry-leading high-efficiency design and modular construction of EMAX4 allows for customization to meet or exceed a broader range of motor speed, airflow, space and additional application requirements.”

A modular design, EMAX4 is available with 5, 6, 7, 9 or 12 blades in diameters from 22 to 36 inches (559 to 914 mm). Pitch angles include 20 degrees to 48.5 degrees in 3.5 degree increments. EMAX4 blades are constructed of glass-reinforced polyamide (PAG), and the hub is made from pressure die cast silicon aluminum alloy.

To discuss your specific application with our dedicated engineering support team or to learn about EMAX4 high-efficiency fans, visit, call +1 440.834.9400 or email info(at)multi-wing(dot)net. For access to our updated Optimiser fan selection application, visit

Multi-Wing America
Founded in 1972 as The Crowley Company, Multi-Wing America is North America’s leading supplier of high-performance axial flow fans. As an ISO 9001:2008, 14001:2004-certified company, Multi-Wing delivers exceptional service, prototyping and modular fans in the broadest range of materials and blade profiles. Headquartered in Burton, Ohio, the company specializes in providing small- to large-volume customized fans for HVACR, industrial heat exchangers and engine cooling markets.


Multi-Wing America
+1 440.834.9400

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