IN-PMSM series are permanent magnet direct drive multi-functional fans developed by Julai Ventilation, which are new fans based on PMSM permanent magnet synchronous motor technology. Diameter 5.5m ~ 7.3m, power only 0.8KW-1.2KW, 14800m³/min large air volume, can replace the traditional high energy consumption cooling equipment, save 70% energy than the small fan, and use with air conditioning, can save more than 30% energy consumption! With higher efficiency, it drives the flow of all-round air flow and produces continuous, three-dimensional circulating wind, so as to achieve the purpose of cooling people