Model MAX7 is engineered to deliver increased airflow for power generator, and a low profile to fit into tight spaces. The backswept blade design provides for reduced noise and more efficiency in most applications. Offered in diameters from 47 to 63", the high pressure fans are available with 5- and 7-blade configurations with 26°, 31° and 36° pitch angle options. Blades are constructed of polyamide reinforced with glass fiber, which has an operating temperature from -76 to 212°F (-60 to 100°C). The hub is constructed of steel.