Air Cannon Blade Dia 18 In. 1 Phase Voltage 115/208-230 60 Hz Motor HP 1/2 CFM High 3800 Air Velocity (FPM) @ 20 ft 475 Operating Amps 6.0/3.0-2.9 Motor RPM 1725 Thermal Protection Automatic Max Ambient Temp 105 Degrees F Shaft Dia 5/8 In. Bearing Type Ball Number of Speeds 1 Number of Blades 3 Fan Mounting Location Floor Mobile Housing Material Steel Outside Dia 24 In. Width 24 In. Height 24 In. Max Depth 16 In. Standards OSHA compliant wire guards