This fan features an advanced front double-door opening mechanism with low wind resistance, good sealing, and high efficiency. The cone uses a plug-in connection mechanism, avoiding complicated bolt and nut fastening, reducing labor intensity, and improving the fan's aesthetics. The aluminum-magnesium alloy belt automatic tensioning device does not deform and has a long service life. The fan doors are equipped with rubber sealing devices when closed, effectively preventing outdoor air from entering through other stopped fans, greatly improving work efficiency (15-20% more efficient compared to fans of the same size). The motor is installed reasonably, protecting the motor while avoiding wind resistance to the blades, and the motor base connection makes the fan frame more sturdy.
