EX-certified explosion-proof fan has an explosion-proof switch. Fan diameter: 18 inches (450 mm), perfectly connected with 18 inches anti-static hose. The axial flow fan adopts 1100W explosion-proof motor, high speed: 2800Rpm, suitable for long-time ventilation work, low noise 73 dB(A). Sturdy steel boxed frame is easy to carry, easy to use and store. High-output fan design with large suction power.Diameter: 18 inches (450 mm) and 6 thick blades provide large capacity:150 cubic meters per minute. Two durable grilles provide continuous working safety and cleanliness for the fan. In order to facilitate the movement to a suitable position, 4 stable wheels are provided at the bottom. Ideal for panel beating, ventilation in chemical and metallurgical industries. Capacity: 150 cubic meters per minute.