Tunnel Fan

chinacoal05 Product Introduction tunnel fan tunnel fan, carpark ventilation fan, wall fan SDS-Jet Tunnel Ventilation Fan for Construction SDS jet flow fans is specially used for the tunnel lengthways ventilation system, the fans is installed hanging on the top roof of tunnel or both sides, which do not effect the traffic, noneed to build exhaust way. Low cost building , is very ideal ventilation fans. Main Parameter Model Motor Poles Rotating Speed r/min Blade Angle blast