SDF系列隧道施工风机采用弯掠组合正交型叶片，适用于各种不同类型的公路、铁路、隧道施工等方面。具有高效、节能、低噪声，送风距离远等优点。本系列风机可配用多项调速电机满足大断面、长距离、更新通风条件的要求，根据用户需要也可制成隔爆型．SDF系列一般不允许单机运行，用户可选用相应型号的SF系列隧道风机。

 

 

　　SDF series tunnel fan, with skewed-swept combined orthogonal type blended combination orthogonal blade, is suitable for various types of highway, railway, tunnel construction and other aspects, which as the advantegies of high efficiency, energy saving, low noise, long air supplying distance etc.. This series fan can be matched with a number of speed adjustable motor to meet the requirements of large section, long air supplying distance, updating ventilation condition, and made into explosion-proof type according to users’needs. SDF series generally do not allow single operation and the user can choose the corresponding models of SDF series.