SDS series jet fan widely applied insubway(metro),highway,tunnel,dams project systems.There are 2 typesin SDS uni-direction and reversible (bi-direction)axial fan. Thethrust range up to 3500N,can be covered by fans range from 630mm to1600mm.High efficiency and low noise jet fan can be selected underdifferent load and work conditions.It have good performance inanti-corrosive,reliablility,and economics.