Brand Name: hongxin
Model Number: SDF-4-10, SDF(A)~SDF(E)
Place of Origin: Shanxi, China (Mainland)
Wing twisted blades are used, which have high aerodynamic efficiency. The static pressure efficiency of single-stage series fan and counter-rotating series fan devices is as high as above 80%, thus the high efficiency area is wide and energy saving effect is obvious.
Fans for mines select explosion-proof motors and put motors in isolating chambers of fans to ensure the isolation between wind current and air flow containing gas in fan flow channel and meanwhile, play heat dissipation and diversion function. The wind current pipe makes the surrounding area of motor is connected with atmosphere, which both increases the safety performance of motor and directly dissipate the heat of motor to air and improve the safety of fan operation.
High efficiency, low noise, large air volume and energy saving, they are applicable to large or extra large tunnel construction such as expressway tunnels, two-way railway tunnels and undersea tunnels. Angle of blade could be selectively adjusted in accordance with altitude to make fans reach the best operation state.