... .dynamic balancing machine.VSR=vibratory stress relief.rotor.The main products are :anti-corrosion fan.special for metallurgy fan ... draughting of different types of biomass boilers.2. Structure Main parts:Case,Impeller,Motor, protective screening. fans can be ... parts:case, impeller, air inlet, motor, system integral pedestal, main shaft, driving system (bearing house, bearing), coupling4. Parameters of ...