... , easy operation and reliability.5, Air box structure, reducing the loss of local resistance, and eliminates the inconvenience of bag installation problems.Discriptionof ... of highways, railways, bridges, high standards of engineering used for the ideal equipment for separation of sand and stone. Working principle ... -1.2744<1300<0.05>99.5 HQM64-5 Type Air Box Pulse Bag Dust/Sand Separation of Series