... suction arm, Separation unloading device, Roots blower (Vacuum pump), Electric control system, and so on. It can deliver ... unloading device, roots blower or vacuum pump), Positive press pneumatic conveying machine (pressure pump, combination pump, Air compressor) and Electric control ... materials (cement, fly ash, and mineral powder), food, chemical, power, fuel, metallurgy, and so on.The capacities of ...