The role of the piston machine ：
Inflating: tire filling, blow molding, blowing, blowing, food filling, etc.
Control instrumentation: machining center, machine tool, printing machine, auxiliary equipment control of power plant, brake of train
Rail changer, opening and closing of vehicle doors and windows, control valves, instrument power, etc.
Drive equipment: air gun, nail gun, robot, wind drill, pneumatic pick, etc.
Surface spraying: metal surface sandblasting, surface painting, etc.
Dust transportation: pulverized coal transportation in power plant smelting plant, dust transportation in cement plant, etc.
Pressing: metal casting, forging, etc.
Chemical reaction: chemical reaction in chemical plants, oxygen production, nitrogen production, etc.
Purging: power plant pipeline cleaning, smelting plant, mechanical processing plant iron filings, dust cleaning, workbench cleaning, etc.
Ventilation: tunnel, mine ventilation
