Pressure blaster mainly works on the direct pressure principle of blasting. In Pressure Blaster Machines air line from the compressor is connected to the directly to the pressure pot. When compressed air flows through the system, it will pressurize pressure pot tank and force media to fall downwards. When this media combines with a large volume of high pressure air, it will travel the length of the blast hose and comes out of the nozzle at high pressure. This high pressure stream of abrasive material strikes against the surface of the component to smooth a rough surface, roughen a smooth surface, shape a surface, or remove surface contaminants.