Comparison of working principle of suction sandblasting machine and press-in sandblasting machine

      Sandblasting machines are generally divided into two categories: suction sandblasting machines and press-in sandblasting machines. There are certain differences in the working principles of suction sandblasting machines and press-in sandblasting machines. You can know one from the literal meaning. It is inhalation and the other is pressing. Under the same conditions, the suction type sandblasting machine has a lower working pressure than the press-in type sandblasting machine, and of course the consumption of compressed air is also less.

　　The working principle of suction sandblasting machine:

The suction type sandblasting machine is powered by compressed air, and the negative pressure formed by the high-speed movement of the compressed air in the spray gun draws the abrasive into the spray gun through the sand pipe and sprays it at high speed through the nozzle. The abrasive sprayed at high speed impacts the surface of the workpiece. To achieve the purpose of processing. In the suction sandblasting machine, the compressed air not only produces the suction force of the abrasive material into the spray gun, but also produces the acceleration power of the abrasive material ejected from the spray gun.

　　The working principle of the press-in sandblasting machine:

The press-in sandblasting machine is powered by compressed air. The working pressure established in the abrasive tank by the compressed air presses the abrasive into the spray gun through the sand pipe and sprays it at high speed through the nozzle. The abrasive sprayed at high speed impacts the workpiece. The surface achieves the purpose of processing. In the press-in sandblasting machine, the compressed air not only generates the pressure of the abrasive into the spray gun, but also generates the acceleration power for the abrasive to spray out of the spray gun.