Working principle of sandblasting machine What is press-in type and what is suction type? What is the difference?

Sandblasting machine is a commonly used surface treatment equipment, which is mainly used to remove dirt, oxide layer and coating on the surface of objects. Its working principle is to use high-speed sand to impact the surface of an object, so as to achieve the purpose of cleaning and improving the surface quality.

Press-in sandblasting machine means that sand particles are pushed into the sandblasting gun by compressed air and then ejected through the nozzle. This kind of sandblasting machine is characterized by high spraying speed and large sand impact force, and is suitable for treating hard surfaces such as metal and concrete. The advantages of pressure sandblasting machine are good spraying effect and cleaning effect, but there are also some noises and dust.

Suction sandblasting machine means that sand particles are sucked into the sandblasting gun by negative pressure and then sprayed out through the nozzle. This kind of sandblasting machine is characterized by slow spraying speed and small impact force of sand particles, and is suitable for treating the surfaces of soft objects, such as wood and plastics. Suction disc sandblasting machine has the advantages of relatively simple operation and less noise and dust, but it may not be as good as pressure sandblasting machine.

Generally speaking, the pressure sandblasting machine is suitable for treating the surface of hard objects with good spraying effect; The suction jet machine is suitable for treating the surface of soft objects, and the operation is relatively simple. The choice of sandblasting machine depends on the specific application requirements and the characteristics of the object surface.