Precision parts processing, in the field of metal surface treatment, shot blasting and sandblasting are two common surface treatment methods, they can be used to remove dirt, oxides and coatings, as well as increase the surface roughness. While they have the same goal, there are some differences between shot blasting and sand blasting.

Shot blasting is done by spraying high-speed metal particles (usually steel pellets) to impact the metal surface, thereby removing dirt and coating. During shot blasting, metal particles hit the surface at high speed, creating an impact force that removes dirt and coating from the surface. Sandblasting achieves the same effect by spraying high-speed particles (usually quartz sand) onto the surface.

Shot blasting and sand blasting differ in the selection of particle materials. Shot blasting usually uses steel pellets as a granular material, which has a higher hardness and can better impact the surface. Sand blasting uses quartz sand or other materials as granular materials, which have relatively low hardness and are suitable for some treatment work that is not so strict on the surface.

Shot blasting and sandblasting have different applicability for different metal materials. Shot blasting is mainly suitable for high strength metal materials, such as steel, cast iron and so on. Sandblasting is suitable for metal materials with less high material requirements, such as aluminum, copper, etc.

Shot blasting and sandblasting also have different surface treatment effects. Due to the large impact force of shot blasting, dirt and coating can be better removed, and the roughness of the surface can be increased. The impact force of sandblasting is relatively small, it can not remove some stubborn dirt and coating well, and the improvement effect of surface roughness is also limited.

In precision parts processing, shot blasting and sandblasting are two common metal surface treatment methods, and there are some differences in particle material selection, applicability and effect. According to different needs and material characteristics, choose the right treatment method, you can achieve better surface treatment effect. Whether it is shot blasting or sandblasting, it can help you improve the quality and appearance of the metal surface and enhance the value and quality of the product.