The different process in cleaning metal materials

Published on May 25, 2016

Sand blasting and shot blasting are both cleaning process used on mechanical surfaces. But the application and principle of each blasting process is different. In sand blasting process,compressed air is used where as in shot blasting method a throwing wheel is used.

In the shot blasting method the throwing wheel or rotating disk turns rapidly in high speed which causes the steel shots to move quickly towards the work piece surface. Once the process is completed there is a finishing effect and also improves the strength. This shot blasting method does not produce silicon dusts which cause fewer problems with environment pollution. Shot blasting is also known as shot peening. Shot blasting can increase the fatigue strength and life on the material. Short blasting is the when hard steel shots are bombarded on the surface of the steel at a high speed.

Sand blasting also known as abrasive blasting uses compressed air as its source of power. In sand blasting, the compressed air used shoots abrasive sand stream at high velocity towards the surface of the metal material.


The abrasive sand helps in the cutting effect and helps clean the surface completely. Also, at the same time this process will greatly improve the mechanical performance and the surface quality. This abrasive blasting method allows the coating or painting to be more protective, better resistance and smooth to last longer.

Sandblasting is an abrasive process used to remove rust, paint, corrosion, dirt and discoloration from the surface layer of a material. Sand blasting is a technique in which sand, glass beads and other particles are used in an equipment to shoot at high speed across the surface of any hard materials such as metal until it is sandpapered smooth. Sand blasting is usually done to remove a previous finish work on an item, to prepare a surface layer to accept a new coat of paint or to remove rust.

These abrasive blasters work in various different surfaces like metal, fiberglass and carbon. Likewise there are also several different types of abrasive materials that are used in cleaning these surfaces. The type of method used to blast the surface usually depends on how hard and challenging the removal is and the impact level in which the material can withstand. It is very essential to know the differences in each blasting methods as each application is different from each other. These blasting processes are used for purposes like cleaning, etching, stripping, polishing and strengthening. The choice of using the right blasting option depends on the nature of the work required.