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Coil Forming & Coil Handling Solutions

Surface Treatment Solutions

Dry Sand Blasting Machine


Dry sand blasting machines are the traditional and widely recognized type of sand blasting equipment, known for their simplicity, effectiveness, and versatility in surface treatment applications. Operating without the use of water, these machines rely solely on compressed air to propel abrasive particles onto the surface, making them a go to choice for many industrial and commercial tasks.

The basic mechanism of a dry sand blasting machine is straightforward. Compressed air is generated by an air compressor and directed through hoses to a blasting gun or nozzle. The abrasive material, which can include sand, steel grit, glass beads, or other media, is stored in a hopper and fed into the airflow stream. As the compressed air and abrasive mixture exit the nozzle at high speed, they impact the surface, effectively removing rust, paint, dirt, and other contaminants. This high velocity impact also creates a rough texture on the surface, which enhances the adhesion of subsequent coatings such as paint, powder coating, or adhesives.

Dry sand blasting machines are highly adaptable to different types of workpieces and surfaces. They can be used on a wide range of materials, including metal, concrete, stone, and even some plastics. In metal fabrication shops, dry sand blasting is commonly used to clean and prepare metal parts before welding, painting, or assembly. The ability to quickly and efficiently remove large amounts of surface material makes it ideal for tasks like stripping old paint from large machinery or removing rust from steel structures.

One of the key advantages of dry sand blasting machines is their high cleaning efficiency. Without the presence of water, there is no need to wait for surfaces to dry, allowing for a faster workflow. Additionally, dry sand blasting offers greater control over the blasting process, as operators can easily adjust parameters such as air pressure, abrasive flow rate, and nozzle distance to achieve the desired level of surface roughness. However, dry sand blasting does produce significant amounts of dust, which requires proper dust collection and ventilation systems to protect the health and safety of operators and maintain a clean working environment. Despite this drawback, the simplicity, efficiency, and versatility of dry sand blasting machines continue to make them a staple in the surface treatment industry.