What is Coil Sandblasting Line?

The term “Coil sandblasting line” typically refers to a manufacturing process used in the metal industry for cleaning and preparing coiled metal sheets or strips, such as steel or aluminum, prior to further processing or finishing. Sandblasting, also known as abrasive blasting or shot blasting, is a surface treatment method that involves propelling fine abrasive particles at high velocity onto the surface of the metal coil to remove contaminants, rust, scale, or other impurities, and create a clean and roughened surface for subsequent coating, painting, or other treatments.

A typical coil sandblasting line usually consists of a series of interconnected equipment and machinery, such as a coil unwinding system, a sandblasting chamber or cabinet, an abrasive blasting unit, a dust collection system, and a coil winding system. The metal coil is unwound and fed into the sandblasting chamber, where it passes through the abrasive blasting unit that propels abrasive particles onto the surface of the coil using compressed air or other means. The abrasive particles impact the surface of the coil, removing contaminants and creating a desired surface texture or roughness. The dust collection system is used to collect and remove the generated dust and debris from the blasting process, while the coil winding system rewinds the cleaned coil for further processing.

Coil sandblasting lines are commonly used in various industries, including automotive, aerospace, construction, and manufacturing, where coiled metal sheets or strips are used in the production of a wide range of products. The sandblasting process helps improve the adhesion of coatings or paints to the metal surface, enhances the overall quality and performance of the finished product, and extends the service life of the metal coil by removing corrosion or other surface defects.