Media blasting, or sand blasting, is a surface treatment process widely used in a variety of different industries with many diverse purposes. Abrasive blasting is the process by which an abrasive media is accelerated through a blasting nozzle by means of compressed air. The abrasive used varies based on the surface treatment required.
Media selection is a crucial decision in the engineering of abrasive blasting processes. The different media types have different hardness, shape, and density, and each is available in a wide range of particle sizes. Many times it is necessary for sample processing to take place to lock in the final media type and size. The equipment used to perform the sand blasting process varies through industry; there are hand cabinets, dedicated automatic high production models, and completely robotic systems with closed loop process controls. The type of machine utilized depends on the surface treatment applied as well as the end use of the component.