This is accomplished by spraying the parts with abrasive materials at very high pressures to remove dirt, rust and other build up. The result is a cleaner, stronger part that can be restored to work or look as it was originally intended.
Grit blasting machines are particularly helpful in the automotive restoration industry where they are used to clean parts after a car has been disassembled. Once the parts have been blasted, they can be painted and the car can be restored to its original appearance. Unlike when a part is sanded manually, a grit blaster will get into every crack and crevice because the particles of most abrasive materials are so small. This process results in a more thorough and effective cleaning and surface finish.
There are many types of grit blasting machines and each one is optimal for a particular industrial or commercial application. A grit blast cabinet is used in shop applications where parts need to be treated without creating dust in the surrounding area. The part is inserted into the cabinet which is then sealed before the pressurized abrasive material is forced through nozzles into the chamber.
The operator can turn the machine on and off using a foot pedal, and rubber glove hand inserts allow them to pick the object up and move it around as it is being blasting. A blasting room works in much the same way as a blasting cabinet, except it is much larger and the operator actually works inside the room while wearing heavy protective equipment. Other types of grit blasting machines use hydro-blasting, wheel-blasting, dry-ice blasting and automated blasting.
Hydro-blasting, for example, uses highly pressurized water to blast surfaces like the exterior walls of buildings. Dry-ice blasting uses air and dry-ice under pressure that are ejected from a nozzle. This effectively removes surface contaminants due to of the force of the carbon dioxide.
Grit blasting is an effective way to harness the abrasive qualities of a material to thoroughly clean an industrial or commercial component. The various styles and sizes of grit blasting machines that are available make abrasive blasting a perfect solution for companies in many different manufacturing and repair industries.