Wheel blasting or peening equipment, directly converts electric motor energy into kinetic abrasive energy by rotating a turbine wheel. With these large amounts of accelerated abrasive, wheel blast machines are used where big parts or large areas of parts have to be de-rusted, descaled, de-burred, de-sanded or cleaned in some form prior to coating.
Often the method of transporting the component parts to the blast machine will define the type of unit to be installed. Simple table machines allow for easy manual hand loading of small components. Integrated automatic roller machines may require pullies and other lifting equipment to position components. While on the largest end of the scale there are complete crane roller conveyors and track systems.
DIFFERENCES BETWEEN WHEEL BLASTING / PEENING AND ABRASIVE AIR BLASTING EQUIPMENT
The key difference between using the methods of surface preparation is the process used during the blasting. Shot blasting is the process of using a throwing wheel to propel the abrasive media at the surface of the object to be prepared. While the abrasive air blasting process incorporates the use of compressed air to create a stream of abrasive that is directed towards the objects surface.
During shot blasting, abrasive gets acceleration through the throwing wheel, which is rapidly turning in a special steel housing, with one side oriented opening. Shot blasting is used for blasting metal, different profiles and welded constructions. The process is controlled within the production machine and require far less manual labor during the blasting process.