Shot Blasting Machine is used to provide the casting with a good surface finish and to remove any interior sand that is still adhering to the casting. The shot blasting machine provides a surface suitable for painting. Shot blasting machine is suitable for shot blasting cast or hot-forged items of small dimensions or die-cast aluminum. Shot blasting machine for shot blasting wire or rod-like material comprises of two centrifuge wheels in a closed housing, which includes an inlet for blasting shot or sand, means for conducting the wire rod material to be blasted through the housing between the centrifuge wheels and an outlet for scale blasted from the wire or rod material. These machines are arranged in line with a drawing machine so that continuous process is provided. The shot-blasting machine is enclosed in a cabin provided with a suction system for sucking the dust and with inlet & outlet prechambers provided with labyrinths & curtains that allow the passage of the rod and meanwhile prevent the outflow of shots.
Shotblasting consists of attacking the surface of a material with one of many types of shots. Normally this is done to remove something on the surface such as scale, but it is also done sometimes to impart a particular surface to the object being shot blasted, such as the rolls used to make a 2D finish. The shot can be sand, small steel balls of various diameters, granules of silicon carbide. The device that throws the shot is either a large air gun or spinning paddles, which hurl the shot off their blades.