Crawler type shot blasting machine is a high-strength wear-resistant rubber track or manganese steel track for loading workpieces. It uses a high-speed rotating impeller to throw the projectile onto the workpiece inside the chamber, achieving the purpose of cleaning. It is suitable for sand cleaning, rust removal, oxide skin removal, and surface strengthening of small castings, forgings, stamped parts, gears, springs, and other parts, especially suitable for cleaning and strengthening parts that are not afraid of collision.