Classification of application skills of shot blasting cleaning machine: ① during the process of shot blasting cleaning machine, try to put more workpieces in the shooting area, which can not only improve the cleaning efficiency, but also reduce the wear of guard plate and increase its service life. ② When the workpiece cannot be increased, the orientation sleeve shall be adjusted to make the shot steel shot on the workpiece as much as possible, which can also increase the service life of the guard plate and reduce its wear. ③ The dedusting system shall adjust the gates of the branch pipe to make the wind distribution reasonable and enhance the dedusting effect. ④ The dust collector shall ensure regular ash cleaning. Dalian sand blasting