Points pill of Shot blasting machine is the role of wheel abrasive according to certain request right assigned to the blade points the pills round opening once serious wear and abrasive will hit the end of the blade, blade abnormal wear, abrasive divergent flow will become no rules, to periodically check points according to the requirements of specification pill wheel wear in time for wear serious maru ". Directional set of opening position determine pill abrasive divided leaf position, turn the orientation on the shape of the mouth shape affects the divergence of abrasive and the size of hot spots is spread abrasive abrasive is concentrated on the surface of a region, caused by abrasive distribution on the blade the adjustable orientation set of positioning can be as appropriate to the wear and tear on opening adjustment.ensure that threw the shot blasting machine head work under the operation of the materials issue. Behind the head of blade and abrasive direct contact, its quality is closely related to throw the head performance. wear resistance of the blade directly decides the service life of blade and shot blasting machine running cost throw the head of blade is to use high wear-resisting material, wear resistance of the blade out of the associated with the material of blade closely associated with working conditions of shot blasting machine.