Sand blasting machine is widely used in industrial production process. Its main purpose is to effectively clean the 

surface of the workpiece. Today, I will briefly tell you the working principle of sand blasting machine.

1. Suction type: this type mainly uses the inhaled air to compress the air inside, so as to form a negative pressure 

inside. Then, the abrasive sand is sucked into the spray gun through the sand conveying port, and then the abrasive 

sand is sucked into the spray gun by the spray gun Spray on the workpiece for processing.

2. Press in type: the press in sandblasting machine is also powered by compressed air, but the compressed air is carried 

out in a pressure tank. Through a certain working pressure, the abrasive enters the sand outlet valve and ejects through 

the nozzle, and then processes on the workpiece surface, so as to achieve the goal.

3. Liquid type: at this time, the compressed air is still used as the power, but the abrasive at this time is in the liquid 

state. Through pressure, the grinding fluid is sprayed to the workpiece surface through the nozzle to achieve the 

purpose of machining the workpiece There is also a grinding pump as the feeding power.

Once the equipment of the automatic sand blasting machine is damp in use, the function of the equipment will be 

greatly affected. Then, how can we do a good job in the moisture-proof work of the sand blasting machine? The 

equipment should be placed in a workshop with good ventilation and lighting. The manufacturer of the tool Passivator 

on the heat dissipation hole of the equipment suggests installing a dust and moisture absorption sponge and replacing 

the sponge frequently. Once the sand blasting equipment is damp in use, the function of the equipment will be greatly 

affected.

So, how can we do a good job in the moisture-proof work of the sand blasting machine? The equipment should be 

placed in a workshop with good ventilation and lighting. The manufacturer of the tool Passivator on the heat dissipation 

hole of the equipment suggests installing a dust and moisture absorption sponge, and often replacing the sponge. The 

waterproof treatment of the equipment, such as spraying, dipping, potting and other processes. The moisture-proof 

function of the equipment can be strengthened, and the electronic components and materials with low moisture 

absorption can be selected to prevent the equipment from being affected by moisture to a greater extent. If you do not 

often use the equipment, please put it in a dry place, put the desiccant on it, and cover it with a protective cover. If the 

sand blasting opportunity reaches the rainy season and other wet seasons, you can use the discolored silica gel 

desiccant, and you should often replace the desiccant, and the equipment should be cleaned and arranged, In order to 

ensure the cleanness and sanitation of the equipment and its working environment, we must do a good job in the 

moisture-proof operation of the sandblasting machine, and protect the sandblasting machine equipment in order to 

make the equipment play a better role.