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The direct pressure type (sometimes called a pressure type) |
supplies compresssed air into a pressure tank, which contains |
abrasive media, and injects the media at a stroke after |
increasing the pressure. NICCHU's DM type and *Petit-blasting |
PD type belong in this category. The strongest injection power |
among air blasting machines is applied for processing of hard |
products or the blowing off abrasive media. |
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However, the machine is more expansive than the suction type because of the complicated mechanism. |
After injecting abrasive media from the presure tank, the pressure in the tank must be oncereleased. |
The pressure is released before refilling with abrasive media. If you need continuous injection, prepare |
two tanks to fill the abrasive media into one tank while the other injects the media. |
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