Can dry ice cleaning machine wash PCB boards?

Yes, but you need to install an ice crusher, and the pressure should not be too high. It should be adjusted to 2 kg. If it is higher, it is easy to damage components. Dry ice is very effective for cleaning the three-proof paint, rosin, stickies, burnt matter and dust on PCB, but the green oil covering the board surface can't be washed off, and neither can the tin film on copper foil. It is said that because the thickness is less than 1mm and the adhesion is too great, the boards in our factory are all washed with dry ice before maintenance, and they were all wiped with reagents before, which makes them have a headache with poor ventilation.