Super fine quantitative sanding machine

The utility model discloses a super fine quantitative sanding machine, including the quantitative friction arm of two series connection, grinding roller and back grinding roller before promptly, preceding grinding roller and the back grinding roller abrasive band of adopting different figures respectively, the entry end of preceding grinding roller is equipped with front press roll, front press roll's entry end is equipped with into the cloth padder, the entry end of going into the cloth padder is equipped with into the yardage roll, the exit end of preceding grinding roller is equipped with preceding dust removal brush, the entry end of back grinding roller is equipped with the back compression roller, the exit end of back grinding roller is equipped with back dust removal brush, back dust removal brush's exit end is equipped with out the yardage roll, the utility model has the advantages of: get into the grinding roller downwards from board upper portion, make things convenient for the operative employee to