Paper binding and Jewelled binding in one machine
    Unlike other spine rougher that grinds the spine creating lots of noise and dust. Using this dust-free spine roughening unit, it opens the paper grain with very little noise and there is no paper dust. It makes the machine suitable for handling the most difficult papers and making the solid bound.

Dust-free spine roughening unit

    Two groups of roughening tooth with special angle and interval;

   Convenient to adjust the depth and angle of roughening;

   Grind the spine to strengthen the permeability of glue;

   Compress the spine into a shape of fan to increase the sticking surface.

S320D is specifically aimed at the short-run digital market producing perfect bound books using heavy coated sheets.

It features a spine roughening system which increases the bind quality by exposing the fibers in the paper being bound.