HXCP Automatic High-speed Book Block Round Corner Trimming Machine is your ideal high productivity machine for the diarytebook, perfect binding book, board book and photo book's book block round corner trimming, can be connected with the three-knife trimmer, after the three-side trimmer, the book block will be sent to the trimmer stack with the automatic feeder, patented precise single-angle positioning trimmer system allows the book block's round corner is precise and smooth, and the corner mold is easy to change, automatic counting and stacking, all process is hand free and high effiency. The speed can be 40 pcs/min, allows the book block thickness from 10-60mm, and the different jobs conversion time only need 15-20 mins.