Book Sewing Machine is designed to sew the book blocks which are gathered in gathering machines. SX-340DP is specially designed to meet the demand of Digital Printing and On-Demand-Printing. Outstanding features includes: exquisite design, small space occupy, easy to operate, and perfect sewing performance. Machine adopts thin needles, dense needle sets. Maxim could sew sextodecimo (16mo)-horizontal binding as well as sextodecimo (16mo)-vertical binding, Minimum could sew 64 mo. Welcome to visit our official website : http://www.autobindingmachine.com