SXB400 sewing machine is to make book block by sewing the pages after collating. It is widely used in paperback and hardback book making.

Post-print binding machine is manufactured by Shanghai Purlux Machinery Co., Ltd, a JV between SPPM and Purple Scroll Investment Co., a subsidiary of Morningside Group. With more than 50 years of manufacturing experience in post-print and binding machinery, Shanghai Purlux always tops in post-print, binding and special printing machineries in China.