We are offering adjustable roll square bottom paper bag making machine it has the advantages of fast making, high production efficiency, large adjustment range, comprehensive domestic inadequate of similar products, then to improve the new equipment. This equipment make the primary color or printed roll paper to glue on the side, folded into a tube, glue on the bottom, bag bottom forming and export bags. The machine is controlled by computer central control system , touch screen display, the servo motor control the length of paper bags, can produce a variety of sizes paper bags, the fastest can reach 220pcsmin, greatly reducing the labor costs, is the best choice for paper bag�s producing and process. features 1. material handing using hydraulic lift structure, unwinding using automatic tension control. 2. side glue suing the italian zator. 3. correction using the italian selectra, domestic referred to as the italian st. 4. paper tube forming device includes thumb-cut function. 5. automatic stopping for having no material. 6. all of center clip, drum clamps and drum machines are using spider synchronous adjustment mechanical design, can significantly reduce the adjustment time to replace the size. 7. with germany sick photoelectric, accurately tracking the printed materials. 8. equipped with automatic lubrication supply system, stoppage alarm system.