SBR-290 Adjustable roll square bottom paper bag making machine, it has the advantage of fast making, high production efficiency ,large adjustment range, comprehensive domestic inadequate of similar products, then to improve the new equipment. Paper bag making machine 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. Paper bag making machine make is controlled by computer central control system, touch screen display, the servo motor control the length of paper bags, it can produce a variety of sizes paper bags,the fastest can reach to 220 pcs/min, it’s greatly reducing the labor costs. Paper bag machine is the best choice for producing square bottom paper bags.