The pre-opened continuous-roll bag packaging machine is a semi-automatic packaging device that uses single-sided open PE film bags in continuous rolls as packaging material. Through mechanisms such as film feeding, sealing and cutting, rotation, and coding, it completes the entire process of opening the bags, inserting products, sealing, and coding. It is suitable for packaging scenarios involving small to medium batches and frequent changes between bag types, with a production capacity typically ranging from 15 to 35 cycles per minute. Its core advantages include compatibility with any bag type, quick changeovers, and the ability to operate continuously without heat buildup.