This machine automatically adjusts width and height for different-sized cardboard boxes, suitable for small batch and multi-specification production. It uses instant-adhesive tape for box sealing, enabling a single operation for both top and bottom sealing, offering cost-effectiveness, speed, and ease of adjustment. The left and right drives ensure smooth transport of heavy boxes, with easy tension adjustments for belts and tape. Widely used in industries such as electronics, textiles, food, general merchandise, medicine, and chemicals. The printed tape device further enhances product image.