The RZFD-330(2PLY) multi-layer paper bag machine is developed based on the core concept of “two-ply construction and intelligent coordination.” It is designed to meet production scenarios requiring higher strength and protection performance. Whether for food packaging or daily chemical products, this model provides a robust and stable two-ply square bottom paper bag solution.
The machine can process two paper rolls simultaneously, with the entire workflow—from synchronized unwinding, composite lamination, tube forming and folding, bottom processing, to finished bag cutting—coordinated by an automated control system. The lamination of the two-ply structure is supported by the servo paper feeding system and the photoelectric detection system, ensuring consistent alignment between the two layers throughout the forming process. The constant-temperature gluing system automatically adjusts process parameters based on material characteristics, resulting in stronger bonding and improved bag rigidity and durability compared with conventional single-ply bag-making methods.
In terms of size compatibility, the RZFD-330(2PLY) supports a range of commonly used dimensions, suitable for medium-sized packaging bags and small to mid-size load-bearing bags across various order types. The machine adopts a modular component design, with key parts such as composite rollers and cutting knives manufactured from wear-resistant materials to ensure a longer service life and easier maintenance. All process parameters can be quickly adjusted via the control interface, eliminating the need for time-consuming mechanical adjustments during order changes and enabling flexible production for multi-batch and small-lot orders.
Regarding material compatibility, the equipment can process commonly used kraft paper, white card paper, and other materials to enhance the bag’s tear resistance, moisture protection, and load-bearing performance. Combined with the advantages of the two-ply structure, this model is particularly suitable for food and daily chemical brands seeking improved packaging protection or enhanced presentation value.
With its reliable two-ply construction, efficient production workflow, and strong adaptability, the RZFD-330(2PLY) multi-layer paper bag machine has become an essential asset for many factories looking to enhance packaging quality and optimize production efficiency. It provides solid support for enterprises aiming to expand order capacity and strengthen packaging competitiveness.
About Ruizhi Machinery
Ruizhi Machinery leads the way in eco-friendly packaging solutions, committed to a sustainable and innovative future. With over 20 years of expertise, our paper bag machines are recognized globally for their unmatched efficiency and reliability. Trusted by customers in over 120 countries across Europe, America, Asia, and Africa, our products set the standard for quality and performance. For more information about Ruizhi Machinery, please visit www.mted.com or www.wzruizhi.com
