As a professional manufacturer dedicated to the research, development, and manufacturing of paper bag machinery, we have introduced the RZFD-330 double-layer paper bag machine. Built around the core design concept of “double-layer reinforcement and intelligent integration,” this model is specifically developed to enhance the load-bearing capacity and protective performance of paper bags. It provides enterprises in food, powder packaging, and other related fields with a high-quality and standardized bag-making production solution.
The machine covers the full production process, including synchronized unwinding of double-layer paper rolls, precise laminating, creasing and forming, square bottom gluing, and finished bag cutting. Featuring a fully automated process design, it relies on a digital control system to achieve accurate and coordinated operation of the two paper layers, eliminating the need for manual segmented laminating. As a result, production efficiency is significantly improved compared with traditional single-layer bag-making equipment. In terms of performance, the machine is equipped with a servo paper feeding system and a high-precision photoelectric positioning system, ensuring that deviation between the two paper layers is controlled within a very small range during lamination and that bag size accuracy remains stable and reliable. Combined with an intelligent constant-temperature gluing system, the machine can adapt to various commonly used bag-making materials such as kraft paper, white cardboard, and laminated paper across different grammage ranges. Glue volume and temperature can be automatically adjusted according to production requirements, ensuring firm bonding without delamination. The finished paper bags deliver excellent load-bearing performance, with tear resistance significantly improved compared to single-layer paper bags.
This model adopts a modular design to meet the production requirements of double-layer square bottom paper bags in multiple specifications. With one-button setting switching, it can quickly adapt to different order requirements, maintain stable daily output over long-term operation, and effectively reduce material waste. Key components such as laminating rollers and cutting units are manufactured from wear-resistant alloy materials, resulting in a significantly extended service life compared with standard components.
Whether for enterprises requiring heavy-duty packaging solutions or food brands with strict requirements for packaging protection performance, the RZFD-330 double-layer paper bag machine delivers reliable double-layer bag-making technology and efficient continuous production capability. It helps users enhance packaging quality while optimizing order delivery efficiency.
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
