The RZFD-330 square bottom paper bag machine is developed to meet the continuous production requirements of medium-size square bottom paper bags. Using roll paper as raw material, it integrates key processes including unwinding, side gluing, tube forming, fixed-length cutting, bag body creasing, and square bottom forming into a unified production flow. All processes operate in coordination under a centralized control system, reducing the impact of manual intervention on production rhythm and making the bag-making process more continuous and stable. This model is suitable for packaging enterprises carrying out standardized and scaled production of medium-size square bottom paper bags.
In terms of material adaptability and forming control, the machine demonstrates good compatibility with a variety of commonly used packaging paper materials and can cover production requirements for medium-size square bottom paper bags in different specifications. Unwinding, paper feeding, and forming processes are continuously monitored and adjusted by tension and positioning systems, ensuring stable paper transport during continuous operation. This helps improve consistency in bag dimensions and reduce material loss. The bottom gluing and forming processes work in stable coordination, resulting in finished paper bags with good standing performance and a firm bottom structure, meeting practical requirements for stability in use.
In terms of operation and structural design, the machine is equipped with a touch-screen human–machine interface, with operating status and key process parameters displayed centrally. Specification changeover is intuitive and clear, helping shorten preparation time during model changes. Paper roll loading and unloading are assisted by a lifting structure, making operation more convenient. Key components are designed with a balance between durability and maintenance convenience in terms of material selection and layout. Routine inspection and maintenance procedures are relatively simplified, enabling the machine to maintain stable operation under continuous industrial production conditions. This makes it suitable for printing and packaging enterprises as a core machine for medium-size square bottom paper bag production.
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
