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RZFD-330 Square Bottom Paper Bag Machine — A Versatile Bag-Making Solution for Medium-Size Paper Bags

Press Release | February 17, 2026 | Views: 1

The RZFD-330 square bottom paper bag machine is designed based on an integrated concept combining mechanical, electrical, optical, and pneumatic technologies. It is optimized for stable forming and consistent quality of medium-size square bottom paper bags. The machine demonstrates good adaptability to commonly used materials such as kraft paper, white cardboard, and food-grade packaging paper, enabling bag-making with different paper materials without replacing core machine structures. This makes it suitable for packaging enterprises expanding mid- to high-end paper bag production in line with the trend toward eco-friendly packaging.

 

In terms of operation and control, the machine coordinates printing positioning and bag-making rhythm through the control system, allowing the paper to maintain good consistency during continuous production. Pattern recognition and tracking functions assist the machine in quickly returning to stable operation after paper roll changes or temporary stoppages. When abnormal conditions are detected, the system automatically enters a protective mode, helping reduce finished product variation and control material loss. The gluing process is managed through coordinated structural design and control logic, ensuring more even adhesive distribution. While maintaining reliable bonding between the bag bottom and bag body, unnecessary adhesive consumption is reduced. The operating speed can be adjusted according to order requirements, making it easier to maintain stable production under different capacity planning conditions.

 

In terms of application and operating performance, the finished paper bags produced by the machine feature neat forming and stable structure. They are suitable for application scenarios such as premium supermarket shopping bags, mid- to high-end food packaging, branded apparel packaging, and gift packaging, meeting comprehensive requirements for appearance quality and load-bearing performance of medium-size square bottom paper bags. The overall machine layout is well organized, and energy consumption during operation is maintained at an appropriate level, aligning with modern production requirements for energy efficiency and stable operation. The lubrication and maintenance systems are designed with long-term use in mind, enabling the machine to maintain good condition under continuous operation. Whether used as a standalone production machine for small and medium-sized packaging enterprises or as a supporting bag-making unit within large-scale production lines, the RZFD-330 square bottom paper bag machine delivers stable and controllable production performance, helping users improve overall efficiency and quality in 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
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