As a professional manufacturer of paper bag machinery, we have launched the RZFD-450A square bottom paper bag machine with inline printing, built around the core concepts of “high-speed integration and intelligent quality control.” Combining printing and bag-making into one process, the machine covers the complete production cycle from paper roll unwinding, printing, creasing, forming, and gluing to finished bag output—offering an efficient and standardized packaging solution for industries such as food, retail, and cultural products.
Through its digital control system, the RZFD-450A achieves synchronized adjustment and precise coordination between printing and bag-making, significantly reducing manual intervention to make the production process smoother and more efficient. Its high-precision flexographic printing unit supports multi-color printing and fine registration, accurately reproducing brand logos, gradient patterns, and detailed text with clarity and consistency. Combined with servo-driven paper feeding and photoelectric positioning technology, the bag-making process remains smooth and highly accurate. The intelligent constant-temperature gluing system automatically adjusts parameters according to paper characteristics, ensuring tight, firm, and neatly shaped square bottom bags that combine functionality with visual appeal.
The RZFD-450A follows a modular design concept with standardized configurations for the printing, bag-making, and electronic control units, making maintenance and adjustment more convenient. Key components offer exceptional durability and stability, maintaining precise performance even under continuous high-load operation. The machine supports multiple bag specifications, and one-click parameter switching allows quick changeovers between different orders, meeting the diverse, high-frequency demands of multi-category production while improving line flexibility and economic efficiency.
In terms of energy saving and environmental protection, the RZFD-450A embraces green manufacturing principles to reduce emissions. Its optimized power and transmission systems increase energy efficiency while minimizing consumption and material waste—supporting modern enterprises in achieving sustainable production. Whether serving brands that value fine printing quality or large-scale manufacturers seeking efficiency, the RZFD-450A delivers stable performance and premium output, creating a new production experience that balances speed, quality, and profitability.
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
