In the packaging of grains, seeds, flour, and other granular materials, square bottom paper bags play an important role with their strong self-standing ability and convenient loading. The RZFD-450A(2PLY) Square Bottom Paper Bag Machine, equipped with purpose-built core technologies, has become the ideal solution for this type of packaging production.
This machine features a forming system specially designed for square bottoms, enabling precise folding and gluing of the bag’s base. The double-layer paper design ensures higher bottom strength, effectively solving the common issue of leakage in traditional manual bag-making. Its innovative feeding device works in tandem with the automatic top-edge folding unit, achieving stable output of 30–120 bags per minute, which represents a significant efficiency improvement compared with similar equipment.
To accommodate different packaging requirements, the 450A(2PLY) is equipped with an intelligent temperature-controlled gluing system. This system automatically adjusts glue volume and curing temperature based on paper thickness, making it compatible with kraft paper and other raw materials ranging from 80–150g/m². The Schneider touchscreen interface integrates multiple parameter memory presets, allowing operators to switch production quickly by simply calling up stored programs.
For enhanced safety and reliability, the machine includes protective functions such as automatic stop when paper runs out and low-glue alarms, while its fully enclosed guard design reduces dust emissions during production. Choosing the 450A(2PLY) Square Bottom Paper Bag Machine means enabling granular material packaging to combine high production efficiency with professional quality and eco-friendly standards.
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
