Auto Sheet-fed Square Bottom paper bag machine

By implementing steps including paper feeding,line imposing,top folding,side gluing,tube forming,bag turnover, bottom forming,bottom cardboard inserting and bottom closing inline, this China Auto Sheet-fed Square Bottom paper bag machine produced by EZ TECH can effectively ensure high-quality paper bags as well as save labor costs. Equipped with advanced pre-heap paper feeder,this machine can realize non-stop feeding, thereby improving the production capacity.Special mechanical and electrical patented designs ensure that  the machine can process various kinds of paper,thus being able to produce different excellent paper bags, which are especially suitable for food,clothing and luxuries industries.

Special patented design for top folding enables the machine to make 3 different kinds of bag mouths,so as to greatly enlarge business range of customers and bring more profits to customers.

Unconventional bottom cardboard inserting function can effectively strengthen weight capacity of paper bags and reduce labor cost of customers.

Core selling points

1. Integrated loading of square bottom hard cardboard, enhancing both load-bearing capacity and texture

The Auto Sheet-fed Square Bottom paper bag machine is equipped with an exclusive bottom hard cardboard automatic loading and sealing mechanism. It eliminates the need for manual placement of the bottom plate and can complete bag bottom shaping and reinforcement. The hard cardboard is tightly adhered to the bag bottom, significantly improving the bag's load-bearing capacity, preventing the bottom from collapsing when loading heavy items, and making the bag shape more upright, presenting a high-end texture, and addressing the pain points of traditional paper bags being floppy and having poor load-bearing capacity.

2. Three patented bag opening folding designs expand business boundaries

The top folding mechanism adopts a special patented design, supporting the production of three different bag opening styles without the need to replace complex molds. By adjusting parameters, it can be switched. A single machine can cover the bag opening customization requirements of different customers, without the need to purchase additional machines, significantly expanding the business scope and creating more profit space for customers.

3. Continuous pre-stacked paper feeding, maximizing efficiency and reducing downtime

Equipped with an advanced pre-stacked paper feeding device, it can achieve continuous and uninterrupted feeding, avoiding the frequent paper replacement problem of traditional equipment, effectively improving production efficiency. Combined with a stable transmission system, it can maintain efficient operation for long-term continuous production, reducing downtime and debugging time, and enabling smooth production of peak season orders.

4. Multi-material compatibility, covering all scenarios of mid-to-high-end paper bags

Thanks to the special mechanical and electrical patented design, the equipment can stably handle various paper materials, including 120-200g/㎡ kraft paper, coated board paper, white card paper, and gray board paper, meeting the production needs of paper bags in different industries such as food, clothing, and luxury goods. One machine can meet the requirements of multiple product categories.

5. Integrated full-process production, significantly reducing labor costs

The entire process from raw paper to finished paper bags is automatically completed by the equipment, eliminating multiple manual processes such as embossing, folding, bottom sealing, and bottom plate loading. A single line only requires a small number of personnel to be on duty, significantly reducing labor costs, while reducing errors caused by manual operations and improving product consistency.

TECHNICAL DATA

FAQ

Q1: Can this device handle coated paper? Will there be a problem of loose edges?

A: Yes, it can. The side sticking and bottom sealing modules of the device have been optimized for coated paper. They adopt precise temperature-controlled hot bonding design. Even for coated coated board paper or white card paper, it can ensure a firm bond and avoid problems such as delamination and edge lifting. The durability and waterproof performance of the finished bags can meet the requirements of high-end packaging.

Q2: Is it complicated to switch the three folding styles of the bag opening?

A: The switching is very convenient. The adjustment of the bag opening folding styles can be directly completed on the touch panel of the device. There is no need to disassemble the mold or replace complex components. It only takes a few minutes to complete the parameter adjustment and quickly switch between different bag opening styles for production, adapting to flexible order requirements.

Q3: Will there be any offset or missed installation when installing hard cardboard?

A: No. The bottom hard cardboard installation mechanism is equipped with a high-precision positioning system. It can automatically identify the position of the cardboard and ensure that each piece of cardboard can be precisely installed at the bottom of the bag and sealed, without any offset or missed installation problems. The bottom flatness and consistency of the finished bags are very high, and no manual secondary inspection is required.