Roll-fed Paper Bag Machine Product Analysis

Roll-fed Paper Bag Making Machine uses rolls of base paper as raw material, continuously completing a full set of processes including paper feeding, gluing, bottom folding, cutting and collecting without pre-cutting single sheets of paper. The product series covers handle bags, square-bottom bags and pointed-bottom bags. Some models can be optionally equipped with a 1–4 color inline printing unit, compatible with various substrates such as kraft paper and thin baking paper.

II. Core Modular Structure

Unwinding Tension Module

Equipped with two sizes of paper roll holders (1000mm / 1200mm), matched with a tension control system. It stably regulates the tightness of the paper web during operation, alleviating paper wrinkling and dimensional deviation, and reducing downtime for roll change.

Forming Switching Module

The machine adopts replaceable forming assemblies: the round/flat rope handle unit completes rope pasting synchronously; the square-bottom unit realizes integrated creasing and bottom folding; the pointed-bottom unit adapts to short bags made of thin paper; D-cut components form handle holes directly, simplifying commissioning procedures when switching bag types.

Printing & Control Module

The optional printing unit enables synchronous pattern printing together with sectional drying. The whole machine is fitted with a touch panel for storing and recalling production parameters. Finished products are automatically collected and arranged at the outlet to reduce manual sorting.

III. Application Scenarios for Different Models

RKHF Handle Model: Shopping and gift bags for supermarkets, suitable for 80–160gsm paper;

RKFD Square-bottom Model: General food takeaway paper bags, suitable for conventional 60–160gsm paper;

RKJD Pointed-bottom Model: Short bakery bread bags, suitable for lightweight 35–80gsm paper with a smaller footprint;

Inline Printing Model: Custom branded printed paper bags, integrating printing and bag making in one line.

Finished products manufactured by the Roll-fed Paper Bag Making Machine include food bags, shopping bags and gift bags, with customers spread across more than 150 countries worldwide.

IV. Comprehensive Application Advantages

The Roll-fed Paper Bag Making Machine integrates the whole production process, eliminating semi-finished product transportation and reducing material loss. Multiple models support paper weights ranging from 35gsm to 160gsm and adapt to workshops of different sizes. Modular assemblies simplify order changeover, meeting current market demands for small-batch and multi-batch production. Manufactured in the enterprise’s standardized workshop, the machines deliver stable operation to support medium and long-term continuous production.

V. Conclusion

Against the trend of green paper packaging, the Roll-fed Paper Bag Making Machine features replaceable forming modules to produce pointed-bottom bags, square-bottom bags, handle bags and composite printed bags. It fits both flexible small & medium orders and large-scale continuous production lines, providing paper packaging manufacturers with an integrated bag-making equipment solution.