20 May 2026

MJ-350A Standing Gusset Pouch Making Machine


MJ-350A Standing Gusset Pouch Making Machine

Center Seal Polypropylene (PP) Pillow Bag Converting Machine with Gussets

Looking for a converting machine for polypropylene bags? Need to produce pillow-type bags with gussets, including transparent PP gusset bags for packaging food, daily products, and industrial items?

The MJ-350A Standing Gusset Pouch Making Machine is a high-performance solution designed for manufacturers who require center seal gusset pouch production, stable sealing quality, and fast output speed. It is widely used to produce PP pillow bags with side gussets, creating strong shelf display effects while keeping the bag lightweight and cost-effective.


What is a Center Seal Gusset Pouch?

A center seal bag (also called a back seal pillow pouch) is made by folding the film and sealing the back side. When combined with gusset forming technology, it becomes a pillow bag with gussets, allowing:

  • Bigger inner volume

  • Better product protection

  • Stronger packaging appearance

  • Improved shelf presentation

The MJ-350A is specially engineered for producing transparent polypropylene gusset pouches with high sealing precision.


MJ-350A Machine Overview

The MJ-350A Gusset Bag Converting Machine is designed for producing:

Standing gusset pouch / pillow-type gusset bags
Center seal polypropylene bags (PP)
Transparent bags with gussets
BOPP / CPP / laminated films
Food and non-food packaging gusset pouches

It is an ideal solution for companies upgrading from manual bag forming to fully automatic production.


Key Applications of MJ-350A Gusset Pouch Machine

The MJ-350A can produce gusseted center seal bags for multiple industries:

Food Packaging

  • snacks

  • candies

  • bakery products

  • dried fruits & nuts

  • frozen food bags

Household & Daily Products

  • tissue packaging

  • detergent powder bags

  • disposable gloves packaging

  • wet wipes packaging

Industrial Packaging

  • hardware accessories

  • screws and small parts

  • electronic components

With the gusset structure, the bag can hold more product while maintaining a compact appearance.


Compatible Materials (Perfect for PP Pillow Bags)

Many customers are searching for a machine that can convert polypropylene film into gusset pillow pouches.

The MJ-350A supports common PP-based materials including:

  • BOPP film

  • CPP film

  • BOPP/CPP laminated film

  • PP composite film

  • Transparent films for clear gusset bags

  • Printed film with registration marks

This makes it highly suitable for producing transparent pillow bags with gussets, which are increasingly popular in modern retail packaging.


Main Features of MJ-350A Center Seal Gusset Bag Making Machine

1. High Precision Center Seal Technology

The MJ-350A ensures stable back sealing, with clean and consistent sealing lines, which is critical for transparent polypropylene bags.

2. Gusset Forming System for Pillow Bags

The gusset unit forms strong symmetrical gussets, ensuring the bag expands smoothly and improves the packing volume.

3. Photoelectric Tracking for Printed Film

With photoelectric sensor tracking, the MJ-350A can accurately cut printed film and maintain correct positioning, reducing waste.

4. Stable Cutting & Bag Length Control

The computer control system ensures stable bag length consistency, making it suitable for mass production.

5. High Speed Production for Converting Factories

This model is built for continuous converting operations and helps customers improve daily output while reducing labor cost.


Why Choose MJ-350A for Polypropylene Gusset Bags?

If your main products are PP pillow bags with gussets, MJ-350A is an ideal choice because:

  • Optimized sealing temperature control for PP film

  • Smooth bag forming, especially for transparent materials

  • Strong sealing strength for high-speed packaging lines

  • Easy adjustment for different bag sizes and gusset widths

  • Reliable operation with low maintenance cost

This machine is widely preferred by packaging manufacturers who want to produce high-demand gusseted pillow bags efficiently.


Typical Bag Types Produced by MJ-350A

The MJ-350A can produce multiple bag styles such as:

  • Center seal pillow bag with gussets

  • Transparent gusset pouch

  • PP standing gusset pouch

  • Printed gusset bag with logo

  • Food-grade polypropylene gusset pouch

  • Retail display pillow bags with gussets


MJ-350A Technical Highlights

Machine Advantages for Converting Factories

  • High sealing stability for continuous production

  • Smooth film feeding and tension control

  • Strong gusset shaping for consistent bag volume

  • Adjustable bag length and width for different markets

  • Suitable for exporting projects and international packaging standards

If you are targeting customers in Africa, South America, the Middle East, or Southeast Asia, the MJ-350A is a competitive model for mass production of gusset bags.


Best Solution for Transparent Gusset Bag Production

Transparent gusset packaging is popular because it helps customers see the product directly, improving sales.

The MJ-350A is designed for transparent film converting with:

  • smooth forming without wrinkles

  • clean center seal line

  • strong gusset structure

  • stable cutting performance

This is why many customers choose MJ-350A as their first professional transparent polypropylene gusset pouch making machine.


Request Quotation: MJ-350A Standing Gusset Pouch Making Machine

If you are interested in a center seal converting machine for polypropylene pillow bags with gussets, the MJ-350A is the right choice.

📌 Please send your requirements to get a complete solution:

  • bag width and length

  • gusset size

  • film material (BOPP/CPP/PP laminated)

  • transparent or printed film

  • production speed requirement

We will recommend the best configuration and provide full technical support.


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MJ-350A – Reliable Center Seal Gusset Pouch Machine Supplier

The MJ-350A Standing Gusset Pouch Making Machine is a cost-effective, stable, and high-output solution for producing center seal polypropylene pillow bags with gussets, especially transparent gusset bags for retail packaging.

📩 Contact us now for price, full specifications, video demo, and turnkey converting solution.


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