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Ultimate Guide To Vertical Bagging Machine - Lintyco Pack

Author: Joy

Jun. 09, 2025

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Ultimate Guide To Vertical Bagging Machine - Lintyco Pack

Do you want to increase your production? Do you want to increase your profits?In this article, you will get the answers all.

If you want to learn more, please visit our website Kinsun.

Introduction

Vertical bagging machines, also known as Vertical Form Fill Seal (VFFS) machines, are automated packaging systems widely used across various industries for efficiently packaging products in flexible bags or pouches. These machines operate by forming bags from a roll of film, filling them with product, and sealing them, all in a vertical orientation.

How Vertical Bagging Machines Work

The principle of operation of a vertical bagging machine consists of several steps: firstly, the bag is formed by starting with a roll of packaging material (usually polyethylene or polypropylene film) and then guiding the film vertically through rollers to form a continuous tubular structure and sealing it longitudinally. During the filling phase, the product is dosed into the bag.

Vertical bagging machines have a variety of features such as the ability to add date/batch codes, tear slits for opening, hole punch for hanging displays, etc. In addition, these machines can be configured with a vacuum sealing feature as needed to extend the shelf life of perishable products such as meat.

Types of Vertical Bagging Machines

Vertical Bagging Machines are often designed to be very flexible, allowing for quick switching between different bag sizes, which can be done in minutes without the need for tools. The durability of such machines is also guaranteed for rigorous cleaning procedures and is available in stainless steel or washable options

There are several common vertical packaging machines.

Vertical Sachet Packing Machine

Designed for small, single-use packets (e.g., sugar, ketchup).

Vertical Stick Packing Machine

Create elongated packages for single-serve products like instant coffee.

Premade Pouch Packing Machine

Pouch Packing Machine is Often used as a substitute for vertical packaging machines.

Application of Vertical Bagging Machine

Food and Beverage Industry

According to Data Bridge Market Research, the demand for vertical bagging machine in the food and beverage industry is growing, which is largely attributed to their advantages in terms of packaging versatility and productivity. Vertical bagging machines are capable of handling a wide range of product forms, from snacks and confectionery to frozen foods and powdered beverages, and their high-precision filling and sealing technology ensures freshness and shelf-life, while increasing the attractiveness and marketability of the packaging.

Pharmaceutical industry

In the pharmaceutical industry, vertical bagging machines are used to package pharmaceuticals, healthcare products and medical supplies, ensuring safe sealing and dosage control of the products. At the same time, the stability and expiration date of medicines are extremely important, and the high precision filling function of the vertical bagging machine guarantees the sealing technology. In addition, the vertical bagging machine can be adapted to different packaging materials, including moisture and oxidation protection layer, which is particularly important for the long-term storage and transportation of sensitive drugs.

Cosmetic industry

Most cosmetic companies utilize these machines to package powder, liquid and cream products such as foundations, lipsticks and skin creams. Vertical bagging machines offer precise fill levels and attractive package designs, which are essential for enhancing brand image and attracting consumers. At the same time, the sealing technology of vertical bagging machine ensures freshness and stability of active ingredients, extending the shelf life of products.

Chemical industry

Vertical bagging machine are also widely used in the packaging of chemical products, including pesticides, insecticides and coatings. These products often require precise dosage control and secure sealing to prevent leakage and contamination. The ability of vertical baggers to accommodate a wide range of packaging materials, including corrosion and chemical resistant materials, ensures safe storage and transportation of products.

Other Industries

In addition to the industries mentioned above, vertical bagging machine are used for packaging in agriculture, construction materials and electronics. In agriculture, they are used to package seeds and fertilizers; in the construction industry, to package desiccants and waterproofing materials; and in the electronics sector, to package small components and accessories. These applications demonstrate the versatility and adaptability of vertical baggers, which are able to meet the demands of different industries for packaging efficiency and quality.

Technology development and innovation

Automation and robotics paired with upgrades

As industrial automation continues to advance, the level of automation in vertical bagging machines has increased significantly. Modern vertical baggers integrate advanced automation technologies such as automated parts supply, bag loading, and machine control systems, which reduce the need for manual labor and increase production capacity. The use of collaborative robots plays an important role in tasks that require precision and flexibility, freeing up human resources to handle more complex tasks.

Intelligence and Data Analytics

Intelligent control and data analytics are key technologies that drive vertical bagger performance optimization and reduce downtime. Embedded sensors and artificial intelligence algorithms monitor machine parameters, automatically detecting anomalies and adjusting settings to ensure optimal operation. Real-time data analytics provide insights into machine performance, maintenance requirements and packaging efficiency, enabling operators to make informed decisions and reduce operating costs.

Sustainability and Green Packaging

Sustainability is a growing concern for consumers and businesses. Vertical baggers are increasingly adopting sustainable practices and materials to minimize environmental impact. Biodegradable and compostable packaging films, recyclable materials, and energy-efficient designs are becoming more common, supporting a circular economy and reducing waste.

Flexibility and Customized Packaging

Flexibility and customization are essential in a rapidly changing market. Vertical baggers are designed to handle a wider range of products and packaging formats. Quick changeover systems, multiple bag heads and adjustable settings allow manufacturers to adapt to different production needs and meet customer demands for customized packaging.

New Material Bag Design and Handling

The future of vertical baggers will also focus on improved bag design and handling capabilities. Advanced film sealing technology will create stronger, more durable bags, reducing product damage and extending shelf life. Automated bag positioning and handling systems ensure precise placement and alignment, improving overall packaging quality and efficiency.

Predictive maintenance and remote monitoring

Predictive maintenance and remote monitoring are critical to minimizing machine downtime and ensuring continuous operation. Advanced algorithms predict equipment failures and trigger timely maintenance tasks, extending machine life and reducing unplanned interruptions. Remote monitoring capabilities enable manufacturers to access machine data, troubleshoot and update remotely, minimizing downtime and increasing productivity.

Conclusion

Vertical bagging machines have emerged as a critical technology transforming packaging across multiple industries, from food and pharmaceuticals to cosmetics and chemicals. Their evolution reflects the broader trends of technological innovation, sustainability, and adaptability in modern manufacturing.

For businesses seeking to enhance production efficiency, reduce waste, and stay competitive in a rapidly evolving market, investing in advanced vertical bagging technology is no longer just an option—it’s a strategic imperative.

[VIDEO DEMO] How a liquid VFFS packaging machine works

Companies that package liquid products often want two things in their automated packing system: A clean packaging process and the ability to wash down their equipment.

Luckily, modern packaging automation technologies fulfill those liquid packaging requirements...plus much more.

I'm Scott Miller, Viking Masek's VP of Product & Technology, and today I am taking you on a walkthrough of our most unique liquid packaging machine: The VFFS Liquid Sigma.

Intro to the Liquid Sigma VFFS machine

The Liquid Sigma is a continuous motion VFFS machine, meaning the packaging film moves continuously without stopping to receive its vertical seal. This result is faster packaging speeds.

Design

The design of the Liquid Sigma is stainless steel, IP66 washdown. This IP Rating means the machine's enclosures are dust-tight and can be safely cleaned with strong jets of water. The only exception to this design is the jaw carriers, constructed from aluminum for proper weight distribution (stainless steel is too heavy).

Controls

For more information, please visit Small Vertical Liquid Packing Machine.

The control system for the machine is an Allen Bradley Panel View coupled to a Compac Logix PLC and Kinetics servo drives.

Electrical components

Usually mounted directly to the side of the machine, the electrical cabinet is instead remote mounted on the Liquid Sigma. It can be mounted in a different location, out of the way of the washdown environment. One hundred feet of cable attach the remote cabinet to the machine which allows for flexibility of placement. Two junction boxes on the machine where the cabinet would have been mounted act as the termination points for all electrical components.

With the intro out of the way, let's dive right into our walkthrough, starting at the top of the machine:

1. Liquid hopper & filler

A VFFS liquid packaging process usually begins with the liquid product in a hopper. This hopper can be heated if the product must be packaged at a higher temperature to reduce its viscosity. 

A liquid piston pump will draw the liquid product to the top of the machine where a lance will deposit discrete volumes of product into the bag through the hollow center of the forming tube.

2. Bag forming

A wide, flat roll of film is threaded over various rollers through the machine and then threaded over a forming tube assembly which brings the vertical sides of the bag together to begin forming its shape.

The film is transported through the machine by vacuum pull belts. These belts use vacuum suction to grip the film and transport it through the body of the machine.

Vacuum pull belts come as standard on the Liquid Sigma. The advantages of vacuum pull belts include less wear and the fact that the film will not be squeezed tightly against the forming tube and instead will have a 1mm gap. This minimizes film bunching or slipping issues that may arise when using regular friction pull belts.

3. Vertical seal

The Liquid Sigma uses a continuously moving heated band-type vertical seal assembly. This allows for uninterrupted seal creation on continuous motion machines. The band seal does not come in direct, constant contact with the film. Rather, it is set to a fixed gap so it does not squeeze the film against the heated block of the seal assembly.

As the film passes by the heated block in the vertical seal assembly, it bonds the layers of film together to create a strong vertical bag seal.

4. Filling of bags with liquid product

Using a lance that transports the liquid product through the hollow center of the forming tube, the liquid product is deposited into the bag in discrete volumes.

The Liquid Sigma shown in the video above is custom-designed with special components that detect the volume or the fill heights of the liquid in the forming tube itself. As the film moves in a continuous motion, the liquid level within the forming tube area goes from the top sensor to the bottom sensor and stays within that range as the bags are filling.

Typically the bags fill in 1/2 gallon or 1 gallon fills, usually hot fills. However, we have done projects with product temperatures as low as 34° F and as high as 195° F.

5. Squeeze roll assembly

The squeeze roll assembly is designed to provide an airless fill. This means each bag will have zero residual air inside it after sealing.

The squeeze roll assembly opens and closes with every cycle while the film moves continuously. The squeeze rollers are programmed to 'know' that they must close at a specific time in order to provide the pre-specified volume of liquid into the bag.

The design premise behind the squeeze rollers is influenced by the durometer of the squeeze roll material. It is available in a couple of different durometers that are directly related to the desired product fill, the product, and how hard or soft the rollers must be.

6. Cross seal

A set of heated jaws come together to bond the layers of film together to create a strong horizontal seal. The seal of the bottom of the bag and the top of the next bag are created at the same time.

The jaw design on the Liquid Sigma is unique, configured in such a way that it can seal through any residual liquid that is left on the inside of the film. This means each bag will receive a strong seal and you won't have to worry about messy, leaky bags.

7. Bag discharge

At this point, the finished bag is cut and discharged from the machine. It can either be deposited into a receptacle or dropped directly onto a conveyor to transport it to downstream equipment like checkweighers, carton packing, or case packing.

Additional Liquid Sigma Features

Film carriage

The film carriage on the Liquid Sigma is 100% stainless steel, allowing for 100% washdown. In most cases, customers are cleaning with caustic cleaning foam and rinsing with a hot rinse. Stainless steel construction means you can aggressively wash down those components and not have corrosion issues or breakdown of metals.

Powered film unwind

The film unwind has a surface assist. Films for liquid products tend to be a little more slippery and the surface assist provides a positive unwind and helps the film move through the system easily.

Extra film spindle

Many clients opt to purchase an extra film spindle so they can have an additional roll ready when it comes time to change rolls. This saves time during splice cycles.

Film splice table

Above the roll of film, you will see a splice table, which is used to join the end of a spent roll of film to a new roll. This will automatically draw the new roll of film through the machine without having to manually re-thread it.

Printer

Clients can opt to add a printer to their Liquid Sigma for date coding purposes. Located directly in the film path, the printer is usually not fully washdown, so care should be taken to remove or protect it during washing cycles. Enclosures are available to protect key printer components during washing.

Guide for first-time liquid packaging machine buyers

Don't know what to look for when shopping for a liquid packing machine to make sure you get the right equipment for your business? Download our free buyer's guide to learn all you need to know to make the most informed decision.

Are you interested in learning more about Automatic Filling Machine? Contact us today to secure an expert consultation!

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