Premade Pouch Packaging Machine, 2-Nozzle Filling-330DG

When I discuss a new pouch packaging project with a customer, I rarely begin with the machine model. I start with three simple questions: What are you filling? What pouch are you using? And how much do you need to produce?

These questions help me decide whether a Premade Pouch Packaging Machine, 2-Nozzle Filling-330DG is the right fit. The machine is built for finished premade pouches rather than roll film. It automatically handles pouch feeding, pouch opening, product filling, optional air removal or nitrogen flushing, heat sealing, coding, and finished pouch discharge.

The 2-nozzle filling system is one of the main points I focus on with this model. For suitable products and pouch formats, two filling nozzles can work within the same filling cycle. This gives manufacturers a practical way to increase filling productivity while keeping the system relatively straightforward.

At Shanghai Huacheng Packing Machinery Company, known as Huapack, we have focused on pouch packaging machinery since 2015. Our operation in Songjiang District, Shanghai brings research and development, manufacturing, sales, and technical service together. We design equipment for food, dairy, health nutrition, medical nutrition, pharmaceuticals, personal care, agrochemicals, pet food, and other industries that need reliable premade pouch packaging.

1. What the 330DG Does Differently

A premade pouch machine does not make the pouch from a roll of film. The pouch has already been printed, formed, and supplied by the packaging manufacturer.

That gives the brand more freedom over the finished package. A company can order a custom printed stand-up pouch, zipper pouch, spout pouch, or aluminum foil pouch and then use the 330DG to automate the filling and sealing process.

I see this as one of the biggest advantages of premade pouch packaging. The package design and the filling process can be handled separately.

The machine takes the finished pouch and performs the repetitive work:

1. Finished pouches are loaded into the pouch magazine.

2. The automatic pouch feeder picks and transfers an individual pouch.

3. The pouch is positioned accurately at the working station.

4. The pouch is opened.

5. The product is dosed through the two filling nozzles.

6. Vacuum or nitrogen flushing can be added when the application requires it.

7. The pouch moves to the heat-sealing station.

8. The pouch mouth is sealed under controlled heat and pressure.

9. A coding unit can add date, batch, or other production information.

10. The finished pouch is discharged to the next process.

It sounds simple, but reliable pouch packaging depends on every step being synchronized.

If the pouch is not picked correctly, the following station has nothing to work with. If the pouch does not open fully, the filling nozzle may not enter the pouch correctly. If product reaches the sealing area, the seal may become weak or uneven.

So when I evaluate a machine, I look at the whole cycle rather than one isolated specification.

Source: Process comparison based on standard flexible packaging machine configurations and PMMI packaging machinery industry research. PMMI's industry reporting covers automation, flexible machinery, servo-driven systems, and packaging equipment development. Source: PMMI, State of the Industry 2025.

2. How I Run the Two-Nozzle Filling Process

The filling section needs to match the product. This is one of the first things I explain to customers.

Two nozzles do not mean that every product should use the same dosing method. A free-flowing granule, fine powder, liquid, and thick paste behave very differently inside a filling system.

Step 1: Automatic pouch feeding

The empty premade pouches are placed into the pouch magazine. The automatic feeder separates and transfers them into the machine.

This removes one repetitive manual task. Instead of an operator picking up every pouch and placing it by hand, the machine performs the feeding action in a controlled sequence.

However, flexible pouches are not all the same.

A thick pouch may be easy to separate. A very thin pouch may stick to the next pouch. A pouch with a zipper or special surface treatment may behave differently again.

That is why I prefer to test the actual pouch before confirming the final machine configuration.

Step 2: Pouch opening

Once the pouch reaches the correct station, the machine opens it.

This step is easy to underestimate. The pouch needs to stay in the right position and provide enough opening space for the filling nozzles.

If the opening is poor, product may hit the inside wall of the pouch or reach the sealing area. This is particularly important with powders and liquids.

Step 3: Two-nozzle filling

The 330DG uses two filling nozzles for its filling configuration.

For suitable products, this allows two pouches to be filled during the filling stage. Depending on the product and target weight, we can select an appropriate dosing system such as weighing, auger dosing, or pump filling.

For example, nuts and seeds may require weighing because individual particle sizes can vary. A fine powder may need an auger system because it does not behave like a free-flowing granule. A liquid sauce may require a pump with controlled nozzle shut-off.

So I do not recommend selecting a filling system simply because a customer says “powder” or “liquid.” I want to know the actual product behavior.

Step 4: Sealing

After filling, the pouch moves to the sealing station.

The machine applies controlled heat and pressure to close the pouch. The actual sealing result depends on the pouch film structure, temperature, pressure, dwell time, and cleanliness of the sealing area.

This is another reason I test real pouches. A packaging film that looks almost identical to another film may have a different sealing temperature range.

Step 5: Discharge

After sealing, the finished pouch leaves the machine and can be transferred to a conveyor, inspection station, Checkweigher, carton packing machine, or other downstream equipment.

This makes the 330DG suitable as a standalone machine or as one part of a complete automated pouch packaging line.

3. Main Features I Built Around Daily Factory Use

Two filling nozzles for practical productivity

The two-nozzle arrangement is the core feature of this model.

For a suitable product, two pouches can be filled in the same filling stage. This can improve productivity compared with a one-nozzle configuration.

I do want to make one point clear: two nozzles do not automatically mean exactly double the total machine output. The complete cycle includes pouch feeding, opening, filling, sealing, and discharge. The actual production rate depends on the product, pouch size, filling weight, dosing system, and machine settings.

PLC touchscreen control

The PLC control system gives the operator a central place to manage machine operation.

Instead of relying on many separate controls, the touchscreen can display machine status, parameters, alarms, and other operating information.

For daily production, I value this kind of simple interface. Operators may need to switch between products or adjust filling parameters. Clear controls reduce unnecessary confusion.

Servo-driven machine movement

The machine uses multiple servo mechanisms to coordinate important movements.

Servo control is useful because pouch packaging is heavily dependent on timing and position. The pouch must arrive at the correct station, open at the correct moment, receive the filling, and move to sealing without disturbing the previous step.

When these movements are properly coordinated, the machine can operate more smoothly.

Compatibility with multiple pouch formats

Depending on the final machine configuration and pouch test, the 330DG can be adapted for suitable:

• Stand-up pouches

• Zipper pouches

• Spout pouches

• Aluminum foil flat pouches

• Other customized premade pouches

I always recommend sending pouch samples before final confirmation. Pouch dimensions are important, but they are not the whole story. Film thickness, stiffness, friction, zipper position, pouch opening, and production tolerance can affect machine performance.

Optional vacuum and nitrogen flushing

Some products need controlled headspace or reduced air inside the pouch.

For suitable projects, I can configure vacuum or nitrogen flushing functions. The correct method depends on the product, packaging material, headspace, storage conditions, and production requirements.

I do not treat nitrogen flushing as a universal solution. The final packaging result should be verified through actual testing.

Optional coding

For products that need production dates, batch numbers, expiry information, or other identification marks, a coding system can be integrated.

The exact coding technology depends on the package surface, print requirements, line speed, and customer specification.

Source: Machine feature information is based on the 330DG configuration supplied for this product page. Industry context is supported by PMMI's packaging machinery research concerning automation, servo-driven equipment, flexible machinery, and operator requirements. Source: PMMI, State of the Industry 2025.

4. I Choose the Filling System According to the Product

One of the easiest mistakes in packaging equipment purchasing is to choose a machine from the pouch size alone.

The product inside the pouch matters just as much.

Here is how I normally think about the main product groups.

Source: Application and dosing examples are based on common packaging-machine engineering practice. The final filling method must be selected after evaluating the actual product, target weight, required accuracy, and capacity.

For example, two bags of nuts may look identical from the outside, but the nuts inside may have very different shapes and densities. That can change how the product flows into the pouch.

Powders have another problem. Some powders flow freely, while others form bridges in the hopper. A machine that works well with one powder may need a different feeding arrangement for another.

Liquid products bring another set of issues. Thin liquids may drip easily. Thick liquids need more pumping force. Some products foam when they are moved quickly.

That is why I prefer a product test before making a final recommendation.

For food packaging projects, I also remind customers that the packaging machine and the food-contact packaging material are two different questions. The U.S. FDA explains that food-contact substances are evaluated according to their intended use and conditions such as food type, temperature, and storage conditions. FDA: Food Types & Conditions of Use.

5. Applications: Where the 330DG Makes Sense

Food and snack packaging

Food is one of the natural application areas for a premade pouch filling machine.

We can design suitable configurations for nuts, snacks, seasoning, sauces, seeds, dried food, and other products that match the selected filling system.

For retail products, the pouch itself can carry high-quality printed graphics. Because the pouch is already manufactured and printed before entering the machine, the filling process does not need to form the package from a roll of film.

Dairy and nutrition products

Selected dairy products, nutritional powders, dietary products, and health-food ingredients can be considered for premade pouch packaging.

For powder products, I focus on flowability, dust, density, and filling weight. These factors affect the choice of dosing equipment and the cleanliness of the pouch sealing area.

Pharmaceutical and medical nutrition products

Selected herbal granules, dietary powders, medical nutrition products, and other suitable products can be packed into premade pouches.

For pharmaceutical projects, I recommend discussing the required hygiene level, cleaning method, contact materials, production environment, validation requirements, and destination-market regulations before final equipment selection.

Personal care and cosmetics

Shampoo, cleanser, lotion, cream, gel, and other suitable personal-care products can be packaged in flexible pouches.

For these products, viscosity is often the key point. I need the nozzle to fill the right amount and stop cleanly without leaving excessive product around the pouch opening.

Pet food

Pet treats, selected dry pet foods, powders, and semi-moist products can be considered for different pouch formats.

Again, the actual product matters. A small uniform granule behaves very differently from a large irregular pet treat.

Seeds, agrochemicals, and small hardware

Seeds, selected agricultural products, small fasteners, clips, and other components can also be packaged in premade pouches.

For small hardware, counting may be more useful than weight-based dosing in certain applications. The machine can be built around the actual product and required quantity.

6. How We Build and Test the Machine at Huapack

Huapack was established in 2015 in Songjiang District, Shanghai. Our business is centered on pouch packaging machinery, and our R&D, manufacturing, sales, and technical service teams work around the same product and project requirements.

When I prepare a machine proposal, I first collect the production information.

• Product name and physical characteristics

• Target filling weight

• Required output

• Pouch width and height

• Pouch material and thickness

• Zipper, spout, or other pouch features

• Required filling accuracy

• Vacuum or nitrogen requirements

• Coding requirements

• Factory space and line layout

• Future SKU requirements

This information helps me decide which filling system, pouch handling configuration, and optional functions are actually needed.

Then comes testing.

I do not want to see only an empty machine running. An empty machine can look perfect while a real product behaves very differently.

When samples are available, we can evaluate the pouch feeding, opening, filling, sealing, and discharge process with the actual materials.

For example, a pouch may separate correctly when empty but become difficult to open because of its stiffness. A powder may fill well for several cycles but create dust around the pouch mouth. A sauce may fill accurately but continue dripping from the nozzle.

These are the things that matter in a real factory.

We can also develop complete lines when the customer needs more than a standalone machine. Depending on the project, the system can include weighing, product feeding, pouch filling, sealing, coding, inspection, conveying, checkweighing, and downstream packaging.

PMMI's packaging machinery research also highlights automation, machine interfaces, operator training, and technical support as important considerations for modern packaging operations. PMMI: Inside the Workforce Gap.

From my point of view, advanced equipment should still be easy enough for the operator to understand. Good automation is not only about adding more functions. It is also about making daily production more stable and easier to manage.

7. Why I Recommend Huapack for a Complete Pouch Packaging Project

Buying a packaging machine is not only about the machine body.

Customers also need someone who can understand the product, choose the filling method, check the pouch, integrate optional equipment, and support the machine after delivery.

This is where our business model is different from simply supplying a standard machine.

At Huapack, we combine machine development, manufacturing, sales, and technical service under one operation. This gives us a more direct way to communicate project requirements from the initial discussion through commissioning.

We can supply the Premade Pouch Packaging Machine, 2-Nozzle Filling-330DG as a standalone machine, but we can also build it into a larger pouch packaging line.

If the customer needs a weighing system before filling, we consider how it matches the filling cycle. If a checkweigher is needed after sealing, we consider pouch spacing and conveyor transfer. If the customer wants automatic carton packing later, we can consider the discharge direction and line layout during the initial design.

I also prefer to discuss future products before the machine is finalized.

A customer may start with one pouch size but add several SKUs later. If the machine is designed with reasonable flexibility from the beginning, future changes can be easier to manage.

Our goal is not to sell the largest machine possible. It is to build a pouch packaging solution that makes sense for the customer's actual production volume, product characteristics, pouch format, and future plans.

8. FAQ: Premade Pouch Packaging Machine, 2-Nozzle Filling-330DG

What is the 2-Nozzle Filling-330DG?

It is an Automatic Premade Pouch Packaging Machine designed to feed finished pouches, open them, fill products through two filling nozzles, heat seal the pouches, and discharge the finished packages.

What is the main advantage of two filling nozzles?

Two filling nozzles allow suitable products to be filled into two pouches during the filling stage. This can provide higher filling productivity than a single-nozzle system.

Can the 330DG produce twice as many pouches as a one-nozzle machine?

Not automatically. Total output depends on the complete machine cycle, product characteristics, filling weight, dosing technology, pouch size, sealing time, and other movements. Actual capacity should be confirmed through testing.

What premade pouches can I use?

Depending on the final configuration and sample testing, the machine can work with suitable stand-up pouches, zipper pouches, spout pouches, aluminum foil flat pouches, and customized flexible pouches.

Can it fill granular products?

Yes. Nuts, seeds, seasonings, snacks, and other suitable granular products can be considered. The final dosing method depends on particle size, density, flow behavior, target weight, and required capacity.

Can it fill powder?

Yes. A suitable powder filling system can be integrated. Fine powder, nutritional powder, herbal powder, and similar products need to be evaluated for dust, flowability, density, and bridging behavior.

Can I use it for liquid products?

Yes. Suitable liquid products such as sauces, oils, cleansers, and other formulations can be considered with an appropriate pump and nozzle system.

Can it handle thick paste?

Yes, for suitable applications. Thick creams, gels, and sauces require a filling system matched to their viscosity and flow behavior. Nozzle shut-off is also important for keeping the pouch sealing area clean.

Can I add nitrogen flushing?

Yes. Nitrogen flushing can be added for suitable products and pouch structures. The final gas process should be tested with the actual product and pouch.

Can vacuum packaging be added?

Yes. Vacuum functions can be configured when required by the application. The correct vacuum level and process should be established through testing.

Can the machine print batch and date information?

Yes. A coding system can be integrated according to the required printing method, pouch material, production speed, and coding information.

Is it suitable for multi-SKU production?

Yes. Premade pouch machines are suitable for flexible production because the pouch is supplied as a finished package. However, different pouch sizes, filling weights, and products may require adjustments or changeover work.

What should I provide when asking for a quotation?

I recommend providing the product name, product characteristics, filling weight, target output, pouch type, pouch dimensions, pouch material, and optional functions.

If possible, send actual product and pouch samples. This gives us a much better basis for evaluating the filling system, pouch handling, sealing, and final configuration.

Can Huapack provide a complete automatic pouch packaging line?

Yes. We can provide standalone premade pouch filling machines as well as complete turnkey pouch packaging lines. Depending on the project, we can integrate weighing, feeding, filling, sealing, nitrogen flushing, coding, inspection, conveying, and downstream packaging equipment.

Build the 330DG Around Your Actual Product

I see the Premade Pouch Packaging Machine, 2-Nozzle Filling-330DG as a practical solution for manufacturers who want automated premade pouch packaging with a two-nozzle filling configuration.

It combines automatic pouch feeding, pouch opening, two-nozzle filling, PLC touchscreen control, servo-driven movement, heat sealing, and optional vacuum, nitrogen flushing, and coding functions in one production system.

But I do not recommend choosing it from the machine name alone.

The right configuration depends on what you are filling, how much you need to fill, what pouch you are using, how fast you need to produce, and what the finished package must achieve.

Send us your product information, pouch dimensions, filling weight, target output, and required functions. If you can provide product and pouch samples, we can evaluate the complete process and develop the machine configuration around your actual production conditions.

Whether you are searching for a 2-nozzle premade pouch packaging machine, automatic premade pouch filling machine, premade pouch filling and sealing machine, or a complete automatic pouch packaging line, Huapack can support the project from pouch handling through final sealing and downstream integration.

Source note: Product specifications and configuration details in this page are based on the information supplied for the Huapack 330DG model. Industry references are used only to provide broader packaging-industry context. PMMI sources discuss packaging machinery automation, servo-driven equipment, flexible machinery, operator interfaces, and workforce requirements. FDA information is cited only for general food-contact considerations. Actual filling accuracy, production speed, pouch compatibility, food-contact suitability, and regulatory compliance must be confirmed for the specific product, pouch, machine configuration, and destination market.