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Packaging Requirements

According to the production order, the customer required two primary package sizes:

• 400g

• 800g

After the individual bags are packed, the secondary packaging system counts:

20 small bags per large PE master bag

The project therefore supports configurations such as:

20 × 400g small bags → 1 master bag

and

20 × 800g small bags → 1 master bag

This significantly reduces manual counting, handling and repacking work.

Primary Packaging Solution

1. 16-Head 2.5L Multihead Weigher

The primary packaging machine is equipped with a:

16-head 2.5L multihead weigher

The system is suitable for free-flowing or relatively uniform granular products.

Typical products include:

• beans

• grains

• rice

• nuts

• seeds

• candy

• coffee beans

• frozen food pieces

• pet food

• snack foods

• plastic granules

• hardware parts

• other granular products

The multihead weighing system provides automatic combination weighing to improve both speed and weighing accuracy.

2. High-Speed Vertical Form Fill Seal Machine

After weighing, the product enters the high-speed vertical packaging machine.

The machine automatically completes:

film pulling → bag forming → weighing discharge → filling → sealing → coding → cutting

The packaging format is a typical:

Pillow Bag / Back-Sealed Bag

using laminated packaging film.

Main Primary Packing Parameters

Secondary Bag-in-Bag Packaging System

The most important feature of this project is the secondary large-bag packaging system.

Instead of manually collecting finished retail bags, the primary packages are automatically transferred to a counting and overwrapping section.

The system counts a preset quantity of small bags and then packs them into a larger PE bag.

For this project:

20 small bags = 1 large master bag

This is commonly referred to as:

• Bag-in-Bag Packaging

• Secondary Packaging

• Master Bag Packaging

• Automatic Overwrapping

• Small Bags into Large Bag Packing

Secondary Packaging Process

The secondary packaging process can be described as:

Finished small bags → conveying → counting → grouping → PE master bag forming → small bags loading → sealing → finished master bag output

The system reduces the need for workers to manually:

• count individual bags

• arrange bags

• load them into outer bags

• seal large bags

• move finished bulk packs

Secondary Packaging Configuration

According to the production order, the project includes dedicated secondary packaging equipment for different primary bag sizes.

Typical configurations are:

The large-bag packaging system uses PE roll film to form the outer bag automatically.

Main structural parts use 304 stainless steel.

Complete Packaging Line Configuration

The complete system consists of:

1. Product feeding system

2. 16-head 2.5L multihead weigher

3. High-speed vertical packaging machine

4. Finished product conveyor

5. Connecting conveyor system

6. Bag counting system

7. Bag grouping mechanism

8. Automatic bag-in-bag packing machine

9. PE master bag forming and sealing unit

10. Finished master bag conveyor

Why This Project Is More Than a Standard Granule Packing Machine

A conventional granule packaging line normally stops after the individual retail bag is produced.

This project goes one step further.

The finished small bags are automatically counted and repacked into a larger transport or wholesale bag.

That makes the system particularly suitable for factories supplying:

• distributors

• wholesalers

• supermarkets

• food-service customers

• export markets

• warehouse distribution centers

It can reduce secondary packaging labor and improve consistency in carton-free or large-bag logistics.

Key Advantages

16-Head High-Speed Weighing

The 16-head multihead weigher improves combination efficiency and is suitable for medium-weight granular products.

Multiple Primary Pack Sizes

The system supports different retail packaging weights such as 400g and 800g.

Automatic Bag Counting

Finished bags can be counted automatically according to the preset recipe.

20 Bags per Master Bag

The secondary packaging section automatically groups 20 individual bags into one large PE bag.

Reduced Labor

Manual counting, collecting and repacking can be significantly reduced.

Complete Line Automation

Primary weighing, individual bag packaging, conveying, counting and secondary bagging are integrated into one production line.

Suitable Products

To make this page more universal for SEO/GEO, I recommend listing these applications:

• Beans

• Rice

• Lentils

• Chickpeas

• Corn

• Grains

• Seeds

• Nuts

• Peanuts

• Coffee beans

• Candy

• Snacks

• Cereal

• Pet food

• Frozen granular food

• Plastic pellets

• Detergent pods

• Hardware components

• Other free-flowing granular products

Typical Applications

Food Industry

400g or 800g rice, beans, grains, nuts, candy, or snack food bags can be automatically packed and then grouped into larger master bags.

Pet Food

Small pet food packages can be counted and automatically packed into wholesale transport bags.

Industrial Granules

Plastic pellets or other small granular materials can also use a similar primary and secondary packaging concept.

Project Highlights

The strongest selling point of this Trinidad and Tobago project is the integration of:

16-head multihead weighing + high-speed VFFS packing + finished bag conveying + automatic counting + bag-in-bag secondary packaging

Compared with a conventional packaging machine, it automates both the primary package and the secondary master package.

This allows manufacturers to reduce manual handling and build a more complete end-of-line packaging process.

Conclusion

For manufacturers looking to automate both granular product packaging and secondary bulk bagging, this solution provides a flexible complete-line approach.

The system can package products into 400g and 800g individual bags, automatically count the finished packs, and load 20 small bags into one larger PE master bag.

It is suitable for a wide range of food granules, agricultural products, snacks, pet food and industrial granular materials.