Mongolia Customer Case: 300g Milk Powder Packaging Machine with Aluminum Laminated Film and Nitrogen Flushing

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Customer Requirements

The customer needed an automatic packaging machine for dairy powder products, including:

• Milk powder

• Goat milk powder

• Camel milk powder

The target packing weight was 300g per bag, using aluminum laminated film and a back seal bag format.

Since dairy powder needs better protection during storage and transportation, the customer required a packaging solution with:

• Accurate powder dosing for 300g bags

• Aluminum laminated film compatibility

• Nitrogen flushing for better oxygen protection

• Stable back seal and horizontal seal

• Dust control during powder filling

• Air exhaust before final sealing

• Easy operation with Chinese and English interface

• Date or batch code printing

• Punching function for package display or handling needs

Machine Configuration

Why Aluminum Laminated Film Was Selected

Milk powder, goat milk powder, and camel milk powder are sensitive to moisture, oxygen, light, and external contamination. If the packaging material has poor barrier performance, the powder may absorb moisture, form lumps, lose aroma, or reduce shelf life.

That is why this project used aluminum laminated film.

Compared with ordinary plastic film, aluminum laminated film provides better protection for dairy powder packaging.

Main advantages include:

• Better moisture barrier to reduce powder caking

• Strong oxygen barrier to protect product freshness

• Light-blocking performance for sensitive dairy powder

• Better sealing strength for 300g powder bags

• More premium appearance for retail packaging

• Suitable for milk powder, nutrition powder, protein powder, and other high-value powder products

For dairy powder manufacturers, aluminum foil laminated film is commonly used when the product needs better protection during storage, transportation, and retail display.

Why Nitrogen Flushing Was Added

For dairy powder packaging, oxygen inside the bag may affect product freshness and storage stability. By adding nitrogen flushing, part of the air inside the package can be replaced with nitrogen before sealing.

Nitrogen flushing helps:

• Reduce oxygen content inside the bag

• Improve product protection during storage

• Help maintain powder freshness

• Reduce oxidation risk

• Work together with aluminum laminated film for better barrier protection

• Improve packaging quality for retail dairy powder products

In this project, aluminum laminated film + nitrogen flushing created a stronger packaging protection solution for 300g milk powder bags. The aluminum film provides external barrier protection, while nitrogen flushing helps improve the internal package atmosphere before sealing.

Bag Specification

The forming set was designed according to the customer’s 300g dairy powder bag size.

The back seal bag is a common and cost-effective packaging format for dairy powder products. It is suitable for medium-size powder packs such as 300g milk powder, goat milk powder, camel milk powder, nutrition powder, and protein powder.

Why Auger Filling Was Used for Milk Powder

For powder products such as milk powder, goat milk powder, and camel milk powder, the dosing system directly affects packing accuracy and production stability.

In this project, an auger filler was selected because it is more suitable for fine powder than a cup dosing system. The auger filler can control powder discharge more steadily and is better adapted to powder products with different bulk densities and flow characteristics.

The auger filling system helps improve:

• Filling accuracy

• Powder flow control

• Dosing consistency

• Clean filling performance

• Compatibility with different dairy powder formulas

This configuration is also suitable for other powder products such as protein powder, collagen powder, meal replacement powder, nutrition powder, coffee powder, and fine food powder.

Aluminum Film Sealing and Nitrogen Protection

For aluminum laminated film packaging, sealing quality is critical. Poor sealing may cause air leakage, moisture penetration, powder contamination, or package deformation.

This machine was configured for a 15mm horizontal seal and 10mm vertical seal, helping improve sealing strength and package reliability. The back seal structure is suitable for aluminum laminated film and provides a clean package appearance for retail dairy powder products.

With the nitrogen flushing system, the machine can complete gas filling before sealing, helping the package achieve better internal protection.

The machine automatically completes:

• Film pulling

• Bag forming

• Powder dosing

• Filling

• Nitrogen flushing

• Back sealing

• Horizontal sealing

• Cutting

• Date coding

• Finished bag output

This complete system helps the customer achieve stable automatic packaging for 300g dairy powder bags.

Dust Removal and Sponge Air Exhaust

Milk powder can create dust during filling, especially when the powder is fine and light. Dust may affect the sealing area if not controlled properly.

For this reason, the machine was equipped with a dust removal device. This helps keep the filling and sealing area cleaner and improves the overall package quality.

The machine also includes sponge air exhaust. For powder bags, excess air inside the package can affect the final bag shape and carton packing. Sponge exhaust helps remove part of the air before sealing, making the finished bags flatter and easier to handle.

Together with nitrogen flushing, the air exhaust structure helps improve the final bag shape and supports better packaging performance.

Application Products

This 300g powder packaging machine with aluminum laminated film and nitrogen flushing can be used for many powder products, including:

• Milk powder

• Goat milk powder

• Camel milk powder

• Protein powder

• Nutrition powder

• Collagen powder

• Meal replacement powder

• Soy milk powder

• Cereal powder

• Coffee powder

• Chocolate powder

• Food supplement powder

• Fine chemical powder

For products requiring better moisture resistance, oxygen barrier protection, and improved freshness protection, aluminum laminated film with nitrogen flushing is a recommended packaging solution.

Project Result

After confirming the product type, bag size, film material, dosing method, sealing structure, and optional devices, Samfull provided one set of 2.0T automatic vertical powder packaging machine for the Mongolia customer.

The final solution was designed for 300g dairy powder back seal bags using 305mm aluminum laminated film. The machine was equipped with an auger filler, Siemens control system, nitrogen flushing system, dust removal device, sponge air exhaust, printer, and punching device.

This project provides a useful reference for dairy powder manufacturers that need an automatic packaging solution for milk powder, goat milk powder, camel milk powder, protein powder, or nutrition powder in aluminum laminated film bags with nitrogen flushing.