Vertical & Horizontal Nitrogen Flushing Sealing Machine for Puffed Snack Food

Product Overview

The Vertical & Horizontal Nitrogen Flushing Sealing Machine is designed for sealing plastic bags after nitrogen flushing, making it suitable for puffed snacks, chips, nuts, cookies, bakery products, and other food products that benefit from reduced oxygen exposure.

By filling the package with nitrogen before sealing, the machine helps reduce the amount of oxygen inside the bag while maintaining the shape and appearance of lightweight or fragile products. The sealing position can be configured for vertical or horizontal applications, depending on the product and packaging process.

The machine can also be integrated with a filling machine, packaging machine, conveyor, date coding machine, or other packaging equipment to create a continuous packaging line.

Nitrogen Flushing and Heat Sealing in One Packaging Process

For products such as potato chips, puffed snacks and nuts, simply sealing the bag is not always enough. Oxygen remaining inside the package can affect product quality during storage.

This nitrogen flushing sealing machine is designed to:

• Fill the bag with nitrogen before sealing

• Replace part of the air inside the package

• Heat-seal the plastic bag securely

• Help protect oxygen-sensitive food products

• Reduce the risk of poor sealing caused by incorrect temperature

• Support continuous packaging production

The nitrogen filling volume and sealing parameters can be adjusted according to the packaging material, bag size and product requirements.

Suitable for Puffed Snacks and Food Packaging

The machine is particularly suitable for products where package protection and appearance are important.

Typical applications include:

Snack Food

Potato chips, puffed snacks, popcorn, crackers, fried snacks and other snack products.

Nuts and Seeds

Peanuts, cashews, almonds, sunflower seeds and mixed nuts.

Bakery Products

Cookies, biscuits, bread products and other packaged bakery products.

Other Food Products

Granules, dried food, confectionery and products requiring sealed plastic packaging.

Packaging Line Integration

This nitrogen sealing machine can be used as an individual sealing unit or integrated into a complete automatic packaging line.

A typical puffed snack packaging line can include:

Product Feeding → Weighing/Filling → Bag Forming → Nitrogen Flushing → Heat Sealing → Date Coding → Product Conveying

For example, an automatic line can combine a multihead weigher or feeder, vertical form-fill-seal machine, nitrogen flushing system, thermal transfer printer and conveyor.

The coding system can print important information such as:

• Production date

• Expiry date

• Batch number

• Lot number

• Product code

This makes the equipment suitable for manufacturers that need both food packaging and inline product coding.