A flow wrapper is an automated packaging system that surrounds products with a continuous flexible film. The machine forms a longitudinal seal and two end seals to create a closed package.

The completed package is often called a pillow pack because of its shape.

Unlike manual packaging methods, flow wrapping machines are built for continuous production. This makes the equipment suitable for production lines that require fast and consistent packaging.

How Do Flow Wrapping Machines Work?

Flow wrapping machinery uses a continuous roll of flexible film to wrap products at a steady production rate.

1. Automatic Product Feeding

A conveyor or connected feeding system automatically moves products into the machine.

2. Packaging Film Positioning

As the item travels forward, the machine forms the flexible film around it.

3. Sealing Along the Pack

A longitudinal seal joins the film beneath or above the product, forming a continuous tube.

4. Cross Sealing and Cutting

Cross seals are formed at each end before the package is cut from the continuous film.

5. Finished Product

Once sealed and cut, the finished pack moves out of the machine ready for handling, delivery or sale.

What Are the Benefits of Flow Wrapping Machines?

Flow wrapping equipment can help manufacturers improve output and produce consistent packs.

Fast Packaging Output

Flow wrapping machinery can process thousands of products every hour when the equipment and application allow.

Consistent Packaging Quality

Each product receives the same seal quality and presentation. This can help maintain a uniform brand appearance.

Reduced Labour Costs

Automation reduces the amount of manual handling needed during packaging. Staff can therefore focus on other production tasks.

A Protective Film Barrier

Flow wrapping helps protect products from dust, moisture, contamination and physical damage during distribution and storage.

Packaging for Different Products

Current flow wrapping systems can handle a broad selection of product dimensions, shapes and film types.

What Can Be Packaged Using a Flow Wrapper?

Flow wrapping machinery can be used for many food and non-food products.

Typical applications include:

• Biscuits
• Bakery products
• Sweets, chocolate bars and confectionery
• Fresh produce
• Selected frozen products
• Medical devices
• Pharmaceutical goods
• Personal care products
• Household goods
• Small industrial and hardware parts

Flow wrapping is used throughout many industries because it can handle both edible products and manufactured items.

Which Packaging Films Work with Flow Wrappers?

A flow wrapping machine can use several flexible packaging films depending on the product and application.

Frequently used films include:

• Biaxially oriented polypropylene film
• Polyolefin film
• Polyethylene (PE)
• Polyethylene terephthalate film

Film selection should take account of the item, shelf-life needs, pack appearance and operating conditions.

Should Your Business Move to Automatic Flow Wrapping?

Companies often adopt flow wrapping machinery when hand packaging can no longer keep pace with demand.

A flow wrapping machine may be suitable if:

• Production volumes continue to increase
• Manual packaging slows the production line
• Packaging quality varies between operators
• You need more repeatable packaging results
• Manual packaging is becoming more expensive

Automation may provide steadier production without reducing packaging consistency.

What Features Should You Look for in Flow Wrapping Machinery?

The correct machine should be chosen according to the product and production requirements.

Useful machine features include:

• Maximum production speed
• Supported product dimensions
• Fast and straightforward changeovers
• Photocell registration for printed films
• Date and batch-code printing
• Automatic feeding integration
• User-friendly controls
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• Reliable sealing performance

Machine suitability will be determined by the items being packed, required output and expected business growth.

How Do Flow Wrappers Differ from Shrink Wrap Machines?

Both systems package products in flexible material, although their operating methods differ.

Flow wrapping machinery forms film around the product before applying length and end seals.

With shrink wrapping, the product is enclosed in film that shrinks when it passes through a heat tunnel.

The right method depends on the required appearance, product type and handling conditions after packaging.

Flow Wrapping Machine Integration

In many cases, yes. Flow wrapping machinery can often be integrated with equipment already in use.

Compatible equipment may include automatic feeders, conveyors and labelling systems. This allows manufacturers to increase packaging output without rebuilding the entire production process.

Kempner Flow Wrapping Systems

Kempner has supplied packaging machines and materials across the UK for over five decades.

The available machinery includes horizontal and vertical flow wrappers for food and non-food applications.

Available options include photocell registration, date or batch coding and machine configurations for specific production needs.

Kempner also provides installation, commissioning, servicing and ongoing technical support. These services can help businesses keep equipment operating consistently.

Questions About Flow Wrapping Machinery

What Does a Flow Wrapper Package?

A flow wrapping machine creates sealed film packs around individual items. These packs can protect products during storage, transport and retail display.

Can Food Be Packaged with a Flow Wrapper?

Yes, they are. Flow wrapping is widely used for many bakery, confectionery, snack and fresh-food applications. It provides secure and hygienic packaging.

Can a Flow Wrapper Be Used for Manufactured Goods?

Yes. Manufacturers use flow wrapping machinery for a range of healthcare, industrial and consumer products.

How Fast Can Flow Wrapping Machines Operate?

Operating speed depends on the machine and the product being packaged. Many high-performance machines can package thousands of individual items each hour.