A flow wrapping machine 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 businesses that need to package large quantities efficiently.

How Do Flow Wrapping Machines Work?

Flow wrapping machinery uses a continuous roll of flexible film to produce repeatable sealed packs.

1. Product Feeding

Products enter the wrapping section through an automatic conveyor or feeding arrangement.

2. Film Forming

The machine guides the film around each product during the packaging process.

3. Longitudinal Sealing

The machine seals the film lengthways so that it surrounds the product in a tube.

4. The Pack Is Sealed and Separated

The machine creates end seals and then separates each pack from the film web.

5. Pack Exit

The completed pillow pack leaves the machine ready for storage, transport or retail display.

Why Use a Flow Wrapping Machine?

Businesses often choose flow wrapping machines when they need faster production and repeatable packaging results.

Increased Production Rates

Depending on the machine model and product dimensions, a flow wrapper may package several thousand items each hour.

Repeatable Pack Presentation

The machine applies consistent seals and pack formatting to every item. This can help produce a consistent presentation across a production run.

Less Manual Handling

An automated system reduces hands-on work throughout the wrapping process. Staff can therefore be assigned to other duties.

Protection During Storage and Transport

The sealed film can shield products against dirt, moisture, contamination and handling damage during warehousing, handling and delivery.

Packaging for Different Products

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

Which Products Can Flow Wrapping Machinery Package?

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

Typical applications include:

• Biscuits
• Cakes, bread products and other bakery goods
• Sweets, chocolate bars and confectionery
• Fresh produce
• Selected frozen products
• Medical devices
• Pharmaceutical goods
• Personal care products
• Domestic and consumer products
• Hardware components

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

Which Packaging Films Work with Flow Wrappers?

Different film materials can be used according to the packaging requirements.

Available film options include:

• BOPP film
• Polyolefin packaging film
• Polyethylene film
• PET film

The most suitable film depends on the product, required shelf life, desired presentation and production environment.

When Is It Time to Use Flow Wrapping Machinery?

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

A flow wrapping machine may be suitable if:

• Your required packaging output is rising
• Manual packaging slows the production line
• Packaging quality varies between operators
• Greater consistency is required
• Manual packaging is becoming more expensive

Automatic packaging can improve productivity while maintaining consistent pack quality.

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:

here
• Maximum production speed
• Supported product dimensions
• Fast and straightforward changeovers
• Photocell registration for printed films
• Integrated date or batch coding
• Automatic feeding integration
• User-friendly controls
• 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.

A shrink wrap machine surrounds the product with shrink film before applying heat to tighten the material.

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

Can Flow Wrapping Machinery Be Added to an Existing Production Line?

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

The machine can work alongside feeding units, conveyor systems and labelling equipment. This allows manufacturers to increase packaging output without rebuilding the entire production process.

Kempner Flow Wrapping Systems

Kempner has more than 50 years of experience supplying packaging machinery and materials throughout the UK.

Kempner supplies both horizontal and vertical machines that can be configured for different product types.

Systems may include printed-film controls, coding equipment and layouts adapted to individual applications.

Support services include machine installation, commissioning, maintenance and technical assistance. These services can help businesses support dependable long-term production.

Frequently Asked Questions

What Does a Flow Wrapper Package?

A flow wrapping machine packages individual products in flexible film to form sealed pillow packs. These packs can help shield items while they are stored, delivered or presented for sale.

Are Flow Wrappers Used for Food Packaging?

Yes, they are. Flow wrapping is widely used for bakery goods, confectionery, snacks and fresh produce. It provides a hygienic sealed pack.

Are Flow Wrappers Suitable for Non-Food Items?

Yes, they can. Manufacturers use flow wrapping machinery for pharmaceutical products, medical devices, hardware, cosmetics and consumer goods.

What Is the Speed of a Flow Wrapping Machine?

Packaging speed is affected by the equipment model, pack format and item being handled. Many high-performance machines can produce several thousand sealed packs in an hour.