A automatic flow wrapping system is an automated packaging system that encloses products in flexible film. The machine forms a longitudinal seal and two end seals to create a closed package.

Because of its shape, the finished package is commonly known as a pillow pack.

Flow wrappers differ from manual packaging systems because they can operate continuously. This makes the equipment suitable for businesses that need to package large quantities efficiently.

What Is the Flow Wrapping Process?

A flow wrapping machine uses a continuous roll of flexible film to produce repeatable sealed packs.

1. Products Enter the Machine

Products are carried into the machine by a conveyor or integrated feeding system.

2. The Film Is Formed Around the Product

The packaging film is shaped around each product as it moves through the machine.

3. The Length Seal Is Formed

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

4. End Sealing and Cutting

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

5. Pack Exit

The sealed package exits the machine and can then be stored, distributed or displayed.

Why Use a Flow Wrapping Machine?

Many manufacturers invest in flow wrapping machinery to increase production efficiency while maintaining packaging quality.

High Production Speeds

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

Repeatable Pack Presentation

Products pass through the same controlled sealing process. This can help keep retail packs neat and recognisable.

Lower Operator Requirements

An automated system reduces hands-on work throughout the wrapping process. Staff can therefore spend less time on repetitive packaging work.

A Protective Film Barrier

A closed flow-wrapped pack provides protection from dust, damp conditions, contamination and physical contact 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?

A flow wrapper is suitable for a wide selection of food and manufactured goods.

Common examples include:

• Individual or grouped biscuits
• Bakery products
• Sweets, chocolate bars and confectionery
• Fresh produce
• Selected frozen products
• Medical devices
• Pharmaceutical goods
• Personal care products
• Domestic and consumer products
• Hardware components

Its suitability for food and non-food applications makes flow wrapping a common packaging method in manufacturing.

Flow Wrapping Film Options

The correct flexible film will depend on the item being packed and the conditions it must withstand.

Common materials include:

• Biaxially oriented polypropylene film
• Polyolefin packaging film
• Polyethylene film
• 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?

An automatic flow wrapper may become suitable when manual processes start slowing the production line.

You may benefit from upgrading when:

• Production volumes continue to increase
• Hand wrapping creates a production bottleneck
• 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.

How Do You Choose a Flow Wrapping Machine?

Machine selection requires an assessment of pack format, output and future demand.

Useful machine features include:

• Maximum production speed
• Product size capacity
• Easy product changeovers
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• Printed-film registration using photocells
• Date and batch-code printing
• 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. Current flow wrappers may be installed as part of an established production system.

Integration options commonly include automatic product feeders, conveyors and label applicators. This allows manufacturers to add automated packaging without making major changes to the full production line.

Flow Wrapping Machinery from Kempner

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

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.

Flow Wrapping Machine FAQs

What Is the Purpose of Flow Wrapping Machinery?

A flow wrapping machine wraps separate products in flexible packaging film and produces closed pillow-shaped packs. These packs can provide protection during handling, distribution and display.

Is Flow Wrapping Suitable for Food Products?

Yes. 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, 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.