A flow wrapper is an automated packaging system that wraps individual products in flexible packaging film. The machine forms long seals and cross seals to create a closed package.

The finished format is usually described as a pillow pack.

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?

Automatic flow wrapping equipment uses a continuous roll of flexible film to wrap products at a steady production rate.

1. Automatic 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. Sealing Along the Pack

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

4. The Pack Is Sealed and Separated

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

5. The Completed Pillow Pack

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.

Increased Production Rates

Automatic systems can package thousands of products per hour, depending on the product and machine specification.

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.

Product Protection

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

Adaptable Product Handling

The equipment can be configured for varied product formats and packaging materials.

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

Because it can package both food and non-food goods, flow wrapping is widely used across manufacturing industries.

Flow Wrapping Film Options

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

Common materials 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?

Many businesses move to automatic flow wrapping when manual packaging begins to restrict production.

Signs that an upgrade may be needed include:

• Your required packaging output is rising
• Hand wrapping creates a production bottleneck
• Packaging quality varies between operators
• Greater consistency is required
• Labour costs are increasing

Automation may provide steadier production without reducing packaging consistency.

Key Flow Wrapper Features

Several factors should be considered when selecting flow wrapping machinery.

Important features include:

flow wrapping machine
• Packaging speed
• Product size capacity
• Easy product changeovers
• Printed-film registration using photocells
• Integrated date or batch coding
• Compatibility with automatic feeding systems
• Clear operator controls
• Consistent and dependable seals

Your product range, packaging volume and projected demand should guide the final machine specification.

Flow Wrapping Versus Shrink Wrapping

Although both methods use flexible film, the packaging processes are different.

A flow wrapping machine forms a sealed pillow pack from a continuous roll of film.

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 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.

Machines can be supplied with printed-film registration, optional coding systems and tailored configurations.

The company offers installation, start-up support, servicing and continued technical help. These services can help businesses keep equipment operating consistently.

Questions About Flow Wrapping Machinery

What Is a Flow Wrapping Machine Used For?

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 closed packaging that supports hygienic handling.

Can Flow Wrapping Machinery Package Non-Food Products?

Yes. Manufacturers use flow wrapping machinery for medical items, pharmaceuticals, small components, personal care goods and household products.

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 wrap several thousand products per hour.