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.
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 manufacturers processing high volumes of products.
What Is the Flow Wrapping Process?
A flow wrapping machine uses a continuous roll of flexible film to package products quickly and consistently.
1. Products Enter the Machine
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. The Pack Is Sealed and Separated
End-sealing jaws close the package before cutting it into an individual pack.
5. Finished Product
The sealed package exits the machine and can then be stored, distributed or displayed.
What Are the Benefits of Flow Wrapping Machines?
Businesses often choose flow wrapping machines when they need faster production and repeatable packaging results.
Fast Packaging Output
Flow wrapping machinery can process thousands of products every hour when the equipment and application allow.
Repeatable Pack Presentation
Products pass through the same controlled sealing process. This can help maintain a uniform brand appearance.
Reduced Labour Costs
Flow wrapping machinery limits the need for employees to wrap every product by hand. Staff can therefore be assigned to other duties.
Protection During Storage and Transport
A closed flow-wrapped pack provides protection from dust, damp conditions, contamination and physical contact during warehousing, handling and delivery.
Packaging for Different Products
The equipment can be configured for varied product formats and packaging materials.
Common Flow Wrapping Applications
The process can package products from several different sectors.
Typical applications include:
- Biscuits
- Bakery products
- Sweets, chocolate bars and confectionery
- Fresh produce
- Selected frozen products
- Medical devices
- Pharmaceutical goods
- Cosmetics and personal care items
- Household goods
- Hardware components
Its suitability for food and non-food applications makes flow wrapping a common packaging method in manufacturing.
What Films Can a Flow Wrapping Machine Use?
The correct flexible film will depend on the item being packed and the conditions it must withstand.
Frequently used films include:
- BOPP film
- Polyolefin packaging film
- Polyethylene film
- Polyethylene terephthalate film
The correct material will be determined by the product type, storage period, presentation requirements and production setting.
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 get more info
- Packaging quality varies between operators
- You need more repeatable packaging results
- Labour costs are increasing
Automatic packaging can improve productivity while maintaining consistent pack quality.
Key Flow Wrapper Features
Several factors should be considered when selecting flow wrapping machinery.
Specifications to review include:
- Maximum production speed
- Product size capacity
- Fast and straightforward changeovers
- Photocell registration for printed films
- Date and batch-code printing
- Compatibility with automatic feeding systems
- Clear operator controls
- Reliable sealing performance
The correct choice depends on your products, current production volume and future growth plans.
Flow Wrapping Versus Shrink Wrapping
Although both methods use flexible film, the packaging processes are different.
A flow wrapper creates a closed pillow-shaped pack using continuous film.
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.
Can a Flow Wrapper Integrate with Existing Equipment?
Yes. Current flow wrappers may be installed as part of an established production system.
Compatible equipment may include automatic feeders, conveyors and labelling systems. This allows manufacturers to raise production capacity without replacing every existing system.
Why Choose Kempner for Flow Wrapping Machines?
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.
Machines can be supplied with printed-film registration, optional coding systems and tailored configurations.
Kempner also provides installation, commissioning, servicing and ongoing technical support. These services can help businesses keep equipment operating consistently.
Flow Wrapping Machine FAQs
What Does a Flow Wrapper Package?
A flow wrapping machine packages individual products in flexible film to form sealed pillow packs. These packs can protect products during storage, transport and retail display.
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 closed packaging that supports hygienic handling.
Can a Flow Wrapper Be Used for Manufactured Goods?
Yes, they can. Manufacturers use flow wrapping machinery for a range of healthcare, industrial and consumer products.
How Fast Can Flow Wrapping Machines Operate?
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.