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.
Rather than relying on repeated manual wrapping, flow wrapping machinery supports a continuous packaging process. This makes the equipment suitable for businesses that need to package large quantities efficiently.
What Is the Flow Wrapping Process?
Automatic flow wrapping equipment uses a continuous roll of flexible film to wrap products at a steady production rate.
1. Products Enter the Machine
Products enter the wrapping section through an automatic conveyor or feeding arrangement.
2. Packaging Film Positioning
The machine guides the film around each product during the packaging process.
3. Sealing Along the Pack
The machine seals the film lengthways so that it surrounds the product in a tube.
4. The Pack Is Sealed and Separated
End-sealing jaws close the package before cutting it into an individual pack.
5. The Completed Pillow Pack
Once sealed and cut, the finished pack moves out of the machine ready for handling, delivery or sale.
Why Use a Flow Wrapping Machine?
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.
Uniform Seals and Appearance
Each product receives the same seal quality and presentation. This can help keep retail packs neat and recognisable.
Reduced Labour Costs
Flow wrapping machinery limits the need for employees to wrap every product by hand. 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.
Adaptable Product Handling
The equipment can be configured for varied product formats and packaging materials.
Which Products Can Flow Wrapping Machinery Package?
Flow wrapping machinery can be used for many food and non-food products.
Typical applications include:
- Individual or grouped biscuits
- Bakery products
- Sweets, chocolate bars and confectionery
- Fruit and vegetables
- Selected frozen products
- Medical products and 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?
Different film materials can be used according to the packaging requirements.
Frequently used films include:
- BOPP film
- Polyolefin packaging film
- Polyethylene (PE)
- PET film
The most suitable film depends on the product, required shelf life, desired presentation and production environment.
When Should You Invest in a Flow Wrapping Machine?
Companies often adopt flow wrapping machinery when hand packaging can no longer keep pace with demand.
You may benefit from upgrading when:
- Your required packaging output is rising
- Manual packaging slows the production line
- Pack appearance or seal quality is inconsistent
- Greater consistency is required more info
- Labour costs are increasing
Automation may provide steadier production without reducing packaging consistency.
Key Flow Wrapper Features
The correct machine should be chosen according to the product and production requirements.
Useful machine features include:
- Maximum production speed
- Supported product dimensions
- Easy product changeovers
- Photocell registration for printed films
- Integrated date or batch coding
- Automatic feeding integration
- Clear operator controls
- Reliable sealing performance
Machine suitability will be determined by the items being packed, required output and expected business growth.
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 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.
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.
Support services include machine installation, commissioning, maintenance and technical assistance. These services can help businesses maintain reliable packaging performance.
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. Manufacturers use flow wrapping machinery for a range of healthcare, industrial and consumer products.
How Fast Can Flow Wrapping Machines Operate?
The production rate varies according to product dimensions and machine specification. Many high-performance machines can package thousands of individual items each hour.