A automatic flow wrapping system 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.
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?
Flow wrapping machinery uses a continuous roll of flexible film to produce repeatable sealed packs.
1. Product Feeding
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
End-sealing jaws close the package before cutting it into an individual pack.
5. Pack Exit
The sealed package exits the machine and can then be stored, distributed or displayed.
Advantages of Flow Wrapping Machinery
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.
Repeatable Pack Presentation
Products pass through the same controlled sealing process. 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 spend less time on repetitive packaging work.
Product Protection
Flow wrapping helps protect products from dust, moisture, contamination and physical damage during storage and transport.
Flexible Packaging Options
Modern machines can package many product sizes and shapes using different flexible films.
Which Products Can Flow Wrapping Machinery Package?
The process can package products from several different sectors.
Typical applications include:
- Individual or grouped biscuits
- Bakery products
- Sweets, chocolate bars and confectionery
- Fruit and vegetables
- Frozen foods
- Medical products and devices
- Pharmaceutical products
- Cosmetics and personal care items
- Household goods
- Small industrial and hardware parts
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:
- 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?
Companies often adopt flow wrapping machinery when hand packaging can no longer keep pace with demand.
A flow wrapping machine may be suitable if:
- Production volumes continue to increase
- Manual packaging slows the production line
- Pack appearance or seal quality is inconsistent
- Greater consistency is required
- Labour costs are increasing
Automation may provide steadier production without reducing packaging consistency.
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:
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- Maximum production speed
- Product size capacity
- Easy product changeovers
- Printed-film registration using photocells
- Integrated date or batch coding
- Compatibility with automatic feeding systems
- User-friendly controls
- Reliable sealing performance
Your product range, packaging volume and projected demand should guide the final machine specification.
How Do Flow Wrappers Differ from Shrink Wrap Machines?
Although both methods use flexible film, the packaging processes are different.
Flow wrapping machinery forms film around the product before applying length and end seals.
With shrink wrapping, the product is enclosed in film that shrinks when it passes through a heat tunnel.
Businesses should consider presentation, product characteristics and post-production handling when selecting a system.
Can Flow Wrapping Machinery Be Added to an Existing Production Line?
Yes. Many flow wrapping machines are designed to connect with existing production equipment.
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.
Kempner Flow Wrapping Systems
Kempner UK has supplied packaging machines and materials across the UK for over five decades.
Its range includes horizontal and vertical flow wrapping systems for food and non-food products.
Available options include photocell registration, date or batch coding and machine configurations for specific production needs.
Kempner also provides installation, commissioning, servicing and ongoing technical support. These services can help businesses support dependable long-term production.
Flow Wrapping Machine FAQs
What Is a Flow Wrapping Machine Used For?
A flow wrapping machine packages individual products in flexible film to form sealed pillow packs. These packs can provide protection during handling, distribution and display.
Is Flow Wrapping Suitable for Food Products?
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. Manufacturers use flow wrapping machinery for medical items, pharmaceuticals, small components, personal care goods and household products.
How Many Products Can a Flow Wrapper Package?
The production rate varies according to product dimensions and machine specification. Many high-performance machines can package thousands of individual items each hour.