Flow Wrapping Machines Explained
A flow wrapping machine is an automated packaging system that wraps individual products in flexible packaging film. The machine forms a seal along the length of the pack and seals at both ends to create a closed package.
The finished format is usually described as a pillow pack.
Rather than relying on repeated manual wrapping, flow wrapping machinery supports a continuous packaging process. This makes the equipment suitable for production lines that require fast and consistent packaging.
How Does Flow Wrapping Machinery Work?
Automatic flow wrapping equipment uses a continuous roll of flexible film to wrap products at a steady production rate.
1. Automatic Product Feeding
A conveyor or connected feeding system automatically moves products into the machine.
2. Film Forming
The machine guides the film around each product during the packaging process.
3. Longitudinal Sealing
A longitudinal seal joins the film beneath or above the product, forming a continuous tube.
4. End Sealing and Cutting
The machine creates end seals and then separates each pack from the film web.
5. Pack Exit
The completed pillow pack leaves the machine ready for storage, transport or retail display.
Why Use a Flow Wrapping Machine?
Many manufacturers invest in flow wrapping machinery to increase production efficiency while maintaining packaging quality.
Fast Packaging Output
Flow wrapping machinery can process thousands of products every hour when the equipment and application allow.
Consistent Packaging Quality
Products pass through the same controlled sealing process. This can help keep retail packs neat and recognisable.
Lower Operator Requirements
Automation reduces the amount of manual handling needed during packaging. Staff can therefore focus on other production tasks.
A Protective Film Barrier
Flow wrapping helps protect products from dust, moisture, contamination and physical damage during distribution and storage.
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
The correct flexible film will depend on the item being packed and the conditions it must withstand.
Common materials include:
- BOPP film
- Polyolefin packaging film click here
- 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?
Companies often adopt flow wrapping machinery when hand packaging can no longer keep pace with demand.
A flow wrapping machine may be suitable if:
- Your required packaging output is rising
- Manual packaging slows the production line
- 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.
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:
- Maximum production speed
- Supported product dimensions
- Fast and straightforward changeovers
- Photocell registration for printed films
- Integrated date or batch coding
- Compatibility with automatic feeding systems
- Clear operator controls
- Reliable sealing performance
Your product range, packaging volume and projected demand should guide the final machine specification.
Flow Wrapping Versus Shrink Wrapping
Both systems package products in flexible material, although their operating methods differ.
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 choice will depend on the desired pack format, the product and how it will be stored or transported.
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.
The machine can work alongside feeding units, conveyor systems and labelling equipment. This allows manufacturers to raise production capacity without replacing every existing system.
Why Choose Kempner for Flow Wrapping Machines?
Kempner UK has more than 50 years of experience supplying packaging machinery and materials throughout the UK.
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.
Frequently Asked Questions
What Does a Flow Wrapper Package?
A flow wrapping machine packages individual products in flexible film to form sealed pillow packs. These packs can help shield items while they are stored, delivered or presented for sale.
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 a hygienic sealed pack.
Are Flow Wrappers Suitable for Non-Food Items?
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.