A automatic flow wrapping system is an automated packaging system that encloses products in 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.
Unlike manual packaging methods, flow wrapping machines are built for continuous production. This makes the equipment suitable for businesses that need to package large quantities efficiently.
How Do Flow Wrapping Machines Work?
Flow wrapping machinery uses a continuous roll of flexible film to wrap products at a steady production rate.
1. 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. Longitudinal Sealing
A longitudinal seal joins the film beneath or above the product, forming a continuous tube.
4. The Pack Is Sealed and Separated
The machine creates end seals and then separates each pack from the film web.
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 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.
Which Packaging Films Work with Flow Wrappers?
Different film materials can be used according to the packaging requirements.
Available film options include:
- BOPP film
- Polyolefin film
- Polyethylene (PE)
- Polyethylene terephthalate film
The correct material will be determined by the product type, storage period, presentation requirements and production setting.
When Should You Invest in a Flow Wrapping Machine?
An automatic flow wrapper may become suitable when manual processes start slowing the production line.
You may benefit from upgrading when:
- Production volumes continue to increase
- Manual packaging slows the production line
- Pack appearance or seal quality is inconsistent
- You need more repeatable packaging results flow wrapping machinery
- Manual packaging is becoming more expensive
Automatic packaging can improve productivity while maintaining consistent pack quality.
How Do You Choose a Flow Wrapping Machine?
Machine selection requires an assessment of pack format, output and future demand.
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
- User-friendly 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
Both systems package products in flexible material, although their operating methods differ.
Flow wrapping machinery forms film around the product before applying length and end seals.
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.
Flow Wrapping Machine Integration
In many cases, yes. Flow wrapping machinery can often be integrated with equipment already in use.
Compatible equipment may include automatic feeders, conveyors and labelling systems. 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 biscuits, cakes, sweets, snack products and produce. 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.
How Many Products Can a Flow Wrapper Package?
Operating speed depends on the machine and the product being packaged. Many high-performance machines can wrap several thousand products per hour.