Automatic Shrink Wrap Machines Explained
An automatic shrink wrapping system is a packaging system that moves products through the packaging process automatically. It then positions shrink film around each product, seals the film and sends the pack through a heat tunnel.
The heat tunnel causes the film to shrink closely around the item. This produces a secure and tidy finish while limiting the amount of manual work required.
Automatic machines differ from manual systems because they are built for ongoing production. Once the correct settings have been entered, the equipment can maintain steady packaging quality during long production runs.
How Does Automatic Shrink Wrap Machinery Work?
Although machine designs vary, most automatic shrink wrapping systems follow the same main stages.
1. Automatic Product Feeding
Products enter the machine by conveyor or through an integrated production line.
2. Shrink Film Positioning
Shrink film is positioned around each product before sealing begins.
3. Automatic Sealing
A sealing system joins the film securely around the item.
4. Shrinking the Film
The sealed product passes through a heated tunnel, causing the film to contract.
5. Finished Package
Once wrapped, the completed product exits the machine and can be stored, distributed or displayed.
Why Use an Automatic Shrink Wrapping Machine?
Automatic shrink wrapping offers a number of practical benefits for production businesses.
Higher Packaging Speeds
Automated systems usually process substantially more packs than manual machinery. This makes them suitable for businesses with moderate or large production volumes.
Uniform Pack Quality
The machinery applies consistent settings to each product. This creates a neat and uniform appearance.
Lower Operator Involvement
The machinery reduces the amount of hands-on packaging work. Employees can then spend more time on other tasks.
Added Protection During Distribution
Shrink film can help protect products from dust, moisture and tampering during warehousing and delivery.
Reduced Material Use
Current machinery often includes controls designed to limit excess film consumption. This can reduce waste while retaining reliable seals.
Common Uses for Automatic Shrink Wrapping Equipment
Businesses in a wide range of industries rely on automatic machinery for repeatable, high-speed packaging.
Typical sectors include:
- Food production
- Drinks and beverages
- Domestic products
- Books, magazines and other printed goods
- Pharmaceutical products
- General consumer products
- Manufactured components
- Retail multipacks
Depending on the machine configuration, shrink wrapping can be used for individual products, promotional packs or larger grouped items.
When Is It Time to Move to Automatic Shrink Wrapping?
Companies often begin with manual or semi-automatic systems before upgrading when output rises.
Signs that it may be time to upgrade include:
- Employees spend a large amount of time wrapping products manually
- Production volumes are continuing to rise
- Pack consistency varies depending on the operator
- The business needs to increase production without employing additional packaging staff
- Products need to be wrapped continuously
Automatic machinery often becomes more efficient as packaging demand increases.
How Do You Choose an Automatic Shrink Wrapping Machine?
The right machine depends on the products being wrapped and the requirements of the production line.
Important features to assess include:
- Production speed
- Maximum product dimensions
- Seal quality and reliability
- Suitable film types
- Controllable tunnel temperatures website
- Compatibility with existing conveyors
- Straightforward machine controls
- Servicing and maintenance needs
Custom configurations are available for unusual products or specialist production requirements.
What Is the Difference Between Automatic and Semi-Automatic Shrink Wrap Machines?
With a semi-automatic machine, an operator usually has to place the product or begin one or more stages.
By comparison, automatic machinery completes most parts of the wrapping process by itself. They are therefore more appropriate for high daily packaging volumes.
This can provide faster production, repeatable pack quality and reduced manual work.
What Is the Operating Speed of an Automatic Shrink Wrap Machine?
The number of packs produced per minute depends on product dimensions, equipment settings and the type of wrap required.
Many automatic shrink wrap machines can produce approximately 25 to 40 packs each minute. Some high-speed automatic side sealers can produce over 100 packs each minute when the application permits.
Automatic Shrink Wrap Machinery from Kempner
Kempner UK has supplied packaging machinery and shrink wrap materials for more than 50 years. The company works with businesses across numerous production environments.
The range covers compact automatic machines, L-sealers, side sealers and systems built for specific production needs.
Support services include installation commissioning, maintenance and technical assistance. These services are intended to keep packaging equipment working reliably over the long term.
Questions About Automatic Shrink Wrap Machines
Can automatic machines handle different product sizes?
Yes. Automatic equipment can often be configured to handle several product formats. However, changeover times depend on the machinery.
Can a small business use an automatic shrink wrap machine?
Automatic equipment may suit a small business when packaging demand begins to rise. Investment often becomes worthwhile when manual packaging starts to restrict production.
Can automation lower shrink wrapping costs?
Cost savings may come from reduced manual work, steadier production and less wasted film. The machine must be matched correctly to the application.
Can automatic shrink wrap machines use sustainable films?
Some automatic machines are compatible with recyclable, recycled-content and selected compostable shrink films. Suitability depends on the type of film, pack format and machinery specification.