An automatic shrink wrap machine is a packaging system that automatically receives products from a conveyor or production line. 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 cutting the need for hands-on wrapping.
Where manual equipment depends heavily on an operator, automatic machinery is made for continuous output. Once the correct settings have been entered, the equipment can package products consistently throughout the working day.
What Is the Automatic Shrink Wrapping Process?
The exact machinery may vary, but the basic shrink wrapping process is usually similar.
1. Products Enter the Machine
Products are transferred into the machine using a conveyor system or connected production line.
2. Shrink Film Positioning
Shrink film is positioned around each product before sealing begins.
3. The Film Is Sealed
The film is sealed around the product to prepare it for the shrinking stage.
4. The Pack Enters the Heat Tunnel
The sealed product passes through a heated tunnel, causing the film to contract.
5. Pack Exit
Once wrapped, the completed product exits the machine and can be stored, distributed or displayed.
What Are the Benefits of Automatic Shrink Wrap Machines?
Automatic shrink wrapping offers a number of practical benefits for production businesses.
Higher Packaging Speeds
Automatic machines can package far more products than manual equipment. This makes them suitable for medium- and high-volume production lines.
Consistent Packaging
Every pack is wrapped using the same machine settings. This creates a neat and uniform appearance.
Reduced Labour Requirements
Operators spend less time wrapping products by hand. Employees can then focus on other production duties.
Better Product Protection
Shrink film can help protect products from dust, moisture and tampering during warehousing and delivery.
More Controlled Film Consumption
Many modern machines include settings that reduce unnecessary film use. This can reduce waste while retaining reliable seals.
Which Industries Use Automatic Shrink Wrap Machinery?
Many sectors use automatic shrink wrapping equipment to package goods quickly and consistently.
Common applications include:
- Food manufacturing
- Beverage production
- Domestic products
- Printed materials
- Pharmaceutical packaging
- Consumer goods
- Manufactured components
- Retail multipacks
Depending on the machine configuration, shrink wrapping can be used for individual products, promotional packs or larger grouped items.
Should Your Business Upgrade to an Automatic Machine?
Companies often begin with manual or semi-automatic systems before upgrading when output rises.
An upgrade may be worth considering when:
- Manual wrapping takes up too much staff time
- Production volumes are continuing to rise
- Packaging quality differs between operators
- The business needs to increase production without employing additional packaging staff
- The production line requires continuous packaging
For businesses with rising volumes, automation can provide steadier output with less operator input.
What Features Should You Look for in an Automatic Shrink Wrap Machine?
Different businesses need different machinery, so the correct system will depend on your products and production process.
Important features to assess include:
- Production speed
- Maximum product dimensions
- A reliable sealing system
- Compatible shrink films
- Controllable tunnel temperatures
- Compatibility with existing conveyors here
- Simple operator controls
- Low maintenance requirements
Custom configurations are available for unusual products or specialist production requirements.
How Do Automatic and Semi-Automatic Machines Differ?
Semi-automatic equipment still requires an operator to position products or start part of the wrapping cycle.
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 has supplied shrink wrapping equipment and packaging materials for over five decades. The company works with businesses across a broad range of sectors.
Available equipment includes compact sealers, automatic L-sealers, side-sealing machines and tailored systems.
Kempner also provides commissioning, servicing and technical support. These services are intended to keep packaging equipment working reliably over the long term.
Frequently Asked Questions
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.