An automatic shrink wrap machine is a packaging system that feeds products into the machine automatically. It then covers the product with shrink film, seals the film and sends the pack through a heat tunnel.

As the pack travels through the tunnel, heat makes the film contract around it. This produces a neat, secure package while cutting the need for hands-on wrapping.

Automatic machines differ from manual systems because they are built for ongoing production. Once the correct settings have been entered, the equipment can package products consistently throughout the working day.

How Do Automatic Shrink Wrapping Machines Work?

Although machine designs vary, most automatic shrink wrapping systems follow the same main stages.

1. Automatic Product Feeding

Products are transferred into the machine using a conveyor system or connected production line.

2. Film Wrapping

The machine places shrink film around the item ready for sealing.

3. The Film Is Sealed

The film is sealed around the product to prepare it for the shrinking stage.

4. Heat Tunnel

The sealed product passes through a heated tunnel, causing the film to contract.

5. The Completed Pack

Once wrapped, the completed product exits the machine and can be stored, distributed or displayed.

Advantages of Automatic Shrink Wrap Machinery

There are several reasons why manufacturers choose automatic shrink wrapping equipment.

Increased Output

An automatic line can wrap products at a much faster rate than a manual system. This makes them suitable for production environments that require steady or high output.

Repeatable Results

The machinery applies consistent settings to each product. This creates a consistent finish across the production run.

Reduced Labour Requirements

Operators spend less time wrapping products by hand. Employees can then be assigned to other parts of the production process.

Added Protection During Distribution

The wrapped film provides a barrier against dust, moisture and interference during storage and distribution.

More Controlled Film Consumption

Current machinery often includes controls designed to limit excess film consumption. This can limit wasted material without weakening the seal.

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?

Many businesses start with manual or semi-automatic equipment and move to automatic machinery as production grows.

Signs that it may be time to upgrade include:

• 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
• Products need to be wrapped continuously

As production grows, an automatic system can provide greater efficiency and more predictable output.

How Do You Choose an Automatic Shrink Wrapping Machine?

Different businesses need different machinery, so the correct system will depend on your products and production process.

Important features to assess include:

• Maximum operating speed
• Supported product sizes
• Seal quality and reliability
• Suitable film types
• Controllable tunnel temperatures
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• 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?

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.

How Fast Can Automatic Shrink Wrap Machines Operate?

Production speed varies according to product size, machine layout and packaging complexity.

Many automated shrink wrapping 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 many different industries.

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 support reliable long-term operation.

Questions About Automatic Shrink Wrap Machines

Can automatic shrink wrap machines package different products?

Yes. Automatic equipment can often be configured to handle several product formats. However, changeover times depend on the machinery.

Are automatic machines only for large manufacturers?

It can be suitable for a small business with growing production volumes. Investment often becomes worthwhile when hand wrapping can no longer keep pace with orders.

Will an automatic machine save money?

They can reduce labour needs, improve efficiency and limit film waste when correctly specified. The machine must be matched correctly to the application.

Are automatic machines compatible with recyclable shrink film?

Some automatic machines are compatible with recyclable, recycled-content and selected compostable shrink films. Suitability depends on the product, machine configuration and packaging requirements.