An automatic shrink wrapping system is a packaging system that automatically receives products from a conveyor or production line. It then covers the product with shrink film, seals the film and sends the pack through a heat tunnel.

Inside the heat tunnel, the film contracts tightly around the product. This produces a secure and tidy finish while reducing manual handling.

Unlike manual packaging systems, automatic machines are designed for continuous production. Once the correct settings have been entered, the equipment can wrap products repeatedly using the same settings.

How Do Automatic Shrink Wrapping Machines Work?

Most automatic shrink wrap machines use a similar packaging process, even when their designs differ.

1. Automatic Product Feeding

Products enter the machine by conveyor or through an integrated production line.

2. Shrink Film Positioning

Each product is surrounded by shrink film before it reaches the sealing section.

3. Automatic Sealing

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

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.

Advantages of Automatic Shrink Wrap Machinery

Businesses use automatic shrink wrap machines for several practical reasons.

Faster Production

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.

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

A close film covering helps shield products from dirt, damp conditions and tampering during warehousing and delivery.

Reduced Material Use

Many modern machines include settings that reduce unnecessary film use. This can reduce waste while retaining reliable seals.

Common Uses for Automatic Shrink Wrapping Equipment

Many sectors use automatic shrink wrapping equipment to package goods quickly and consistently.

Common applications include:

• Food production
• Drinks and beverages
• Domestic products
• Printed materials
• Pharmaceutical packaging
• General consumer products
• Industrial components
• Grouped retail packs

Machine settings and layout can be adapted for individual items, multipacks or larger product groups.

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
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• Your required output is increasing
• Packaging quality differs between operators
• You need greater output without adding more labour
• 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:

• Production speed
• Maximum product dimensions
• A reliable sealing system
• Compatible shrink films
• Adjustable temperature controls
• Compatibility with existing conveyors
• Straightforward machine controls
• Servicing and maintenance needs

Some systems can also be customised for unusual product dimensions or specialist packaging tasks.

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.

Businesses gain more predictable output while relying less on hands-on packaging.

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 wrapping systems 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.

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.

Can automation lower shrink wrapping costs?

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.