An automatic shrink wrap machine is a packaging system that moves products through the packaging process 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 consistent and professional-looking pack 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 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. Automatic Product Feeding

A conveyor automatically carries products into the wrapping equipment.

2. The Product Is Wrapped

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

3. Sealing the Pack

A sealing system joins the film securely around the item.

4. Shrinking the Film

The wrapped item travels through a heat tunnel where the film shrinks.

5. The Completed Pack

The finished pack leaves the machine ready for storage, transport or retail display.

Why Use an Automatic Shrink Wrapping Machine?

Automatic shrink wrapping offers a number of practical benefits for production businesses.

Higher Packaging Speeds

An automatic line can wrap products at a much faster rate than a manual system. 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 spend more time on other tasks.

Protection for Stored and Transported Goods

Shrink film can help protect products from dust, moisture and tampering during handling, storage and transport.

Reduced Material Use

Automatic systems can regulate film use more closely than manual wrapping. This can reduce waste while retaining reliable seals.

Where Are Automatic Shrink Wrap Machines Used?

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

Common applications include:

• Food manufacturing
• Beverage production
• Domestic products
• Books, magazines and other printed goods
• Pharmaceutical packaging
• Consumer goods
• Industrial components
• Retail multipacks

The equipment can be configured to wrap single products, promotional bundles and grouped goods.

When Is It Time to Move to Automatic Shrink Wrapping?

A manual or semi-automatic machine may be suitable at first, but higher production levels can make automatic equipment more practical.

You may need an automatic machine if:

• Employees spend a large amount of time wrapping products manually
• Your required output is increasing
• Pack consistency varies depending on the operator
• You need greater output without adding more labour
• 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
• Seal quality and reliability
• Compatible shrink films
• 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?

With a semi-automatic machine, an operator usually has to place the product or begin one or more stages.

Automatic systems handle almost the entire cycle with limited operator involvement. They are therefore better suited to businesses producing hundreds or thousands of packs each day.

The main results are higher throughput, greater consistency and less operator involvement.

How Fast Can Automatic Shrink Wrap Machines Operate?

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 between 25 and 40 packs per minute. High-speed automatic side sealers may exceed 100 packs per minute in suitable applications.

Kempner Automatic Shrink Wrapping Systems

Kempner has supplied packaging machinery and shrink wrap materials for more than 50 years. The company works with businesses across numerous production environments.

Its machinery range includes compact automatic sealers, standard L-sealers, side sealers and custom-built systems.

Kempner also provides commissioning, servicing and technical support. These services are intended to help businesses maintain dependable machine performance.

Frequently Asked Questions

Can automatic machines handle different product sizes?

Yes. Automatic equipment can often be configured to handle several product formats. However, the time required to switch products varies by machine.

Are automatic machines only for large manufacturers?

Yes, particularly when a smaller company is increasing its output. Investment often becomes worthwhile when manual processes begin limiting daily output.

Do automatic shrink wrap machines reduce packaging costs?

They can reduce labour needs, improve efficiency and limit film waste when correctly specified. The machine must be properly selected for the products and production targets.

Are automatic machines compatible with recyclable shrink film?

Many current machines can use recyclable films, films containing recycled material and certain compostable options. Suitability depends on the application and equipment settings.