Pactur heat shrink tunnels deliver uniform, wrinkle-free results with low energy consumption and robust construction. They integrate seamlessly with manual, semi-automatic and automatic sealers, and work with POF, PE and PVC shrink films across a wide range of product shapes and sizes.

Efficient and Reliable Heat Shrinking

Recirculating hot air, digital thermostats and adjustable fans keep temperature stable and avoid hotspots. Temperature, conveyor speed and airflow are fully adjustable, so you can match the tunnel “recipe” to product and film. Result: smooth finish, strong corners, no burns or bubbles — even on irregular items or food trays.

Available Models

• Small Tunnels – Compact footprint for labs and artisan shops; ideal for small items and limited spaces.
• Medium Tunnels – Balanced size/output; perfect for bakeries, retail items and medium industrial runs.
• Large Industrial Tunnels – High-throughput, long chambers and powerful airflow for large or heavy packages.

All models of heat shrink tunnel include adjustable conveyor, digital temperature control and double-wall insulation for energy efficiency.

How to choose the right Shrink Tunnel

• Product size & clearance: height + 30–50 mm buffer; allow space for air recirculation around edges.
• Film & gauge: thin POF (10–15–19 μm) needs precise airflow; PE for heavy multipacks requires higher flow and longer dwell.
• Throughput: match tunnel length + belt speed to target pieces/minute to keep quality at line speed.
• Finish quality: prefer models with directional airflow to tighten corners and avoid dog-ears.

Technical Specifications

*Output indicativo: dipende da dimensioni prodotto, tipo/gauge film (POF/PE), temperatura, velocità nastro e ricircolo aria.

Energy & Quality Tuning

• Thin POF (10–15 μm): lower °C, increase airflow; moderate belt speed for glossy finish.
• Thick PE (60–120 μm): higher °C and dwell; strong directional air on edges.
• Corners & dog-ears: redirect air to edges, slightly reduce belt speed.
• Wrinkles: increase °C step-by-step or reduce gauge; check perforation.

Frequently Asked Questions

What is a heat shrink tunnel and how does it work?

A heated chamber with recirculating air; the wrapped product moves on a conveyor, heat activates the film and tightens it uniformly.

Which films can I use?

POF, PE and PVC. On request we adapt tunnels for eco-friendly/compostable films.

Can I integrate a tunnel into my line?

Yes. Our tunnels are modular and match manual, semi-automatic or fully automatic sealers.

How do I choose the model?

Consider product size, film type and target throughput. We can assess your needs quickly.

Are Pactur tunnels energy-efficient?

Yes: ceramic/IR elements, double-wall insulation, digital thermostats and adjustable fans reduce consumption.

L'articolo Heat Shrink Tunnels – Professional Packaging by Pactur proviene da Pactur International.

Pactur manufactures automatic shrink wrapping machines for industrial packaging lines, combining automatic product feeding, film sealing and shrink tunnel technology in a continuous packaging process.

The range includes automatic machines with L-sealing systems and continuous side sealing technology, allowing the packaging solution to be selected according to product dimensions, production speed, film characteristics and the required level of automation.

Designed and manufactured in Italy, Pactur automatic shrink wrappers can operate as stand-alone systems or be integrated into existing production and packaging lines.

Automatic Shrink Wrapping for Continuous Production

In an automatic shrink wrapping system, products are detected and transferred through the sealing process without requiring the operator to manually start each packaging cycle.

After sealing, the package enters the shrink tunnel, where controlled hot-air circulation shrinks the film around the product. Conveyor speed, sealing parameters and tunnel temperature can be adjusted according to the product and film being processed.

This configuration is particularly suitable for companies that need to increase packaging automation while maintaining consistent and repeatable production conditions.

L-Sealers and Continuous Side Sealers

Pactur develops different automatic sealing technologies according to the characteristics of the product and the required production process.

Automatic L-Sealing Machines

Automatic L-sealers create the package using transverse and longitudinal sealing around the product. They are suitable for a wide range of products and are commonly used when flexibility, packaging quality and automatic operation are required.

Automatic Shrink Wrapping Machines with Continuous Side Sealer

For products and production processes that benefit from continuous film sealing, Pactur also manufactures automatic shrink wrapping machines with continuous side sealing systems.

Continuous side sealing is particularly useful when handling products of different lengths, as the packaging process is not constrained by a conventional fixed-length sealing frame. This technology can therefore provide greater flexibility in automated packaging lines with variable product dimensions.

Automatic Shrink Wrapping Machine Models

The Pactur range includes different automatic configurations designed for varying production requirements and available factory space.

AUTO 30 UNICA

A compact automatic shrink wrapping solution combining the packaging process and shrink tunnel in a configuration designed to reduce the overall footprint.

AUTO 60 UNICA

An automatic shrink wrapping machine developed for applications requiring greater packaging capacity and flexibility while maintaining a compact integrated configuration.

Additional automatic configurations can be developed according to the product, required production speed and integration requirements.

Main Features of Automatic Shrink Wrappers

• automatic product detection and feeding for continuous packaging cycles;
• controlled sealing systems according to the selected machine technology;
• touchscreen operator interface for machine settings and production control;
• programmable production parameters for different products and formats;
• adjustable conveyor systems for controlled product transfer;
• shrink tunnel integration for a complete automatic packaging process;
• safety guards and protection systems designed for industrial operation;
• line integration possibilities with upstream and downstream equipment.

Shrink Films and Packaging Applications

The appropriate shrink film depends on the machine configuration, product characteristics and required packaging result. Pactur automatic shrink wrapping machines can be configured for commonly used shrink films such as polyolefin and polyethylene, depending on the specific application.

Packaging tests can be performed using the customer’s products to evaluate the most suitable combination of machine configuration, film and shrink tunnel settings.

Products and Industries

Automatic shrink wrapping is used across many industrial sectors and can be adapted to products with very different shapes and dimensions. Typical applications include:

• food and bakery products;
• boxes and multipacks;
• cosmetic and pharmaceutical products;
• printed products and stationery;
• household goods;
• hardware and technical products;
• products requiring automatic protective or presentation packaging.

Integration into Automatic Packaging Lines

Pactur automatic shrink wrappers can be integrated into existing production lines or developed as part of a new automatic packaging system.

Depending on the application, the line can include feeding conveyors, product spacing or grouping systems, sealing equipment, shrink tunnels and downstream conveyors.

The objective is to configure the packaging process around the actual product flow, required output and available factory layout.

Made in Italy by Pactur

Pactur manufactures its packaging machines in Zola Predosa, Bologna, Italy, where the main production, assembly and testing operations are carried out.

Direct control of the manufacturing process allows Pactur to develop both standard automatic shrink wrappers and customized packaging solutions according to the customer’s product and production requirements.

Customers can also provide product samples for packaging tests before the final machine configuration is defined.

Automatic Shrink Wrapping Machines in Action

Watch Pactur automatic shrink wrapping machines operating with different products and packaging configurations.

Frequently Asked Questions

What is an automatic shrink wrapping machine?

An automatic shrink wrapping machine detects and packages products without requiring the operator to manually start every sealing cycle. After sealing, the package normally passes through a shrink tunnel where the film shrinks around the product.

What is the difference between an L-sealer and a continuous side sealer?

An L-sealer creates the package using an L-shaped sealing system, while a continuous side sealer seals the film continuously along the side of the product. Continuous side sealing is particularly useful when products of different lengths must be packaged automatically.

Can an automatic shrink wrapper be integrated into an existing line?

Yes. Pactur can configure automatic shrink wrapping machines for integration with upstream production equipment, feeding conveyors and downstream packaging systems.

Can Pactur test our products before we choose the machine?

Yes. Product samples can be used for packaging tests to help determine the appropriate machine configuration, film and operating parameters.

Explore Automatic L-Sealers

For applications requiring automatic L-sealing technology, discover Pactur’s L-sealers for shrink film packaging.

Request an Automatic Shrink Wrapping Solution

Tell us what you need to package, the product dimensions and your required production speed. Pactur can evaluate the most suitable automatic shrink wrapping machine and line configuration for your application.

Request a Packaging Solution

Pactur automatic shrink wrapping machines are manufactured in Italy and are also presented through the Ladypack brand.

L'articolo Automatic Shrink Wrapping Machines – High Speed Packaging Systems proviene da Pactur International.