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.