Shrink Tunnel takes products wrapped in shrink film and passes them through a heated chamber on a conveyor belt — the controlled heat causes the film to shrink evenly and tightly around every contour of the product, transforming a loose film envelope into a smooth, firm, professional wrap. It works with all standard shrink films, handles all product types across all industries, and pairs directly with any L-Sealer or Side Sealer to form a complete integrated shrink-wrap line.
Workbench Height Range (with Stand):550-780mm±50mm
A recirculating shrink tunnel heats the air inside the chamber and circulates it continuously around the product using a fan system. The heated air moves through the chamber in a controlled circulation pattern — flowing over and around the product, transferring heat to the film, and then being drawn back through the heating element to be reheated and recirculated. The air velocity inside a recirculating tunnel is relatively low — the heat transfer from air to film happens primarily through sustained contact with warm air rather than high-velocity impingement.
The air flows gently around the product at low velocity, warming the film surface gradually and evenly as the product travels through the chamber.
A jet air shrink tunnel delivers heated air to the product through a series of nozzles at high velocity. The high-velocity hot air jets impinge directly on the film surface, transferring heat rapidly and intensely to the film at the specific points where the air jets make contact. The air jets are typically arranged in a pattern that covers the full product surface — ensuring complete coverage from all angles as the product moves through the chamber.The air flows gently around the product at low velocity, warming the film surface gradually and evenly as the product travels through the chamber.
Choose a recirculating shrink tunnel if your products are lightweight, your packaging carries high-quality print that must be preserved, or your priority is a smooth even finish at a lower cost and energy consumption.
Choose a jet air shrink tunnel if your products are heavy or rigid, your film is thick gauge, you need a very tight close-contour wrap, or your production speed requires a higher belt speed than a recirculating tunnel can support at the required shrink quality.
A digital temperature controller maintains the chamber at a precise set temperature throughout the production run — compensating for door opening, product loading variations, and ambient temperature changes to produce a consistent shrink quality on every product from the first to the last.
The open mesh or rod belt design allows hot air to circulate underneath the product and shrink the bottom film surface to the same degree as the top and sides — producing a uniform finish on all faces. The open belt structure also prevents film adhesion to the belt surface during shrinking.
The machine is equipped with a transparent viewing window, allowing operators to easily monitor the shrink process in real-time. This feature provides full visibility of the packaging and shrink performance, ensuring quality control without the need to open the machine, enhancing both efficiency and safety during operation.
Designed to connect directly to the outfeed of any L-Sealer or Side Sealer via a standard connecting conveyor — forming a complete integrated shrink-wrap line. Belt speed synchronisation between the sealer and the tunnel ensures products enter the tunnel at the correct spacing and rate for consistent heat exposure on every product.
Available in multiple tunnel widths and heights to accommodate products ranging from small cosmetics and food items to large industrial bundles and multi-pack cases. Tunnel aperture dimensions are confirmed at the time of order based on the largest product format the tunnel needs to handle.
