Shrink Tunnel

Shrink tunnels are auxiliary equipment that can be integrated into the shrink-wrapping processes of large-scale, industrial operations, and they are easily paired with either our L-Bar Sealer, Side Sealer, or Sleeve Sealer line to boost efficiency.

A variable-speed roller conveyor with heavy-duty 1-inch silicone-coated steel rollers moves shrink-wrapped packages into the temperature-controlled shrink tunnel. Inverter-driven heating fans then circulate an even distribution of low-turbulence hot air around the film-wrapped products in order to create a compact shrink-fit.

Once complete, an airflow recovery system helps to save energy by recovering the circulated hot air. A twin-fan cooling system then blows cooler air around the shrink-wrapped products to ensure that the packaging remains stable after shrinking. This is also done to avoid inconsistent shrinkage and burns before products are transported out onto an aluminium pack cooling rack or receiving table.
Shrink tunnels are highly versatile and function as essential components of shrink wrapping machines, enabling the secure packaging of a wide variety of products across multiple industries:

Applications of Shrink Tunnels

• Food products: These shrink wrappers ensure hygienic and secure wrapping for baked goods, frozen foods, and fresh produce using FDA-compliant shrink films.
• Boxes and cartons: Shrink wrapping stabilizes box packaging for better handling and presentation, making it essential for retail and logistics.
• Electronics: Sensitive electronics benefit from shrink wrap equipment that protects them against dust, moisture, and tampering during transit.
• Bags and pouches: Shrink wrapping items like rice, coffee, or pet food improves durability and preserves freshness.

By integrating a shrink wrapper into packaging lines, businesses enhance the overall appearance, durability, and efficiency of their packaged goods.

Our SA Packaging Machinery Range

Our range of L-Bar Sealers, Sleeve Sealers, stretch wrappers, and Side Sealers, as well as Shrink Tunnels are ideally suited to a wide variety of applications and can be customised according to your production needs. All individual modules that comprise our Shrink Wrap range like infeed and discharge conveyors, multi-lane conveyors, dual infeed rails, and pack cooling racks are available in different versions according to your production requirements. Contact us for all your shrink wrap machine, heat shrink tunnel, and shrink tunnel packaging machine needs.

Shrink tunnels can be incorporated into any new or existing packaging operation for the shrink wrapping of daily necessities, healthcare products, stationery, bags and pouches, bottles, cans, jars, blister packs, cartridges, cups, trays, tubes, and vials, tobacco packaging, bottles, workwear, towels, aerosol containers, molded panels, cans, large household goods, timber, paint pots, magazines and newspapers, flat-pack furniture, any round or long products, electronics, etc. Shrink tunnels can also be seamlessly integrated into bottling and canning lines for enhanced packaging efficiency.

Shrink Tunnel Applications for Key Product Categories

Shrink tunnels, as vital components of shrink film wrapping machines, are used across industries to deliver secure, durable, and visually appealing packaging:

• Food items: Products such as baked goods, confectionery, fresh produce, and frozen foods benefit from tamper-proof, hygienic wraps.
• Boxes and cartons: These are stabilized with shrink wrap machines for retail-ready presentation and easier transport.
• Electronics: Delicate devices are safeguarded from environmental factors through precise shrink wrapping equipment.
• Bags and pouches: Coffee, grains, and pet food are sealed using shrink wrappers, ensuring freshness and enhanced shelf appeal.
• Bottles and packs of bottles: Shrink wrapping secures bottles or multipacks, offering a professional finish for beverages, cosmetics, or cleaning products. Shrink tunnels are often paired with cartoning machines for complete packaging solutions.

Businesses can achieve faster production speeds, improved package integrity, and better presentation with the integration of shrink tunnels and complementary equipment.

• Durable and versatile, our shrink tunnels can be used to wrap a huge variety of products across a diverse range of industries
• Low turbulence hot air distribution and recovery system ensures sleek and seamless shrink wrapping with no excess waste generated
• Robust mechanical construction ensures long-term serviceability
• Single and dual chamber format availability to suit smaller packaging operations that run at reduced pack speeds, or more industrial operations that require faster packaging speeds
• Shrink tunnels’ industrial-scale packaging speeds far outweigh handheld heat gun capabilities
• Specially engineered, twin-motor air blowers move more than twice the air volume and rotate at lower speeds compared to conventional blowers
• High insulation ensures maximum thermal efficiency with side and bottom heat chambers
• Welded structural tubular steel chassis with top quality components
• Dual electronic solid-state time proportional temperature controllers allow operators to thermostatically control the chamber temperature and view digital temperature readouts
• Optional aluminium pack cooling rack is fitted with heavy-duty downward locking casters

Integration with Other Packaging Solutions
Shrink tunnels are often paired with other packaging machinery to create complete packaging lines. For example:

• Cartoning machines:Products shrink-wrapped with shrink wrapping machines are automatically loaded into cartons for added protection and distribution. Learn more about our cartoning solutions.
• Bottling and canning lines: Shrink tunnels are ideal for stabilizing bottles or packs of bottles before or after the bottling/canning process. Check out our bottling and canning lines to see how we streamline beverage and liquid packaging.