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Automatic Both Side Sticker Labeling Machine

Cooling Tunnel and Warmer

The Cooling Tunnel and Warmer is an essential auxiliary machine used in shrink sleeve labeling and packaging lines to stabilize containers after heat exposure. Manufactured by Magic SPM, this system helps cool or gently warm containers after passing through a steam or electrical shrink tunnel, ensuring perfect sleeve setting and container integrity.

It is widely used in high-speed packaging lines where temperature control is critical to maintain label quality, prevent container deformation, and ensure smooth handling in downstream processes such as labeling, inspection, or packing.

Machine Overview

After shrink sleeve application, containers often exit the shrink tunnel at elevated temperatures. The Cooling Tunnel and Warmer regulates this temperature by circulating controlled air or cooling media over the containers.

  • Cooling mode helps set the shrink sleeve firmly and prevents distortion

  • Warming mode ensures gradual temperature normalization for sensitive containers

This process improves label finish, container stability, and overall packaging line efficiency.

Applications

The Cooling Tunnel and Warmer is used in:

  • Shrink sleeve labeling lines

  • Beverage bottling plants

  • Food packaging units

  • FMCG production facilities

  • Cosmetic and personal care packaging

  • Pharmaceutical packaging lines

​Frequently Asked Questions (FAQ)

What is the purpose of a cooling tunnel in packaging lines? A cooling tunnel is used to cool containers after shrink sleeve application to set the sleeve properly and prevent container deformation.

Why is a warmer used after shrink sleeve labeling? A warmer helps gradually normalize container temperature, especially for sensitive packaging materials, ensuring stable handling downstream.

Is this machine required in all shrink sleeve lines? While not mandatory, it is highly recommended for high-speed lines and applications requiring superior sleeve finish and container stability.

Can it be integrated with existing shrink tunnels? Yes, the Cooling Tunnel and Warmer is designed to integrate seamlessly with steam and electrical shrink tunnels.

Does Magic SPM offer customization? Yes, Magic SPM provides customized solutions based on container type, production speed, and line layout.

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