Shrink Tunnel Packing Machine

A shrink tunnel machine, also known as a heat shrink tunnel, is a device used in packaging processes to apply shrink film around products. Here's a quick overview:

A shrink tunnel machine uses heat (from electric elements or steam) to shrink plastic film—usually polyethylene, polyolefin, or PVC—tightly around a product. The film is first loosely applied (often by a shrink wrap sealer), then the product enters the tunnel on a conveyor. Inside, hot air or steam causes the film to shrink and conform snugly to the shape of the item.

• Tunnel chamber: The heated zone where the shrinking happens.

• Conveyor belt: Moves products through the tunnel.

• Heating elements or steam jets: Provide the thermal energy.

• Air circulation fans: Ensure even heat distribution.

• Bundling multiple products (like water bottles or cans).

• Sealing boxes, trays, or cartons.

• Wrapping retail items for tamper-evidence or visual appeal.

1. Electric shrink tunnels – Common, precise heat control.

2. Steam shrink tunnels – Often used for shrink sleeve labels.

3. Infrared shrink tunnels – Efficient and uniform heating.

Would you like help choosing the right shrink tunnel machine for a specific application?