Bottle packs need stable handling
Bottles can be tall, round and heavy when filled. A heat shrink tunnel for bottles must maintain pack stability from the sleeve sealer discharge through the tunnel and onto the outfeed conveyor.
The tunnel must also apply heat consistently so the film tightens around the group without distorting the pack or dragging bottles out of alignment.
What affects tunnel choice
Bottle height, bottle diameter, pack count, tray use and film thickness all affect tunnel specification. A tray pack behaves differently from a trayless bottle bundle, and the tunnel settings may change between water bottles, dairy drinks and other containers.
For higher output lines, pack spacing and conveyor handover are just as important as temperature. If products arrive too close together, the tunnel may not deliver a consistent shrink finish.
Preparing a bottle shrink wrapping enquiry
Send a photograph of the bottle, the proposed pack count, finished pack dimensions, tray details and target output. If the bottle is unstable or the cap shape affects stacking, mention this before the specification is prepared.
Lancing can then consider the sleeve sealer, tunnel aperture, conveyor layout and infeed route as a complete bottle wrapping system.
Quote route and specification checklist
| Bottle detail | Reason |
|---|---|
| Bottle diameter and height | Determines pack width, height and tunnel aperture. |
| Pack count | Affects bundle stability and film width. |
| Tray or trayless | Changes support through tunnel and outfeed. |
| Target output | Influences tunnel length and belt speed. |