What information is needed for Shrink tunnel temperature problems?

Send product dimensions, photographs, target output, film preference, available utilities and how the pack will be loaded or transferred through the shrink wrapping process.

Can Lancing UK advise on the correct L sealer route?

Yes. Lancing UK can review pack size, film type, output target, footprint and line layout before recommending an L sealer, shrink tunnel or related shrink wrapping machine route.

Does the shrink tunnel need to be specified with the sealer?

For shrink wrapping, the tunnel should be matched to the sealer, film and product so the line can maintain the required output and finished pack quality.

What affects the final quotation?

The quotation depends on machine type, pack dimensions, automation level, film route, heat tunnel size, conveyors, installation requirements and support expectations.

Tunnel troubleshooting

Shrink tunnel temperature problems

Shrink tunnel temperature problems can appear as wrinkling, loose film, scorching, distortion or uneven pack finish. The cause may be temperature, airflow, conveyor speed, film gauge, perforation or pack spacing.

Get specification advice View machines

Who this page is for

This page is for operators diagnosing poor shrink finish after the L sealer or sleeve sealer stage.

This topic is useful when the buyer search intent is heat tunnel fault diagnosis. The aim is to understand product fit, reduce specification risk and prepare a better enquiry for Lancing UK.

Specification checks

Set temperature versus actual tunnel behaviour
Conveyor speed and dwell time
Airflow vents and circulation
Film type and film thickness
Pack spacing through the tunnel

Questions to answer before a quote

Is the film loose or over-shrunk?
Is one side shrinking more than the other?
Has the conveyor speed changed?
Is the pack heat sensitive?

How Lancing UK can help

Lancing UK can review product sizes, pack photos, film choice, target output and site layout before recommending a suitable L sealer, heat tunnel, chamber sealer, sleeve sealer or related shrink wrapping machine route.

For the most accurate advice, send dimensions for the smallest and largest pack, expected packs per minute, whether the product is manually loaded or conveyor fed, and any space or utility restrictions on site.

FAQ