Automatic L sealer machines
Related guidance for comparing shrink wrapping machinery, film, output and installation requirements.
Automatic shrink wrapping specification
Automatic shrink wrapping machine UK
An automatic shrink wrapping machine should be specified around the product, film, pack stability and required output rather than around a headline machine size alone. For many cartons, boxed goods, books and retail packs the correct route is an automatic L sealer feeding a matched heat tunnel. For grouped packs, bottles or trays, a sleeve sealer may be more appropriate.
What to check before choosing an automatic shrink wrapper
- Product width, length and height, including the tolerance of the largest product.
- Film type, usually POF or PE depending on presentation, strength and pack format.
- Target output in packs per minute and how products will be spaced on the infeed.
- Whether the product can transfer cleanly into the heat tunnel without tipping or bunching.
- Available power, compressed air, conveyor height and space for operator access.
Automatic L sealer or sleeve sealer?
An automatic L sealer is usually selected for fully enclosed presentation shrink wrapping around individual cartons, printed packs and boxed products. A sleeve sealer is usually considered for tray packs, multipacks and heavier grouped products where the pack can be held by a shrink sleeve rather than a fully enclosed bag.
Why the heat tunnel matters
A strong seal is only part of the result. The tunnel must apply controlled heat across the pack so the film shrinks evenly without dog ears, burn marks or loose corners. Tunnel aperture, belt speed and airflow need to match the film and product.
Specification summary
For a reliable recommendation, send product dimensions, photographs, required output, film preference, available floor space, power and compressed air details. Lancing UK can then check the correct machine aperture, heat tunnel size, conveyor layout and operator access before quoting.
FAQ
Automatic shrink wrapping machine UK FAQs
What is the best automatic shrink wrapping machine for cartons?
For cartons and boxed retail products, an automatic L sealer with a matched heat tunnel is often the correct starting point because it creates a fully enclosed shrink pack.
Do I need a heat tunnel with an automatic L sealer?
Yes. The L sealer creates the film bag and seal; the heat tunnel shrinks the film to produce the final tight pack finish.
Can one automatic shrink wrapper handle different product sizes?
Usually yes, within the machine aperture and film-width limits, but changeover settings and infeed spacing should be checked before purchase.
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