Automatic L-sealer machines
For higher throughput carton and retail pack shrink wrapping.
Lancing UK shrink wrapping machinery
Carton shrink wrapping machine
L-sealer and heat tunnel systems for boxed products, printed packs, books and retail cartons.
Applications
Why cartons suit L-sealers
Cartons and boxed products are usually stable, square-edged and suitable for neat film presentation. An L-sealer can create a clean film enclosure before the heat tunnel shrinks the film tightly around the pack.
Finish
Presentation quality matters
For retail cartons, seal placement, film clarity and tunnel settings affect the finished appearance. Correct product spacing and film width help reduce wrinkles and excess film at the corners.
Products
Typical carton applications
- Food cartons and boxed goods.
- Cosmetic and personal care boxes.
- Books, printed packs and stationery.
- Electronics boxes and accessories.
Quick answers
Carton shrink wrapping machine FAQs
What machine wraps cartons in shrink film?
An automatic L-sealer with a heat tunnel is a common route for carton shrink wrapping.
Can different carton sizes run on one machine?
Often yes, within the machine aperture and film-width range, with changeover settings.
What film is used for carton shrink wrapping?
POF shrink film is commonly used for presentation carton work.
Related machinery
Useful next pages
Heat tunnels
Match tunnel aperture, airflow and conveyor speed to the film and pack.
Buyer guide
Check pack dimensions, film type, speed and site utilities before quoting.
Include the carton contents in the sample assessment
Use the carton in its intended filled condition where practical. An empty carton can behave differently from the finished sales pack during conveying, sealing and shrinking. Describe any internal movement, weak panel or sensitive contents that should be considered during the review.
Mark the display face and the position of printed information before trialling the wrap. Keep the agreed appearance criteria with the sample so that seal position, corner film and visible creases can be discussed consistently across different carton sizes.
- Carton variation
- Include normal board and closure variation, especially the least rigid or tallest carton. State whether lids, tabs or projecting parts need particular attention.
- After cooling
- Inspect the closed pack after the agreed cooling and handling interval. Record distortion, film condition and visibility of the carton graphics separately.
Can shrink film compensate for a poorly formed carton?
Do not assume that it will. Assess the carton construction and contents as part of the pack design before relying on wrapping to hold an unstable pack together.