L-sealers
L-sealers seal film around a product before it passes through a shrink tunnel. The correct machine depends on pack size, film material, speed and whether loading is manual or automatic.
How to specify L-sealers.
Use these points to prepare a stronger machinery enquiry and narrow the equipment range before quotation.
Best-fit applications
L-sealers are most useful when the machine format is matched to the product, pack and operator process rather than chosen from headline speed alone.
- individual products or grouped packs needing shrink film wrapping
- manual and semi-automatic wrapping areas
- lines where an L-seal and heat tunnel create the final pack
Details to confirm before selection
Accurate specification starts with samples, real production targets and a clear view of what happens before and after this process.
- product dimensions and maximum film width
- film type, thickness and seal strength
- operator loading method, output and tunnel compatibility
Build a practical enquiry
Send product details, filled and empty pack samples, photos or videos of the current process, expected output and any site restrictions. This helps identify whether a standard machine, tooling change or integrated line is the correct route.
- Include product and pack photos where possible.
- State current output, target output and operator involvement.
- Confirm whether the requirement is standalone equipment or line integration.
L-sealers FAQs
What is an L-sealer used for?
It creates an L-shaped seal around the product before film is shrunk tightly in a tunnel.
Can irregular products be wrapped?
Sometimes, but pack shape and stability affect film presentation and seal quality.
Is a shrink tunnel required?
Yes, the L-sealer seals the film; the tunnel provides the final shrink finish.
Continue comparing suitable options.
Use these related pages to narrow the machinery type and prepare a more accurate enquiry.
Heat shrink tunnels
Heat shrink tunnels for shrink sleeves, tamper bands and film packaging applications with electric heat tunnel and line integration advice.
Shrink wrapping machines
Shrink tunnels, L-sealers and sleeve wrapping options.
Shrink wrapping machinery
L-sealers, tunnels, sleeve sealers and shrink packaging equipment.