L sealer machine UK
Compare automatic, semi-automatic and tunnel-based L sealer routes.
Shrink tunnel guide
Shrink tunnel size guide
The shrink tunnel must be matched to the largest pack, output target, film type and desired finish.
When this search applies
The shrink tunnel must be matched to the largest pack, output target, film type and desired finish.
- Tunnel chamber dimensions
- Conveyor width and height
- Output and dwell time
- Pack spacing through the tunnel
Size and dwell time
A tunnel that physically accepts the pack may still be too short for the required output or finish. Dwell time inside the heated area is important.
Conveyor width
The conveyor must carry the product reliably while leaving enough clearance for film and air movement.
Information to send for an accurate recommendation
| Pack dimensions | Largest and smallest product sizes, pack weight, stability and whether products are single cartons, bundles or trays. |
|---|---|
| Required output | Target packs per minute, daily volume, shift length, changeover frequency and whether future output may increase. |
| Film and finish | Preferred shrink film if known, presentation requirements, seal position, retail display needs and barcode visibility. |
| Line layout | Available floor space, infeed method, conveyor height, power, compressed air and whether a shrink tunnel is needed. |
FAQ
Shrink tunnel size guide FAQs
Can a small tunnel run large packs slowly?
Sometimes, but finish and throughput may suffer.
Does tunnel length affect output?
Yes. Longer tunnels can support dwell time at higher conveyor speeds.
Do I need a tunnel for chamber machines?
Chamber sealers combine sealing and shrinking, so a separate tunnel is not normally required for that route.
Related pages
Next steps for shrink wrapping machinery buyers
Use these pages to compare L sealers, shrink tunnels, film route and quotation requirements.
Automatic L-sealers
Review automatic sealing and shrink wrapping options for higher output lines.
L sealer with shrink tunnel
Understand when a combined sealer and tunnel route is the best fit.
Shrink wrapping machines UK
Compare L sealers, chamber machines, tunnels and wider packaging routes.
Specification checklist
Prepare product and line details before requesting a quotation.
Get a quotation
Send pack sizes, output target and film needs to Lancing UK.