Pack width and height
Controls the sealing and tunnel aperture required for stable product movement.
Technical specification
LU-SPL4 sleeve sealer and shrink tunnel reference data
Use these values as a starting point only. Final specification, options and utilities should be confirmed against your pack format and site layout.
| Parameter | Value |
|---|---|
| Voltage | 220V, 50–60Hz |
| Power consumption | 2 kW |
| Packing speed | 0–6 packs per minute |
| Bottle size range | Diameter 60–120 mm; height 100–330 mm |
| Max package size | 400 × 120 × 330 mm |
| Min package size | 240 × 120 × 100 mm |
| Payload capacity | Up to 20 kg |
| Film roll width | Max 560 mm |
| Film thickness | 0.03–0.25 mm |
| Applicable film type | PE shrink film only |
| Machine dimensions | Approx. 2150 × 1200 × 2020 mm |
| Machine weight | Approx. 350 kg |
| Tunnel model | LU-BSPN6040 |
| Tunnel dimensions | Approx. 1800 × 600 × 400 mm |
| Conveying speed | 0–15 metres per minute |
| Tunnel film compatibility | PVC / POF / PE |
| Package dimensions | Approx. 2880 × 930 × 1500 mm |
| Package weight | Approx. 350 kg |
What changes the specification?
Variables that affect sleeve sealer selection
Film type and thickness
Changes sealing temperature, tunnel performance and final pack strength.
Output requirement
Determines conveyor speed, infeed handling and whether semi-automatic or automatic operation is appropriate.
Specification support
Film, tunnel and quote checklist
Use these pages to prepare technical details before requesting a quote.
Speak to Lancing UK
Need help choosing the right sleeve sealing machine?
Send your pack size, bundle format, film type and target output. We will recommend a sleeve sealer, heat tunnel and conveyor layout that suits the production requirement.
High-intent sleeve sealer searches
More ways to find the correct sleeve sealing route
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Alternative sleeve wrapper terminology and buyer route.
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Can multipack wrapping and collation details.
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Tray pack sleeve sealing and tunnel specification.
Using the reference data
Convert listed dimensions into an agreed production specification
The published LU-SPL4 figures define a reference range, not automatic approval for every product inside that range. Final selection should record the tested pack, film, settings, sustained output and acceptance criteria so the production team knows exactly what has been demonstrated.
What the specification confirms
The listed data covers the bottle guidance, pack envelope, load, film roll width, film thickness, wrapper film route, machine dimensions, reference tunnel and tunnel conveyor speed. These figures are useful for early layout and compatibility checks.
What still requires confirmation
The supplied reference does not publish a separate seal-bar working length, tunnel electrical load for the final project, compressed-air requirement, temperature range, airflow setting or guaranteed production rate for a named pack. These items must be confirmed in the final quotation, machine documentation or witnessed sample trial rather than inferred.
| Reference item | Do not assume | Confirm with |
|---|---|---|
| 0–6 packs per minute | That every format runs continuously at six packs per minute. | Agreed product, bundle pattern, film, infeed method and sustained run conditions. |
| Maximum film width 560 mm | That any bundle below a simple circumference calculation will seal correctly. | Real film path, overlap, seal position and sample pack. |
| 0.03–0.25 mm film thickness | That thickness alone guarantees strength or shrink quality. | Film grade, pack weight, edges, shrink characteristics and handling trial. |
| Pack load up to 20 kg | That every 20 kg shape is stable on transfers and through the tunnel. | Representative weight, base support, conveyor transfer and cooled-bundle handling. |
| Tunnel speed 0–15 m/min | That belt speed alone determines output or finish. | Temperature, airflow, dwell, spacing, tunnel load and accepted appearance. |
Energy, airflow and process records
Tunnel energy use is affected by installed load, warm-up, heat loss, operating temperature, airflow, belt speed, pack spacing and utilisation. Do not estimate production energy from the conveyor-speed range. The final project should confirm utilities and record the accepted settings for each SKU, including any cooling requirement after the tunnel.
Specification FAQs
How to interpret the LU-SPL4 data
Are the listed dimensions a guaranteed operating range?
They are reference values. Suitability still depends on pack geometry, stability, film, transfers, tunnel settings and the required finished-pack standard.
Is 2 kW the complete installed load for every project?
The page lists 2 kW as the reference power-consumption figure. The complete installed load and site supply for the supplied wrapper, tunnel and any conveyors must be confirmed in the final quotation and electrical documentation.
Why is the seal-bar dimension not shown?
A separate verified seal-bar working dimension was not available in the supplied first-party reference data. Lancing should confirm the seal opening and cut position from the real bundle and film path.
Can tunnel conveyor speed be used to calculate packs per minute?
Not by itself. Pack length, spacing, dwell, heat, airflow, infeed cycle and cooling all affect a practical output.
What does PE film only mean in the wrapper table?
It means the listed wrapping section is specified for PE shrink film. Although the reference tunnel lists PVC, POF and PE compatibility, alternative wrapper film routes require separate confirmation.
Which values should be recorded after a successful trial?
Record the product, bundle pattern, film, guide positions, seal settings, tunnel temperature and airflow, belt speed, spacing, output and the approved finished-pack standard.
Turn data into an agreed duty
Confirm the unlisted utilities, seal area and trial conditions
Send the production pack and site requirements so the reference figures can be converted into a documented project specification.
Specification control
Separate catalogue reference, final project scope and witnessed trial evidence
A useful machine specification makes clear which figures are published reference data, which details belong in the final quotation and drawing, and which performance points can only be approved with the real product and film.
| Evidence level | What can be recorded | How it should be used |
|---|---|---|
| Published machine reference | LU-QZD7040S wrapper: listed 0–6 packs per minute, bottle diameter 60–120 mm, bottle height 100–330 mm, pack range 240 × 120 × 100 mm to 400 × 120 × 330 mm, payload up to 20 kg, PE film 0.03–0.25 mm and maximum film width 560 mm. | Use these figures to screen an enquiry, while recognising that geometry, stability, film and line conditions can still make a nominally compatible pack unsuitable. |
| Final quotation and drawing | Exact line direction, working height, supplied tunnel and conveyors, guarding, controls, electrical and pneumatic requirements, change parts, film-roll arrangement, seal opening and cut position. | Use the approved project documents as the supply boundary. Do not infer an unlisted seal-bar working dimension or complete installed load from a generic description. |
| Witnessed format trial | Production-weight samples, bundle pattern, approved film, sustainable run rate, guide and control settings, shrink finish, cooled-pack handling and restart behaviour. | Use the signed result as the repeatable operating standard for each approved format. |
Create one approval record for every important format
The record should identify the product code, individual dimensions and mass, collation pattern, tray or pad, finished bundle dimensions and weight, film supplier and grade, width, thickness, roll and core details, seal setting, tunnel controls, conveyor setting, spacing and cooling arrangement. Add photographs of the accepted seal area and cooled pack where project evidence is available.
Acceptance criteria should be observable: the products remain in the agreed pattern; the seal is continuous; film does not split or expose sharp edges; the pack is not heat-damaged; and the cooled bundle survives its intended transfer and handling. A nominal machine speed without these conditions is not a complete performance definition.
Specification evidence hierarchy
Keep published data, agreed project scope and witnessed results separate
This prevents a reference figure being mistaken for a guaranteed result on an untested pack. Each layer has a different purpose and should be controlled in the project record.
1. Published reference
Verified model data such as the listed pack envelope, film range, output range and tunnel conveyor-speed range.
2. Agreed project specification
The selected options, utilities, layout, formats, line interfaces, documentation and acceptance scope for the order.
3. Witnessed evidence
Trialled products, film, settings, sustainable running condition, finished-pack checks and recorded exceptions.
| Decision | Use this resource |
|---|---|
| Confirm PE roll data and approval | PE shrink film roll specification guide |
| Define a representative FAT | FAT and sample trial guide |
| Define cooled-pack acceptance | Shrink bundle quality acceptance guide |
| Confirm site utilities and access | Site preparation and utilities guide |
| Prepare fault evidence | Sleeve sealer troubleshooting guide |
Specification questions
Questions engineers ask when defining the operating envelope
A useful specification separates verified model data from the application values that still need samples, drawings and witnessed trials.
Which dimensions define the real sleeve-sealer pack envelope?
Use the complete bundle length, width and height in the orientation presented to each machine section, including trays, pads, protrusions and the movement that occurs during transfer.
Do not rely only on individual product dimensions. The seal station may see a different effective profile from the tunnel or discharge because the bundle is pushed, compressed or supported differently. Record smallest and largest values for every required format.
Use the specification checklist.
How is seal-bar clearance different from film width?
Seal-bar clearance is the mechanical space needed to pass and seal around the pack, while film width is the material dimension needed to wrap the bundle with the intended overlap and side openings.
The two are related but not interchangeable. A film roll may fit the unwind while the pack still conflicts with the jaw or transfer opening, and a wide mechanical opening does not prove that the available film width will create the required sleeve. Confirm both from the actual pack and film path.
Review the PE film roll specification guide.
What determines the required shrink-tunnel aperture?
The tunnel aperture must accommodate the moving wrapped pack with safe clearance while supporting the airflow, dwell and conveyor arrangement needed for the approved film and bundle.
Include temporary film lift, tray lips, product movement and guide hardware rather than using a static finished-pack measurement alone. Oversizing also needs engineering review because chamber volume, airflow distribution and heat load remain part of the process.
Read the shrink tunnel selection guide.
How should several SKUs be represented in one machine specification?
Use a format matrix that lists each SKU, bundle count, orientation, pack envelope, weight, support, film, target output and any unique changeover or acceptance requirement.
Mark the format that sets each boundary rather than assuming one largest SKU is worst in every respect. The matrix should also identify common parts, physical adjustments, stored settings and first-off checks so the quoted scope is clear.
Open the multi-format sleeve sealer guide.