Clarify the brief
A clear brief improves the quality of machine recommendations.
Label roll specification
Label roll specification guide
Label roll details affect how the applicator is configured. This guide explains core size, reel direction, outside roll diameter, label gap and backing liner information.
Selection intent
Use the guide to reduce specification risk
Early labelling machine research is most useful when it turns a broad idea into a clear technical brief. The aim is to reduce assumptions before a machine is shortlisted.
The strongest enquiries explain the product, pack, label, output and line context together. This makes it easier to compare suitable routes and avoid generic recommendations.
- Capture pack dimensions and label dimensions together.
- Include label material, reel direction and any clear label requirements.
- Explain the current process, desired output and labour constraint.
- List any coding, inspection, conveyor or integration needs.
Avoid hidden assumptions
Pack handling, label material and site layout can affect cost and suitability.
Compare support
Installation, training and spares are part of the buying decision.
Machine routes
Which labelling route should you compare?
Most projects start with the pack shape, label position, material and output. These are the core machine routes to compare before requesting a quotation.
Automatic twin-side labeller
Best for established production where two labels need to be applied consistently in one pass.
Compact twin-side labeller
Useful for smaller footprints, lower-volume production, trials and fast SKU changes.
Top and bottom labelling
Useful for flat packs, cartons, trays, sleeves and products requiring label application to upper and lower faces.
Quote preparation
Information that improves the shortlist
Use the guide to collect the information that normally delays a quotation: pack sizes, label sizes, label material, output, available space and integration points.
When there is uncertainty, samples or short videos of the existing manual process can be more useful than a written description alone.
Useful enquiry details:
- Container height, width, diameter or panel size.
- Label dimensions, material, reel direction and core size.
- Required label position and allowed placement tolerance.
- Target output, current line speed and changeover frequency.
- Photos, samples, drawings or a short video of the current process.
Related pages
Continue comparing front and back labelling options
These pages help connect the search route with machine type, application and buying guide intent.
Enquiry checklist
Core checklist for quote preparation.
How to choose a front/back labeller
Main buying guide.
Products
Compare machine families.
Contact
Send the brief to Lancing UK.
Who should use this label roll specification guide?
It is useful for production managers, operations teams, founders, contract packers and engineers preparing a labelling machinery enquiry.
Will this replace a sample trial?
No. The guide improves the starting brief, but unusual containers, clear labels and premium presentation projects may still benefit from sample testing.
Can Lancing UK review the brief?
Yes. Send the details through the contact form and Lancing UK can help compare suitable labelling machine routes.
Send your front/back labelling brief to Lancing UK
Share the pack, label material, output target and any integration requirement. The team can help you compare the most suitable compact, automatic or top/bottom labelling route.
Label-roll data
Record the production roll in machine-ready terms
Artwork dimensions do not describe how a roll will unwind, sense and dispense. Provide the physical reel data for each label head.
The diagram identifies the fields to record; it does not prescribe universal dimensions.
Minimum information for each roll
- Finished label width and length.
- Backing-paper or liner width.
- Gap between labels and total pitch.
- Core inside diameter and maximum outside roll diameter.
- Inside- or outside-wound construction and the orientation of the printed face.
- Paper, film, metallic or clear face stock, liner type and adhesive reference.
- Any registration mark, perforation or unusual label shape.
Common specification failures
| Wrong winding direction | The artwork reaches the dispense edge upside down or on the wrong face. Confirm with a physical roll-direction drawing or sample. |
|---|---|
| Backing width omitted | The label may fit but the web does not suit the reel path or guides. Record the full liner width. |
| Clear construction not declared | A conventional gap sensor may not distinguish the label from the liner. Supply the production roll for sensor testing. |
| Very small or variable gap | Dispense timing can become unreliable. Measure several pitches and confirm die-cut consistency with the label converter. |
| Roll diameter based on estimate | The reel may foul guards or require more frequent changes. Confirm the actual production outside diameter. |
Two-head projects: record front and back rolls separately. Do not assume they share the same width, gap, core, material or winding direction.
Front/back reel architecture
State whether front and back labels use one alternating reel or two rolls
Core diameter and reel direction are only part of a front/back label specification. The supplier also needs to know whether both designs alternate on one backing web or arrive on two independent reels for separate application heads.
| One alternating reel | Record the leading design, repeating order, pitch around each label, gap, artwork orientation and whether the two labels have different finished dimensions. |
|---|---|
| Two independent reels | Provide a separate specification for each roll, including face stock, liner, core, outside diameter, web width, winding direction, gap and sensor requirement. |
| Job identification | Use a controlled reel reference so operators can match both label rolls and the correct machine recipe during changeover. |
| Inspection | Define whether the line checks label presence, front/back identity, position, barcode and variable print on each face. |
Do not approve artwork without the machine sequence
Artwork proofs can look correct while the production reel is wound in the wrong direction, starts with the wrong design or uses a pitch that the intended sequence cannot process reliably. Confirm the machine path and converter drawing together.
Converter brief
Add converter change control to the label-roll specification
A repeat label order should identify the approved construction, not just the artwork name and roll dimensions. A new liner, adhesive, die-cut tool, laminate or booklet format can alter feeding even when the printed design is unchanged. Keep front and back roll identities separate and ask the converter to notify you of material substitutions.
| Usable quantity | Record labels per roll for each face and whether leaders, tails or marked rejects are included in the supplied count. |
|---|---|
| Splice policy | State whether joins are allowed, how they are marked, whether adjacent labels are usable and what handling the machine supplier has approved. |
| Version identity | Tie product, language, artwork revision, material construction and front/back designation to the order and incoming reel label. |
| Layered construction | For booklets, add maximum thickness, tab and hinge locations, uniform sensing area and allowable pressure zones. |
Can a replacement roll use the same artwork but different backing?
It can be supplied that way, but the material substitution should be reviewed rather than assumed equivalent. Different liner and release behaviour may affect sensing and dispensing. Compare the proposed roll with the approved reference and repeat the relevant checks before releasing it to production.
Continue with reel-change and splice acceptance or expanded-content label qualification when those material conditions are part of the job.