Product control
The pack must not rotate, rock or change speed between heads. Heavier or asymmetrical products may need longer stabilisation contact or more controlled spacing.
Multi-panel labelling
Three-side and multi-panel labelling machines
Configuration-led labelling systems for packs that need a third label face, top label or specialist sequence beyond a standard twin-side machine.
Configuration-led systemLancing UK support
Configuration-led system
When two opposing label heads are not enough
A standard twin-side labeller is designed around two labels on opposite faces. A multi-panel project adds another application point: a third side, a top label, a neck label or a separate information panel. The extra head must be planned with the product path, label order and available contact area rather than added as an isolated accessory.
Separate label heads allow each label to have its own roll, sensor, vertical position and dispense timing. The pack still needs one stable datum throughout the sequence, so guides, side belts, top hold-down and product spacing become more important as the number of application points increases.
- Front, back and third-side labels on rectangular or shaped containers.
- Front and back labels with a top, shoulder or neck label where the pack permits.
- Different label sizes, materials or winding directions on one product.
- Integration with coding, label-presence checks or a downstream vision system.
Face-by-face planning
Map the label sequence before selecting the machine layout
The engineering brief should describe every label face, the order of application and the point at which each label can be pressed onto a stable surface.
| Opposing front and back faces | Usually handled by two side-mounted applicators. Define independent label datums and wipe-down for each face. |
|---|---|
| Third side or narrow panel | Check whether the panel remains accessible after the first labels are applied and whether the container must be turned or re-oriented. |
| Top, shoulder or neck | Confirm the labelable area, curvature, closure overhang and whether a separate hold-down or application tool is needed. |
| Top and underside faces | Normally requires a split-belt or transfer arrangement rather than a conventional side-head layout. |
| Variable-data label | Define whether the data is pre-printed, printed inline or verified after application. The print field and camera view affect head position. |
Engineering sequence
What changes when a third application head is introduced?
Every additional head adds a timing, access and changeover requirement. A useful trial checks the complete sequence rather than demonstrating each head separately.
Label-head access
Operators need room to load rolls, thread liners, clean sensors and reach adjustment points without disturbing another head.
Recipe coordination
A format change may involve several roll specifications, sensor settings, head positions and delay values. Record the complete format, not only one label.
Wipe-down order
The first label must be secure before the pack reaches another belt, guide or applicator. Fresh label edges should not be lifted by subsequent contact.
Coding and inspection
Printed data, barcode orientation and camera line-of-sight should be agreed before applicator positions are fixed.
Fault recovery
Define what happens if one head has no label, a roll ends or a product gap appears. The response may be line stop, reject or controlled recovery.
Trial checklist
Evidence to obtain before approving a multi-panel route
- Provide production containers in the filled and closed condition used at the labeller.
- Mark all nominal label positions and fixed pack datums on a drawing.
- Supply a production roll for every label head, including the final liner, gap and unwind direction.
- Run the complete sequence at the agreed normal product spacing.
- Measure each label independently and record skew, wrinkles, bubbles, edge lift and missed applications.
- Include starts, stops, roll changes and at least one representative format change.
- Check coding, inspection and reject behaviour where included in the project scope.
Configuration note: “Three-side” can describe several very different layouts. A third label on a rectangular bottle is not the same as a C-wrap label over a carton or a top-and-bottom application. Send a marked-up pack drawing before a machine route is selected.
Related routes
For two opposing labels, compare the automatic twin-side labeller. For upper and underside labels, see the top and bottom labelling machine. For a third neck or shoulder label, use the front, back and neck application guide.
Discuss a multi-panel labelling layout
Send a marked-up container drawing, production label rolls, pack samples, output requirement and details of any coding or inspection stage. Lancing can review the application sequence and confirm which machine route should be trialled.