Bottle footprint
Narrow, tall or lightweight bottles can tip or twist under torque if they are not supported correctly.
Bottle stability
Capper for unstable bottles
Unstable bottles are one of the main reasons a capping project needs more handling detail. This guide explains what to check before choosing a screw capper or spindle capper.
Guide design
Rails, side belts and change parts may be needed to hold the container square during tightening.
Sample testing
Real samples show whether the bottle can survive the torque and conveyor handling route.
Shortlist route
Which route is most likely to fit?
Use these checks to decide whether the project is a semi-automatic, compact or automatic inline capping route.
| Project signal | Likely route | Why it matters |
|---|---|---|
| Tall narrow bottles | Side-belt support and guides | Helps prevent tipping and rotation during tightening. |
| Soft or lightweight bottles | Gentle handling checks | Prevents deformation and grip problems. |
| Shaped containers | Project-specific guides | Keeps the closure aligned while allowing changeover between formats. |
Related routes
Move to the most relevant capping page
FAQ
Questions buyers ask
Can unstable bottles be capped automatically?
Often yes, but the handling design becomes just as important as the capping head.
What sample details matter?
Bottle height, diameter, material, fill level, closure type and label area can all affect handling.
Should I choose a slower capper?
Sometimes slower controlled handling performs better than a higher-speed route that cannot stabilise the bottle.
Ready to shortlist?
Send the bottle, cap and target output.
Lancing UK will help identify whether you need a semi-automatic capper, compact capper, inline spindle capper or specialist cap feeding route.