Buying guide
Capping machine torque: what to check before choosing a capper
Torque is only one part of successful capping. The cap, liner, bottle neck, bottle support and feed route all influence the final result.
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Capping machine torque: what to check before choosing a capper.
Torque is only one part of successful capping. The cap, liner, bottle neck, bottle support and feed route all influence the final result.
Buying guide
Specify the capper around the closure, bottle and production target.
Lancing can help shortlist practical capping machinery after reviewing cap type, neck finish, bottle stability, output target, torque requirement and the way caps are presented to the machine.
Useful details for a quote
- Cap diameter, height and closure type
- Bottle height, diameter, shape and material
- Target bottles per minute or per hour
- Manual cap placement or automatic cap feeding
- Existing filler, labeller, conveyor or line layout
Selection notes
What affects the correct capping route?
Why torque is not just a number
Two caps with the same measured torque can perform differently if the liner, thread, bottle material or neck finish changes. The correct target should come from the closure specification and practical sample checks.
Common causes of inconsistent torque
Bottle movement, cap misalignment, worn tooling, incorrect chuck fit, poor cap presentation and unstable containers can all cause variation even when the torque setting appears correct.
What to send for advice
Send cap and bottle samples, target torque if known, product type, current rejects and how caps are placed. This helps identify whether the issue is machine type, tooling, line handling or packaging compatibility.
Next step
Send bottle and cap information before final machine selection.
Photos, dimensions and target output help identify the most likely capping route. Physical samples are normally the best way to confirm tooling, cap feeding and bottle support.
FAQ
Common questions
How do I know the correct cap torque?
Use your closure supplier guidance, product requirement and sample testing. The capper should be set to the practical target for your specific pack.
Will higher torque stop leaks?
Not necessarily. Too much torque can damage liners or threads. Leaks can also come from neck finish, liner choice, filling contamination or cap alignment.
Can torque be checked after capping?
Yes, production teams often use cap torque testing as part of quality control, alongside visual and leak checks.