Question guide
Why do bottle caps loosen after capping?
Investigate torque retention, package relaxation, storage conditions and evidence before changing machine force.
Read the answer →Question and answer hub
Capping machine questions for buyers and engineers.
Direct answers and practical decision guidance covering closure behaviour, cap feeding, torque, line integration, trials and production troubleshooting.
Start with the problem
Choose the question that matches the decision or fault in front of you.
Each guide gives an answer first, then explains the variables, evidence and next step. The pages complement the existing machine, application and buying guides rather than replacing them.
Question guide
How does induction sealing affect capping?
Coordinate cap application, liner identity, bottle land condition and downstream sealing checks.
Read the answer →Question guide
How do you prevent cap scuffing and marking?
Trace cosmetic damage through feeder, chute, placement and tightening contact points.
Read the answer →Question guide
How do you cap bottles with handles or offset necks?
Select orientation, guides, clamps, pucks or indexed handling around the real filled pack.
Read the answer →Question guide
How should capping machine settings be documented?
Connect recipes, tooling, physical adjustments and first-off approval in one controlled format record.
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How do you qualify a new bottle and cap format?
Move from drawings and representative batches through feasibility, acceptance and production release.
Read the answer →Question guide
How does product on the bottle neck affect capping?
Separate filler residue, neck condition and tooling contamination from machine-setting faults.
Read the answer →Buyer tasks
Use questions to move from symptom to evidence.
| Buyer task | Useful starting point | Evidence to prepare |
|---|---|---|
| Select a capping route | Closure technology comparison | Bottle, closure, liner, output and line context. |
| Investigate a quality fault | Capping troubleshooting guide | Accepted and rejected samples, batch identity, settings and timing. |
| Plan an automatic line | Controls and integration | Layout, signals, accumulation, inspection and recovery logic. |
| Prepare a quotation | Quote checklist | Representative samples, dimensions, target output and format list. |
| Approve a new format | New-format qualification | Drawings, packaging batches, trial plan and acceptance criteria. |
Next step
Send the evidence that changes the answer.
A useful capping recommendation depends on the actual closure, container, product condition, output and line. Send representative samples or clear photographs and drawings so Lancing can identify the most sensible next check.
Additional fault and closure questions
Investigate stripped threads and hinged dispensing caps.
Why do bottle-cap threads strip?
Separate damaged components, cross-threading, bottle rotation and tool slip before increasing the capping setting.
Read the fault guide →How do you cap flip-top and disc-top closures?
Protect the hinge and lid while applying the threaded base and proving automatic feeding, tooling contact and bottle support.
Read the closure guide →