Stabilise presentation
Guide, flatten or space pouches so the inspection area is repeatable.
Pouch & sachet seals
Detect folded, contaminated and incomplete pouch seals in-line
Build a controlled inspection point around flexible packaging, with handling that presents each seal consistently to the camera.
The inspection challenge
Flexible packs need inspection and handling designed together
A pouch can flex, twist and change shape as it travels. Reliable inspection starts with controlled presentation, then uses lighting and algorithms suited to the seal material, product and expected defect library.
- Top, side and end-seal inspection
- Product trapped in the seal area
- Fold, crease and wrinkle detection
- Seal-width and continuity checks
- Registration or cut-position checks
- Automatic failed-pouch rejection
Production outcomes
Designed to make every decision useful
Define actionable faults
Classify defects against agreed tolerances rather than chasing harmless variation.
Link faults to batches
Record counts and defect categories for production review where required.
Application framework
What the system can include
Final scope follows trials and a line survey. The table shows the main engineering considerations for this inspection type.
Send us your pack detailsPack formatsStand-up pouches, pillow packs, sachets, stick packs and premade pouches
Inspection regionTop seal, fin seal, side seals, end seals or defined critical zones
PresentationBelts, guides, vacuum hold-down, flattening or indexed fixtures as required
Reject optionsAir blast, pusher, drop flap, belt withdrawal or line-specific mechanism
A controlled route to production
From sample pack to validated inspection point
Reliable inspection begins with realistic defects and finishes with the line proving that the correct failed pack was removed.
Define the fault
Agree the pack, line speed, critical seal area and pass/fail tolerance.
Prove the image
Trial representative good packs, known failures and normal production variation.
Engineer the station
Specify handling, optics, lighting, controls, guarding and reject method.
Integrate & validate
Install, commission and test the complete inspection and rejection sequence.
Practical answers
Seal inspection questions
Clear answers before you invest in an in-line inspection project.
Can the system see product trapped in a transparent seal?
Often, yes. Contrast and lighting trials determine whether visible contamination can be separated reliably from normal film texture and print.
What if the pouch moves or wrinkles on the conveyor?
Mechanical handling is part of the inspection design. Guides, belt control, flattening and trigger logic are used to create a repeatable view.
Can the system inspect more than one seal?
Yes. Multiple cameras or views can inspect top, bottom and side regions, provided the line layout offers suitable access.
Application guidance
Separate pouch appearance from hidden seal integrity
Flexible films, artwork and product variation determine whether rules-based, AI, thermal or complementary testing is appropriate.
AI visionClassifying variable seal appearance
Defect evidenceCommon pouch seal faults and method boundaries
Food applicationsVFFS, HFFS, flow-wrap and sachet checks