Can Fill Level and Seam Inspection
Can inspection may detect low or high fill, missing ends, raised tabs, seam-profile anomalies, leaks or code defects using technology matched to the container and line. Rejection should be confirmed and recorded.
Practical buyer guide | Updated August 27, 2026 | Final scope must be verified through drawings, samples and agreed acceptance tests
Direct answer
What this decision means for a real filling project
Can inspection may detect low or high fill, missing ends, raised tabs, seam-profile anomalies, leaks or code defects using technology matched to the container and line. Rejection should be confirmed and recorded.
This guide is part of the cluster. Read the hub when the project still needs a broader comparison.
Engineering inputs
Define the duty before comparing equipment
A useful proposal starts from agreed process and package information. These inputs keep suppliers from filling gaps with incompatible assumptions.
Send these details
- Defect catalogue
- Can formats
- Line speed and spacing
- Detection limits
- Reject and data requirements
Require these checks
- Build safe challenge samples
- Test every format
- Verify reject confirmation
- Compare online alarms with manual measurements
Line integration
Connect the choice to upstream and downstream equipment
Project decision record
Turn the topic into four controlled project decisions
A useful guide should change the RFQ, proposal and acceptance plan. Use this record to keep the buyer, equipment supplier and site team on the same basis.
Freeze the application basis
Record defect catalogue together with can formats. Attach drawings, photos and representative samples when dimensions or product behavior affect the design.
Define rated and sustained duty
State line speed and spacing and detection limits. Separate nameplate rate from the sustained result expected with normal stops, changeovers and quality checks.
Control line interfaces
Mark every interface as supplier scope, buyer scope or third-party scope before the order is released.
Approve measurable evidence
Agree how to verify build safe challenge samples and test every format. The test plan should identify samples, duration, instruments, pass criteria and closure evidence.
Comparison sheet
Put every supplier on the same basis
| Decision area | What to state in the RFQ | What to verify |
|---|---|---|
| Product | defect catalogue | build safe challenge samples |
| Package | can formats | test every format |
| Performance | line speed and spacing | verify reject confirmation |
| Operation | detection limits | compare online alarms with manual measurements |
| Project scope | Utilities, interfaces, documents, spares, packing, shipping and support | Written inclusions, exclusions and acceptance evidence |
Verification route
Move from a claim to recorded evidence
- Approve the duty, drawings and test conditions before fabrication is treated as final.
- Use production-intent product and packaging wherever they materially affect performance.
- Record results by format, operating condition and quality criterion rather than relying on a short edited video.
- List open items, owners and closure evidence before packing and again after site commissioning.
Risk register
Resolve these risks before price becomes the deciding factor
Low quotations often hide different assumptions. A short written risk register makes technical and commercial differences visible before contract award.
| Risk | Why it matters here | Required control |
|---|---|---|
| Application mismatch | Online inspection supplements rather than replaces scheduled destructive seam measurements. | Confirm defect catalogue and test build safe challenge samples. |
| Package or format mismatch | Unapproved containers, closures, labels or tolerances can invalidate an otherwise suitable machine choice. | Freeze can formats and verify test every format with production-intent samples. |
| Line imbalance | A filler cannot deliver saleable output when feeding, closing, labeling, packing or utilities become the constraint. | State line speed and spacing and verify verify reject confirmation across the connected line. |
| Weak acceptance evidence | Put compare online alarms with manual measurements into the FAT and SAT plan, including owners and close-out evidence. |
Buyer questions
Answers to common RFQ and acceptance questions
When is Can Fill Level and Seam Inspection useful?
Automatic can lines needing noncontact quality checks after seaming. Online inspection supplements rather than replaces scheduled destructive seam measurements.
What details should be supplied before requesting a quotation?
Prepare the following project-specific information: defect catalogue, can formats, line speed and spacing, detection limits, reject and data requirements. Drawings, photos and representative samples help the engineering review move from a budget assumption to a defined scope.
How should the proposed solution be checked before acceptance?
Use an agreed review or test plan to build safe challenge samples, test every format, verify reject confirmation, compare online alarms with manual measurements. Record the conditions, measurements and open actions so the result can be compared with the approved specification.
What should the supplier proposal state for can inspection system?
The proposal should state the design basis, included equipment, utilities, interfaces, output conditions, change parts, documentation, spare parts, delivery boundary and acceptance method. For this topic, explicitly record defect catalogue and can formats.
What evidence should be retained after FAT and site handover?
Retain the approved specification, drawings, test conditions, measured results, alarm and safety checks, open-item register, manuals, backups, parts list and signed handover record. This guide particularly requires evidence for build safe challenge samples and test every format.
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