Inline weight and vision inspection

Checkweigher

Weight and vision inspection in one integrated system.

SSI builds inline checkweigher systems for weight checks, pass/fail handling, and reject control. An all-in-one configuration can combine checkweighing and camera-based inspection in a single conveyor solution.

Add vision checks for visible product features alongside weight verification, with coordinated controls, reject handling, and result signals.

Weight-only and combined weight-and-vision configurations are scoped to your product, line speed, inspection criteria, and validation samples.
SSI checkweigher with a stainless steel control cabinet, conveyor, guide rails, and one sample bottle.
SSI checkweigher shown. Integrated vision inspection is available as a configured option.
How it works

From stable product transfer to traceable reject action

Define product transfer, weight limits, optional vision checks, pass/fail rules, and the reject action required for the line.

  1. Detect

    Control the weigh event

    Product spacing, guides, and conveyor transfer are reviewed so each item reaches the weigh zone in a stable, repeatable way.

  2. Verify

    Check weight and selected features

    Compare measured weight with the configured target and tolerance. When vision is included, cameras check the selected visible features against the agreed inspection criteria.

  3. Decide

    Combine results into a decision

    Configured rules use the weight result and, when included, vision results to determine pass, fail, alarm, hold, or line-stop behavior.

  4. Reject / log

    Handle bad product

    Reject devices, bins, conveyors, alarms, stops, and reject-confirmation checks remove or flag product that fails the configured weight or vision criteria.

  5. Report

    Record usable results

    Counts, weight results, and optional vision results can be tied to product events, timestamps, quality records, CSV exports, database records, or MES handoffs as scoped.

Typical scope

Typical scope

Define weight criteria, optional vision checks, conveyor constraints, reject behavior, and quote inputs before sending samples or layout details.

Line speed
Scoped to target throughput, checkweigher response time, weigh-zone stability, conveyor transfer, and reject distance.
Product spacing
Controlled spacing, guide strategy, and stable transfer through the weigh zone are reviewed before final hardware selection.
Inspection type
Inline weight verification, with optional camera-based inspection in an all-in-one conveyor system. Camera views, lighting, and acceptance criteria are validated using representative samples.
Reject method
Reject bin, reject conveyor, alarm, hold, or line-stop behavior with reject confirmation when required by the process.
Data outputs
Counts, status, event logs, and weight results, with vision results when included; CSV, database, quality records, and dashboards are scope-dependent.
PLC/MES integration
PLC/HMI signals, alarms, interlocks, status handoffs, result data, database, and MES integration are added as required.
What SSI needs to quote
Product size and weight, target and tolerance, line speed and layout, spacing and transfer constraints, required vision checks, reject method, acceptance criteria, validation samples, and data needs.
Buyer fit

Fit, scope, and quote requirements

Scope a weight-only checkweigher or an all-in-one weight and vision inspection system around your product, line layout, reject method, and required records.

Best fit for

  • Production lines that need underweight or overweight checks
  • Operations replacing manual sampling with inline weight verification
  • Products that need pass/fail status before downstream work
  • Lines where product spacing and weigh-zone transfer can be controlled
  • Lines that need weight and visual checks in one conveyor solution

Common applications

  • Package, carton, container, or assembled product weight checks
  • Target-weight and tolerance checks by product
  • Reject bin or reject conveyor routing
  • Quality review using counts, status, and event history
  • Combined weight and camera-based product inspection

What it verifies

  • Target weight windows and tolerance limits
  • Under, over, and accepted product status
  • Pass/fail outputs tied to the configured product setup
  • Reject confirmation when required by the process
  • Selected visible features when vision inspection is included

Integration requirements

  • Infeed and outfeed conveyor transitions
  • Stable product spacing, guides, and weigh-zone transfer
  • PLC/HMI handshakes, alarms, interlocks, or line-stop logic
  • Status, result, event log, CSV, database, or MES handoff needs
  • Camera views, lighting, triggering, and result coordination when vision is included

What SSI needs to quote

  • Product size, weight, target, and tolerance
  • Line speed, layout, product spacing, and transfer constraints
  • Reject method, reject distance, and confirmation needs
  • Acceptance criteria, validation samples, and data requirements
  • Required vision checks, example defects, and representative product samples
Next step

Ready to scope this system?

Send samples, drawings, target line speed, spacing, reject handling, and data requirements so SSI can confirm fit and quote the right Checkweigher configuration.

  • Samples, drawings, or product photos
  • Line speed, spacing, and orientation
  • Reject handling, logging, and integration needs
Request a Quote