Buyer and engineering knowledge centre
Automatic reject system guides.
Use these practical guides to compare reject mechanisms, define fail-safe monitoring, understand project cost drivers, compare product-format applications, plan validation and assess AI vision inspection.
What should you decide before specifying a reject system?
Start with the failed product, not the actuator. Record product dimensions and weight, line speed, minimum spacing, inspection signal, conveyor layout, cleaning environment and what must happen if rejection cannot be confirmed. Those facts determine the mechanism, tracking method, guarding, monitoring and project scope.
Follow the complete reject conveyor sequence, compare reject system types, define confirmation and fault monitoring, then prepare your specification checklist.
Request a line review →Conveyor reject methods
Air blast, pusher, sweep arm, drop flap, retracting belt, lane diversion and stop-on-detect explained.
Compare methods →ReliabilityReject verification
How confirmation sensors and fault monitoring prove that the failed product was removed.
Review fail-safe design →CommercialCost and specification
The factors that shape a quotation and the information that prevents avoidable scope changes.
Plan your project →ApplicationsFood and pharmaceutical lines
Secure containment, hygienic construction, controlled access, event outputs and validation support.
Read sector guide →Bottles, jars and cans
Stable, single-product rejection after cap, label, code, fill, weight and leak inspection.
Read container guide →Flexible packsPouches, sachets and bags
Air blast, pusher, sweep and drop-through options for flexible packaging formats.
Read flexible-pack guide →TestingValidation and challenge tests
Acceptance criteria, fault challenges, reject confirmation and repeatable records.
Plan validation →Machine visionAI vision inspection
When to use AI, rule-based vision or both—and how to turn the result into verified rejection.
Explore AI inspection →Search by inspection trigger or production problem.
Inspection equipment
Vision inspection, checkweighers, metal detectors, X-ray inspection, barcode verification, date-code inspection and leak detection.
Production equipment and retrofit
Explore rejection after filling machines and labelling machines, or review a retrofit to an existing conveyor.
What proves that a rejected pack has actually left the good-product flow?
Define the reject decision, physical removal and confirmation as separate steps. The suitable arrangement depends on the pack, speed and inspection system. Agree how failed rejects, a full reject area and loss of the inspection signal are handled, then test the specified responses with representative packs.
- Decision-to-pack tracking
- Physical rejection and confirmation
- Fault and full-bin responses