Common reject triggers
- Barcode, 2D code, OCR, label, or print mismatch
- Vision inspection fail from upstream equipment
- Wrong product, missing component, bad orientation, or bad count
- PLC, sensor, scanner, HMI, or operator-driven fail output
Reject handling systems
Knock Off / Reject Handling Systems
SSI designs knock off and reject handling systems from Rockford, IL that turn an inspection fail, barcode mismatch, label issue, or line-control decision into a defined response: reject, alarm, stop, hold, count, or log.
Fastest start: send line photos, throughput, product size, spacing, fail signal source, reject location, and any confirmation or logging requirements.
Prefer email or phone? sales@ssi-co.com or 815.315.0863.
Reject path
Match the response to the line.
High-speed knock off, standard divert, stop, hold, alarm, or log.
System proof
See the two knockoff platforms.
Real SSI product views help buyers compare high-speed and standard setups.
Control model
Track, reject, confirm, record.
Scope timing, confirmation sensing, recovery, and production records.
Start quote
Send the line evidence.
Photos, speed, spacing, fail source, reject point, and records.
Production problem
The inspection result is only useful if the line response is controlled.
Many lines can detect an exception. The harder work is removing or controlling the right item without creating a second issue. SSI scopes reject timing, product handling, confirmation sensing, operator feedback, and recovery behavior around the real line constraints.
Common reject actions
- High-speed timed knock off or standard reject diversion
- Alarm, stop, hold, operator prompt, or quality-hold action
- Reject confirmation, missed-reject alarms, and bin status
- Reject counts, timestamps, CSV, database, HMI, or MES records
Reject paths
Choose the response that fits the product and line speed.
The right package depends on product spacing, line speed, reject distance, fail signal timing, recovery behavior, and the record the customer needs after a failed part.
High-speed timed knock off
Best when the line has a tight reject window and the product must be tracked from inspection to removal.
- High throughput or close product spacing
- Encoder, sensor, or distance-based timing
- Reject force, bin, and confirmation reviewed together
Standard reject or divert
Best when product position is predictable and a simpler station can remove failed parts without high-speed tracking.
- Moderate-speed conveyor or station flow
- Vision, scanner, sensor, or PLC fail input
- Pneumatic actuation and cycle confirmation when needed
Stop, hold, alarm, or log
Best when physical removal is not the right action, or when the first phase is to control operator response and records.
- Quality hold, operator prompt, or line stop
- Fail event logged for traceability or review
- Recovery behavior defined before restart
System proof
Two SSI knockoff platforms cover most reject-handling starts.
SSI starts with the closest practical platform, then scopes timing, mechanics, controls, guarding, confirmation, records, and installation details around the actual production line.
High-speed platform
High-Speed Knockoff
Encoder-synchronized reject handling for tight reject windows, close spacing, and high-throughput production lines.
- Distance-based product tracking
- Timed actuation at the reject point
- Confirmation and fault handling as scoped
Standard platform
Standard Knockoff
Sensor-timed reject control for moderate-speed lines that need dependable removal and straightforward service access.
- Queued fail input and station trigger
- Pneumatic knockoff or divert action
- Extend/retract confirmation when required
Control model
From fail signal to confirmed line response.
Use this sequence to scope how the system detects the bad item, tracks it to the reject point, acts at the right moment, confirms the result, and records the event.
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1
Detect
Vision, scanner, sensor, PLC, HMI, or operator logic defines the fail event.
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2
Track
Line speed, spacing, trigger method, and reject distance locate the target item.
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3
Act
The system rejects, diverts, stops, holds, alarms, prompts, or logs as scoped.
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4
Confirm
Confirmation sensing checks reject action, actuator position, bin state, or miss.
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5
Record
Counts, timestamps, faults, CSV, database, HMI, MES, or PLC status are added.
Quote package
What SSI needs to quote the reject-handling work.
A short line video, product photos, and a clear fail-action goal usually expose the largest quote risks early: timing, force, spacing, controls, confirmation, and records.
Line and product evidence
- Line speed, conveyor type, product spacing, and reject distance
- Product size, weight, shape, stability, and presentation photos
- Reject location, bin, chute, guarding, access, and sanitation constraints
- Available air, electrical, PLC, fieldbus, and enclosure constraints
Control and response evidence
- Fail signal source, timing method, and product tracking method
- Reject, alarm, stop, hold, prompt, or log-only action
- Confirmation sensing, missed-reject behavior, and restart logic
- Counts, timestamps, CSV, database, HMI, PLC, or MES records needed
Reject quote questions
Common knock off and reject handling questions
These answers help buyers send enough context for SSI to choose the right reject path before detailed controls and mechanical scope are finalized.
Send line photos or a short video, throughput, product size and spacing, fail signal source, reject location, desired action, confirmation needs, and any PLC, HMI, MES, CSV, or database record requirements.
High-speed systems fit tight reject windows, high throughput, close spacing, or distance-based tracking needs. Standard knockoff systems fit moderate-speed lines where product position is predictable and the reject point can be sensor-timed.
Yes. SSI can scope the reject action around an existing pass/fail output when the signal timing, product tracking, handoff point, and required recovery behavior are clear enough to review.
Reject confirmation can be scoped with sensors, actuator extend/retract checks, bin or chute status, downstream presence checks, or another line-specific method. The correct approach depends on the product and reject path.
Missed-reject, jam, full-bin, or actuator-fault behavior can be scoped as an alarm, stop, hold, operator prompt, record, or restart lockout depending on how the customer wants the line to recover.
Start the reject quote
Quote the reject action with the inspection criteria.
Send photos, throughput, product size, fail signal, reject location, desired action, confirmation needs, and integration constraints. SSI will help determine whether a High-Speed Knockoff, Standard Knockoff, or custom reject response is the right fit.