Inline Weight Verification & Rejection Systems
Inline conveyor checkweigh stations that automatically weigh bags, cartons, or pouches on the production line and verify compliance with preset weight parameters — with options for data recording, reject alarms & lights, and automatic physical bag rejection.
Inline
No production stoppage
Auto reject
Physical bag rejection
Data log
Weight data recording
Alarm
Visual & audio alerts
Check Weight Conveyor
Check weight conveyors are inline quality control systems that automatically weigh every product unit passing through the production or packaging line without slowing throughput. As bags, pouches, or cartons travel along the conveyor, the integrated weighing station measures each item and instantly compares it against preset acceptable weight parameters.
Units that fall outside the defined weight range trigger an immediate response — an alarm, warning light, or automatic physical rejection mechanism — ensuring that underweight or overweight products never reach the end customer. This protects brand reputation, ensures regulatory compliance, and minimises material give-away on the production floor.
Alpha Beltech & Systems offers check weigh conveyors with full customisation of belt width, weighing capacity, rejection mechanism, and data output format to integrate seamlessly into any existing packaging line.
Key specifications
Inline weight verification
Continuously weighs every bag, pouch, or carton in motion — no halting, no manual sampling. Fully compatible with high-speed packaging lines.
Preset weight parameters
User-defined upper and lower weight limits. Products outside tolerance are instantly flagged — ensures consistent fill weights across every SKU.
Data recording
On-board data logging of weight readings, rejection counts, and production totals. Exportable for quality audits, regulatory compliance, and production reports.
Reject alarms & indicator lights
Visual warning lights and audio alarms alert operators immediately when an out-of-spec product is detected — enabling fast corrective action at the filling or dosing station.
Physical bag rejection mechanism
Automatic diverter or pusher ejects non-conforming products from the line into a dedicated rejection bin — zero human intervention required, zero chance of faulty product passing through.
Why invest in a check weigh conveyor?
1. Zero give-away
Eliminating overfill waste pays back the system cost within months on high-volume lines — even a 1 g reduction per bag adds up fast.
2. Compliance
Meets legal metrology and weights & measures regulations. Data logs provide audit-ready evidence of in-spec production.
3. Brand protection
Prevents underweight products reaching consumers — eliminating customer complaints, returns, and regulatory penalties.
4. 100% inspection
Unlike manual sampling, every single unit is checked — giving true 100% quality assurance with no statistical sampling gaps.
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