A check weigher is an important production tool that helps ensure consistent product quality and weight for packaged goods. But exactly what role does a check weigher play? Here's a quick overview of how they function.
Weight Verification
Check weighers are installed on packaging lines to precisely measure the weight of each product passing through on a conveyor belt. This is done many times per minute for high-speed lines.
Target Weight Comparison
The actual weight of each item is then compared to the pre-set target or "setpoint" weight programmed into the check weigher's system. This setpoint is usually the average amount.
Out-of-Spec Alerts
If an item falls outside the acceptable weight range - being under or over the setpoint by a certain threshold - the check weigher triggers an alarm. This alerts operators to potential issues.
Production Adjustments
Data collected helps fine-tune portioning, wrapping and loading processes to reduce weight variances. Corrective actions improve overall product consistency.
Reject Mechanism
For significantly out-of-tolerance items, check weighers can activate automatic rejection systems like diverters that remove non-conforming units from the packaging line.
Overall, check weighers play an important quality control role in monitoring production weights, catching errors and providing valuable analytics to maintain stringent weight specifications for goods. This ensures customers receive full portions.
