Reject Handling and Yield Management for Automated Card Lines

Views :

Update time : 2026-08-27

Reject Handling and Yield Management for Automated Card Lines

发布日期: 2026-08-27

A card line is only as profitable as its first-pass yield. Small gains in reject handling and inline inspection compound across millions of cards. This guide covers the practical levers.

Where Rejects Are Born

Most scrap appears at four stations: lamination voids, milling depth error, module tilt, and print registration drift. Each has a signature defect and a dedicated checkpoint. Catching a bad card at lamination costs cents; catching it after personalization costs ten times more. The goal is to reject early and log why.

A pneumatic reject gate diverting a flagged card before the encoding station.

Yield Levers That Pay Back

Early reject gates

Pneumatic divert at lamination and milling prevents good-station waste.

Vision sorting

Inline cameras classify defects by type for root-cause tracking.

First-pass rate KPI

Track FPR per shift; a 2 percent lift often funds the vision upgrade.

Closed-loop setup

Feed defect stats back to press and encoder parameters weekly.

Typical Yield Targets

参数	数值
Lamination first-pass	98.5% target
Milling accuracy	±0.02 mm
Module placement	±0.05 mm
Line first-pass rate	96-98% world class
Scrap cost per reject	10x if caught late