How do jewelry manufacturers track gold loss?

Manufacturers track gold loss by issuing raw metal against unique job bags, calculating theoretical vs actual weight at every manufacturing stage (casting, filing, stone setting, polishing), setting strict allowed wastage percentages per artisan (karigar), and reconciling recovered metal dust, filings, and refining yields.

What is the difference between invisible loss and recoverable loss?

Recoverable loss includes metal filings, scraps, and polishing dust captured by vacuum hoods and ultrasonic tanks, which can be melted and re-refined. Invisible loss is irreversible microscopic loss caused by oxidation, vaporization during torch work, and micro-abrasion that cannot be physically collected.

MANUFACTURING WIP GUIDE

How Jewelry Manufacturers Track Gold & Metal Loss: Complete WIP Guide

DIRECT ANSWER

To accurately track gold loss, jewelry manufacturers use a digital Job Bag (BOM/WIP) ledger that records precise gross and net weights at every stage of production—from alloy melting and tree casting to filing, stone setting, polishing, and ultrasonic cleaning. By comparing actual returns with preset allowed wastage thresholds per karigar, manufacturers eliminate shrinkage and reclaim valuable precious metal dust.

The 4 Critical Stages of Metal Loss in Production

Stage 1

Casting & Tree De-vesting

Molten metal oxidation and spruing. Gold loss is tracked by weighing the initial alloy charge against the cast tree and recovered button scrap.

Stage 2

Filing & Assembly (Ghat)

High visible scrap generation. Karigars must return filings and bench sweeps at day-end, reconciled against daily job bag issues.

Stage 3

Stone Setting & Drilling

Micro-shavings during prong prep and pave bead raising. Dual weight auditing prevents stone breakage substitutions or shrinkage.

Stage 4

Polishing & Lapping

High invisible loss and compound dust. Suction dust collector hoods and filtration basins collect microscopic particles for periodic assay refining.

How Effission MFG Automates Factory Loss Reconciliation

Traditional paper slips fail because they cannot correlate stone weights, metal purity, and artisan liability in real time. Effission MFG provides:

✦

Digital Barcoded Job BagsTrack stage progress through touchscreen kiosks and barcode scanners at each workstation.

✦

Artisan (Karigar) Metal LedgersReal-time purity-adjusted balance accounts for internal craftsmen and third-party contractors.

✦

Allowed vs Actual Wastage VarianceConfigurable tolerance ceilings by item complexity with instant supervisor alerts when loss exceeds thresholds.

✦

Refining Yield AuditingCompare recorded sweep weight with actual fine gold recovered from the refinery to audit chemical efficiency.

Eliminate Metal Shrinkage with Effission MFG

Learn how jewelry manufacturers in Mumbai, Surat, Bangkok, and Dubai use Effission to protect every milligram of precious metal.

Explore Manufacturing Solutions →