Process Improvement
Scrap Reduction Process Architecture
Quality gates, in-process checkpoints, and controlled scrap handling reduced avoidable losses by approximately 70%.
Engagement at a glance
- Industry
- Manufacturing
- Focus
- Process Improvement
- Systems and work involved
- Process Controls · Excel Tracker · Reason Code Analysis
On this page
The business context
A fabrication unit processing metal sheets and profiles reported scrap and wastage at roughly 20% of material purchases. This was treated as an unavoidable cost of doing business. A closer look revealed that a significant portion was avoidable—mistakes in design interpretation, set-up losses, and handling damage.
The challenge
No Distinction Between Inherent and Avoidable Scrap
Cut-offs from raw material were lumped together with rework rejects and handling damage.
Weak Traceability
Scrap was not tagged to source station, job, or reason. It simply accumulated in a corner of the shop floor.
Uncontrolled Disposal
Scrap was sold to local vendors without proper weighment or documentation, creating potential for leakage.
What we found
What we changed
Design Quality Gate
100% self-review by the designer. Second-eye QA review for jobs above a defined value threshold. No release to production without signed-off drawing.
First-Piece Approval
Mandatory first-piece inspection and sign-off before batch production begins. Visual aids posted at workstations.
Scrap Control Room
Locked room for all scrap. Deposit requires a slip counter-signed by supervisor with reason code and source job number.
Weekly Reason-Code Review
Every Friday, the production head reviews top 5 scrap categories and assigns corrective actions.
Implementation
Week 1-2: Documented current scrap flow and categorized historical data.
Week 3: Set up the locked scrap room and deposit slip process.
Week 4-5: Implemented design quality gate and first-piece approval process.
Week 6-8: Trained teams, established weekly reviews, and refined reason codes.
Outcomes
| Area | Result described in this case |
|---|---|
| Avoidable Scrap | Client reported approximately 70% reduction during project window |
| Traceability | 100% of scrap now tagged to job and reason code |
| Scrap Value Recovery | Improved by approximately 15% through proper documentation and competitive disposal |
The practical lesson
This material is general information. Apply it to your business only after checking the relevant facts, source documents and requirements.