Risks
Two plastics or colors mix in one grinder
| Risk | A grinder moved to another job without being cleaned out carries the old plastic into the new one. |
| Early sign | Black specks or streaks on parts molded with the flakes. |
| Mitigation | One grinder for each plastic and color, cleaned out and checked before it moves. |
| Impact | One rejected batch can cost more than a year of that grinder's saving. |
More flakes go in than the customer allows
| Risk | Flakes scooped in by eye go in at whatever share the scoop gives, not the share the job allows. |
| Early sign | The flakes run out, or pile up, faster than the set share explains. |
| Mitigation | Weigh the flakes into each box of new plastic. If the share still drifts, a blender that weighs the mix at the press costs $8,000 to 20,000. |
| Impact | Parts outside the customer's specification on that job. |
Illustrative sample. The plant, the walk and the footage are synthetic. Figures from our analysis are estimates made with AI, not guarantees.