Wire Drawing & Rod Processing worked example
Rod-To-Wire Yield at 68% target scrap-loss allowance: a worked example
Suppose target scrap-loss allowance falls to 68%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Rod-To-Wire Yield tracks how much of the rod you charge into a drawing line survives as finished wire versus what is lost to cobbles, welds, tag ends, scale and out-of-tolerance footage.
The inputs for this scenario
- Scrap and cobble weight lost: 8 units (held at the documented default)
- Rod charged into the line: 250 units (held at the documented default)
- Target scrap-loss allowance: 68 % (the input this scenario stresses; the baseline uses 95)
Working through the calculation
- The calculation starts from the formula this tool documents: Rod-To-Wire Yield rate = affected amount รท total amount.
- Rate works out to 3.2 % at these inputs, and this is the headline figure for the scenario.
- Gap to target works out to 64.8 points at these inputs.
- Affected count works out to 8 count at these inputs.
- Total count works out to 250 count at these inputs.
How this compares with the baseline
- Against the tool's baseline example, where target scrap-loss allowance sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
- Computes scrap loss as a percent of rod charged and the gap between that loss and your target allowance in percentage points. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.
Results at a glance
- Rate: 3.2 % (headline result)
- Gap to target: 64.8 points
- Affected count: 8 count
- Total count: 250 count
Run it with your numbers
- To rerun this with your own numbers, open the live Rod-To-Wire Yield calculator, set target scrap-loss allowance to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.