Ceramic, Tile & Sanitaryware Manufacturing calculator
Crack Defect Cost Calculator
Crack Defect Cost helps quality technicians, kiln teams, and plant managers quantify the financial impact of crack defects across forming, drying, firing, and handling. It combines affected pieces, cost per cracked piece, defect share, and fixed containment or investigation cost.
What this calculator does
- Estimate cost exposure from cracked tiles, fired cracks, drying cracks, or cracked sanitaryware pieces.
- a ceramic quality team is estimating the cost impact of cracks found after drying, firing, inspection, or packaging
- The result estimates expected cost from crack defects for the selected production lot or process step.
Formula used
- Variable cracked-ware loss = pieces at risk × cost per cracked piece × expected crack defect rate
- Expected crack defect cost = variable cracked-ware loss + fixed containment, sorting, or root-cause cost
Inputs explained
- Tiles or fixtures at risk of cracking: Count the pieces in the drying batch, firing load, inspection lot, or packaging run exposed to crack loss.
- Cost per cracked tile or fixture: Include body, glaze, forming, firing, inspection, and handling cost lost when a cracked piece is scrapped or downgraded.
- Expected crack defect rate: Use recent crack rate by product family, body recipe, dryer, kiln curve, mold condition, or handling step.
- Fixed containment, sorting, or root-cause cost: Add special inspection, lab testing, kiln curve review, dryer checks, mold inspection, or containment labor.
How to use the result
- Use it when reviewing drying curves, firing schedules, green handling, mold life, body formulation, or customer claims.
- It does not identify the root cause of cracking and excludes lost sales, warranty exposure, or customer penalties unless those costs are entered.
Common questions
- What crack rate should I use? Use the observed crack rate for the same product, body recipe, dryer, kiln curve, mold condition, or handling method whenever possible.
- Should downgraded pieces be included? Include them if cracked pieces are sold as seconds or reworked by using the net cost impact per cracked piece instead of full scrap cost.
- Can this compare dryer or kiln changes? Yes. Run the estimate with the expected crack rate before and after a dryer curve, firing cycle, or handling change.
- When is the estimate incomplete? It is incomplete if cracks drive customer claims, production delays, extra kiln loads, or reputation loss that is not included in the cost inputs.
Last reviewed 2026-05-12.