Wood & Paper Manufacturing calculator

Paper Break Cost Calculator

A web break is the single most disruptive event on a running paper machine, dropping the sheet, stopping the reel, and forcing a wet-end thread-up that can cost thirty minutes of production. This calculator converts your break frequency, per-break cost, and the share of that cost that actually hits saleable production into a hard daily dollar figure, then adds a fixed cleanup charge for hosing down couch pits and forming fabric. Reliability engineers, machine superintendents, and continuous-improvement teams use it to justify tension-control upgrades, sheet-break detection cameras, and stickies-reduction programs. Once you can price a break, you can price the fix.

What this calculator does

  • Estimates the daily cost of paper machine web breaks including lost runtime and wet-end cleanup.
  • A machine superintendent uses it to justify break-reduction projects against measured downtime.
  • It computes the total daily cost of paper web breaks as breaks x cost per break x production impact share, plus a fixed wet-end cleanup charge.

Formula used

  • Paper break cost = breaks x cost per break x production impact% + wet-end cleanup charge
  • Cost per break = total break cost / web breaks per day

Inputs explained

  • Web Breaks per Day:
  • Cost per Break:
  • Production Impact Share:
  • Wet-End Cleanup Charge:

How to use the result

  • Use it when building the business case for break-reduction capital or when tracking the cost impact of a run of poor runnability.
  • The production impact share is an estimate of how much of the nominal per-break cost lands on saleable tonnage; it does not model downstream order-lateness penalties or quality claims from broke contamination.

Current U.S. benchmarks

  • The producer price index for lumber and wood products stands at 280.994 (BLS, May 2026), up 4.2% from a year earlier. Quotes priced off last quarter's material cost miss this move.
  • The producer price index for paperboard and containers stands at 276.831 (BLS, May 2026), up 8.8% from a year earlier. Quotes priced off last quarter's material cost miss this move.
  • The U.S. has 13,899 wood product manufacturing establishments employing about 432,255 workers (Census County Business Patterns, 2023).

Common questions

  • How do you calculate paper break cost? Multiply breaks per day by the cost per break, then by the production impact share, and add any fixed cleanup charge. With 6 breaks at $950 each, an 85% impact share, and a $400 cleanup charge, the total is $5,245 per day.
  • What is a good web break rate for a paper machine? World-class fine-paper and tissue machines run below 1-2 breaks per day; newsprint and lightweight grades tolerate more. Six breaks a day, as in the example, signals a runnability problem worth investigating.
  • Why include a production impact share instead of full cost? Not every minute lost to a break maps to lost sales; some is absorbed by buffer stock or slack in the order book. The 85% share scales the $950 nominal cost down to the portion that truly erodes throughput.
  • What drives the cost per break? Lost production tonnage during thread-up, additional broke repulping energy, chemical loss at the wet end, and steam to re-dry the sheet. Machine speed and grade value push this number up quickly.
  • How much is a single break worth in this example? The calculator divides the $5,245 total by 6 breaks to show roughly $874 per break as an all-in per-event cost including the amortized cleanup charge.

Last reviewed 2026-05-12.