Single-Use Bioprocess Assemblies worked example

Tubing Cut Length Cost at 66% usable tubing yield after cuts: a worked example

This worked example runs the tubing cut length cost numbers for a tougher week than the baseline: 66% usable tubing yield after cuts instead of the typical 92%. Estimates tubing cut-length cost for a single-use bioprocess assembly from total feet cut, validated tubing cost per foot, and post-scrap usable yield.

The inputs for this scenario

  • Total tubing cut length: 3,200 ft (held at the documented default)
  • Silicone/TPE tubing cost per foot: 3.4 $/ft (held at the documented default)
  • Usable tubing yield after cuts: 66 % (the input this scenario stresses; the baseline uses 92)
  • Cut, weld and cleanroom setup charge: 1,800 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Cost = cut length x cost per foot x usable yield % + cut & cleanroom setup.
  • Total tubing cut length cost works out to 8,981 $ at these inputs, and this is the headline figure for the scenario.
  • Tubing cut length cost per unit works out to 2.81 $ / piece at these inputs.
  • Variable tubing cut length cost works out to 7,181 $ at these inputs.
  • Fixed tubing cut length cost adder works out to 1,800 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where usable tubing yield after cuts sits at 92% and the headline result is 11,810 $, this scenario comes in 23.95% below the baseline at 8,981 $.
  • Use it when quoting or costing a single-use tubing assembly run, or when comparing tubing grades and suppliers on a delivered-cost basis. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Total tubing cut length cost: 8,981 $ (headline result)
  • Tubing cut length cost per unit: 2.81 $ / piece
  • Variable tubing cut length cost: 7,181 $
  • Fixed tubing cut length cost adder: 1,800 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Tubing Cut Length Cost calculator, set usable tubing yield after cuts to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.