Fastening, Torque & Joint Assembly worked example

Fastening Automation Payback with installed fastening automation investment of 312,500 $: a worked example

What does the result look like when installed fastening automation investment reaches 312,500 $? The full calculation is worked below with real intermediate numbers. Use it when evaluating automated screwdriving, robotic nutrunners, torque reaction arms, error-proofing, feeders, or traceability upgrades.

The inputs for this scenario

  • Installed fastening automation investment: 312,500 $ (raised for this scenario; the documented default is 125,000)
  • Annual fastening automation savings: 72,000 $ / yr (unchanged)
  • Annual automation support cost: 9,000 $ / yr (unchanged)

Working through the calculation

  • Applying the documented formula (Net annual fastening automation savings = annual savings - annual support cost) to the inputs above produces each figure below.
  • At this operating point the engine returns 4.96 yr for fastening automation payback period, the number this scenario is built around.
  • At this operating point the engine returns 63,000 $ / yr for net annual automation savings.
  • At this operating point the engine returns 312,500 $ for installed automation investment.
  • At this operating point the engine returns 2,500 $ for five-year net automation value.

How this compares with the baseline

  • Against the tool's baseline example, where installed fastening automation investment sits at 125,000 $ and the headline result is 1.98 yr, this scenario comes in 150% above the baseline at 4.96 yr.
  • A figure at this level is achievable when installed fastening automation investment is genuinely sustained, not just peaked for a shift. Simple payback ignores the time value of money and anything past the payback point, so it understates the value of long-lived, high-uptime cells.

Results at a glance

  • Fastening automation payback period: 4.96 yr (headline result)
  • Net annual automation savings: 63,000 $ / yr
  • Installed automation investment: 312,500 $
  • Five-year net automation value: 2,500 $

Run it with your numbers

  • Every input above is editable in the live Fastening Automation Payback calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.