CNC Machining worked example

Coolant Cost Per Part with coolant cost for the job or period of 1,100 $: a worked example

What does the result look like when coolant cost for the job or period reaches 1,100 $? The full calculation is worked below with real intermediate numbers. allocating coolant cost to a CNC job, quote, machine cell, or production period

The inputs for this scenario

  • coolant cost for the job or period: 1,100 $ (raised for this scenario; the documented default is 420)
  • good machined parts produced: 3,500 parts (unchanged)
  • coolant allocation factor: 1 x (unchanged)

Working through the calculation

  • Applying the documented formula (Coolant Cost Per Part = coolant cost for the job or period ÷ good machined parts produced × coolant allocation factor) to the inputs above produces each figure below.
  • At this operating point the engine returns 0.31 $ / part for base coolant cost per part, the number this scenario is built around.
  • At this operating point the engine returns 0.31 value for raw ratio.
  • At this operating point the engine returns 1 x for conversion factor.
  • At this operating point the engine returns 3,500 value for good machined parts produced.

How this compares with the baseline

  • Against the tool's baseline example, where coolant cost for the job or period sits at 420 $ and the headline result is 0.12 $ / part, this scenario comes in 162% above the baseline at 0.31 $ / part.
  • A figure at this level is achievable when coolant cost for the job or period is genuinely sustained, not just peaked for a shift. It treats coolant cost as evenly spread across all good parts, so a single job that fouls a sump or forces an early dump will distort the per-part figure unless you isolate that run.

Results at a glance

  • base coolant cost per part: 0.31 $ / part (headline result)
  • Raw ratio: 0.31 value
  • Conversion factor: 1 x
  • good machined parts produced: 3,500 value

Run it with your numbers

  • Every input above is editable in the live Coolant Cost Per Part calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.