MedTech Cost

Medical Device Cost Estimation and Quoting: What Drives Cost Per Unit

A cost breakdown for medical device work: the real drivers behind cost per unit, how to build a quote that survives audit, and the line items estimators routinely miss.

In device manufacturing the material line is rarely the story. On a typical single-use disposable, resin and components run 12 to 25 percent of cost per unit, while cleanroom occupancy, sterilization, and quality overhead frequently exceed 50 percent combined. That inverts the instinct machinists bring from general contract work. If you quote a 1.08 dollar device and assume material dominates, you will misprice by double digits. Build the quote as stacked buckets: material, direct labor, cleanroom allocation, sterilization, quality and sampling, validation amortization, then overhead and margin, and size each bucket independently.

Cleanroom cost is the bucket that separates good quotes from losing ones. It is an occupancy charge, not a per-part charge, so the number that matters is dollars per productive hour divided by parts per hour. A suite burning 380 dollars per hour that you fill at 900 good parts costs 0.42 dollars each; the same suite at 500 parts costs 0.76. The Cleanroom Cost Per Part and Cleanroom Utilization tools show why a low-volume program carries a punishing occupancy rate. Quote low-runners at their true utilization, not at the rate your high-volume lines enjoy.

Labor in the cleanroom costs more than the clock says because gowning is unbillable. Every entry burns 6 to 8 minutes of paid time producing nothing, and a suite with 6 operators entering twice a shift loses roughly 96 minutes per shift. Use the Cleanroom Gowning Time and Cleanroom Labor Cost calculators to load that dead time into the labor rate. If you quote a 21 dollar per hour operator as if 100 percent of paid time is productive, you understate labor by 10 to 15 percent on gowning-heavy, short-cycle work.

Sterilization pricing is driven by cycle economics and fill, not by the piece. A method is a fixed cost per cycle or per pallet spread across whatever you load. An EO cycle at 1,450 dollars is 0.45 dollars each at 3,200 units and 0.38 at 3,800. The quoting error is pricing a partial load as if it were full: if the customer's order only fills the chamber to 60 percent, your real cost per unit jumps accordingly. Sterilization Cost Per Unit and Sterilization Batch Capacity let you quote the actual load configuration the order implies, not the ideal one.

Validation is a one-time cost that must be amortized honestly against committed volume. Three PQ batches plus protocols can total 40,000 to 60,000 dollars per SKU. Spread over 1.2 million lifetime units that is about 0.04 dollars each; spread over 150,000 units it is 0.30 or more. The classic mistake is absorbing validation into overhead and hiding it, then losing money on the short-run programs that actually consumed it. The Validation Batch Cost calculator ties the spend to a specific volume commitment so the quote reflects the run length the customer is really buying.

Scrap and yield hit every bucket at once, so model them as a divisor, not an add-on. At 96 percent first-pass yield you are paying for material, labor, cleanroom, and sterilization on 4 percent of parts you cannot ship, so divide the stacked cost by 0.96. On a device where sterilization is already committed before final inspection, scrap after sterilization is doubly expensive because you have spent the 0.45 dollar cycle share on a unit headed for the bin. A 2-point yield miss on a million-unit program at 1.08 dollars is roughly 22,000 dollars of pure loss.

Overhead in a regulated shop is heavier than in general machining and should not be a token 15 percent markup. Document control, complaint handling, CAPA, calibration, and regulatory affairs are real recurring costs, often 25 to 40 percent on top of direct cost for a Class II product. Bioburden and environmental monitoring add a per-lot line the Bioburden Sampling Cost calculator sizes directly. Roll all of this into the Medical Device Unit Cost calculator so the quote shows every component; a quote that survives a customer cost audit is one where each 0.01 dollar is traceable to a method.

Where estimates go wrong most often: quoting cleanroom at high-volume utilization for a low-volume order, treating gowning time as free, pricing a partial sterilization load as full, burying validation in overhead, and ignoring post-sterilization scrap. Each of these understates cost by single-digit cents that compound. On a 1.08 dollar unit, getting cleanroom utilization, gowning, sterilization fill, and validation amortization right can swing your true cost by 0.15 to 0.25 dollars, which is the entire margin on a competitive device. Estimate each bucket with its own tool rather than a blended shop rate.

Published 2026-07-01.