Guides / For Suppliers

Is Medical Work Worth It for a Machine Shop? The Honest Version

September 23, 2026

There is a version of this conversation that gets had at trade shows, and it goes: medical is high margin, recession resistant and sticky, get certified and get in.

All three of those are broadly true. None of them is the reason shops fail at it.

This is the other version, written by someone who does not sell you a certificate, a consultancy package or a machine.

What it actually costs to get in

Three buckets, and only the first one is the one shops budget for.

The certificate. Shops commonly report somewhere between 10,000 and 50,000 US dollars for the first year once you count the certification body’s audit fees, any consultant help and the internal hours. The range is wide because it depends almost entirely on what you already have. A shop running a real ISO 9001 system is extending it. A shop running ISO 9001 as a binder nobody opens is building a quality system for the first time and calling it an extension.

Then surveillance audits, every year, forever.

The system that has to exist behind it. Document control, CAPA, management review, risk management, supplier control of your own sub-tiers, validated processes with IQ, OQ and PQ records where you cannot verify the result by inspection. Cleaning and passivation are the usual validation cases in a machine shop. This is not a purchase, it is a permanent overhead, and it usually means a person.

The documentation on every single job. This is the one that surprises people. For a complex instrument or implant part, the documentation package is commonly 15 to 25 percent of the total job cost: first article, dimensional reports against the drawing revision, material certificates traced to heat, lot travellers, certificates of conformity, and the record keeping behind all of it.

That is not overhead you absorb. That is a line you quote, and the shops that get hurt are the ones that did not.

The thing that decides whether it pays

Not the certificate. Whether you price the paperwork.

A shop that wins medical work by quoting its commercial hourly rate and treating the documentation as a cost of doing business will book revenue, feel busy, and find out at the year end that the medical jobs were the least profitable in the shop. The parts were fine. The quality engineer’s hours were never in the quote.

The shops that do well quote medical work as two things: the machining, and the evidence package. Buyers who understand the industry do not blink at this, because they know what they are asking for and they have seen what happens when a supplier pretends it is free.

If you cannot bring yourself to put the documentation on the quote, do not get certified. You will do the work either way and only one version of it pays.

Three cases where the answer is no

You would have to buy machines for it. The advice that gets repeated by shop owners who have been through this is consistent: certification as an addition to work you already do can open doors, but buying capacity on the assumption that the contracts will follow is how shops end up with an expensive Swiss lathe and a quality manual. Medical buyers qualify slowly, often three to six months, and they do not move volume to a new supplier quickly.

You need the revenue within six months. Certification is six to twelve months for a shop that already runs ISO 9001. Then qualification by each customer on top. Medical is a plan for year three, not a fix for a slow quarter.

Nobody in the building wants to own the quality system. This is the real one. The certificate is not the deliverable, the discipline is, and discipline needs a name attached to it. A shop where the quality system is everybody’s job part time will pass the first audit on adrenaline and fail the second one on entropy.

What good looks like from the buyer’s side

Having read a lot of RFQs from the other direction, the shops that buyers keep are unremarkable in a specific way.

They say no to parts they cannot hold, in writing, quickly. Buyers remember this more fondly than a cheap quote.
They tell the customer before changing a tool coating, a coolant, a bar supplier or a passivation sub-tier. Every time. Not because it is polite but because it is a clause in the agreement.
Their certificate scope line actually names machining, and they know it does, and they can say so without going to look.
They quote the documentation as a line item and explain it once, calmly.
Their first article comes back against the right drawing revision the first time.

None of that requires a better machine than the shop down the road.

A cheaper way to test the water

Before spending 30,000 dollars to find out whether you like this market, quote some of it.

Take non-implant medical work first: capital equipment parts, lab and diagnostic components, fixtures, non-patient-contacting housings. Much of it is placed with ISO 9001 shops that have genuine lot traceability. You will find out quickly whether your shop tolerates the documentation rhythm, and you will find out on somebody else’s tolerance budget.

If that work is a pleasure, the certificate is a good investment. If your team finds the paperwork intolerable at that level, it does not get better with a certificate. It gets worse, and audited.

Where we come in, and where we do not

We match device buyers with machining suppliers. Shops pay for the leads they take, they preview each request before deciding, and we take no commission on the order. We do not sell certification, consultancy or software, which is the only reason we can write the paragraph above about not getting certified.

For what a device maker does with a new shop once it applies, see medical device supplier qualification.

If you already run medical work under a current certificate, register your shop. If you are still deciding, read this again in six months and see whether the documentation paragraph still annoys you.

Sources

Standards and regulations change. Check the current text at the source before you rely on it in a submission.

Frequently asked questions

How much does ISO 13485 certification cost a machine shop?

Shops commonly report a first year total in the region of 10,000 to 50,000 US dollars once audit fees, consultant support and internal preparation time are counted, with surveillance audits every year after. The spread is wide because it depends almost entirely on how much of a documented quality system you already run.

Can I get medical work without ISO 13485?

Some. Capital equipment, lab fixtures, non-patient-contacting parts and prototype work are regularly placed with strong ISO 9001 shops that have real lot traceability. Implants and instruments on a device master record generally are not.

How long does certification take?

Six to twelve months is a normal range from decision to certificate for a shop that already runs ISO 9001, longer from a standing start. The audit is the short part. Building the records the audit reads is the long part.

Is the work actually more profitable?

The margin per hour is usually better and the volumes are usually smaller and repeating. Whether that nets out depends on whether you price the documentation. Shops that quote medical work at commercial rates plus a certificate tend to lose money politely for about two years.

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