Paul Industries builds and installs the process systems behind medical device and implant manufacturing: ISO 14644 cleanrooms for assembly and packaging, purified water and DI systems for rinsing, sanitary process piping, ultrasonic and parts-cleaning lines, and passivation of metallic implants to ASTM F86. Device work runs under 21 CFR 820 and ISO 13485 rather than the drug rules, which changes the documentation, the water grade and the passivation practice. We deliver the whole scope under one contract, nationwide.

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Quality system 21 CFR 820 and ISO 13485, not 21 CFR 211
Implant passivation ASTM F86, the surgical-implant practice
Typical water grade USP Purified Water or DI, rarely WFI
Typical cleanroom ISO 7 and ISO 8 for assembly and packaging
Largest US cluster Warsaw, Indiana, about a third of world orthopedic manufacturing
Services Cleanrooms, purified water, sanitary piping, parts cleaning, passivation

Why device manufacturing is not just pharmaceutical work with a different label

Contractors who work mainly in pharmaceuticals tend to import drug-plant assumptions into device projects, and it shows up as cost that buys nothing. Three differences matter most.

The quality system is different. Devices sit under 21 CFR 820, the Quality System Regulation, and almost always ISO 13485 alongside it. That is a design-controls and process-validation framework rather than the batch-record framework of 21 CFR 211. Practically, it means your process equipment needs installation and operational evidence tied to a validated process, not a batch genealogy, and it means the auditors asking about our work are usually notified-body auditors rather than FDA drug investigators.

The water is usually not WFI. Most device rinsing, ultrasonic cleaning and final wash steps run on USP Purified Water or on deionized water specified by resistivity. Endotoxin control matters for implants and for anything entering the bloodstream, but the default assumption of a hot WFI loop with a 0.25 EU/mL limit is frequently overkill for a device line and adds significant capital and running cost. The right question is what the cleaning validation actually has to demonstrate.

Implant passivation follows a different standard. ASTM F86 is the practice written for metallic surgical implants, covering surface preparation and marking. It is not interchangeable with ASTM A967, the general stainless passivation specification used on process equipment. On an implant line you often need both: A967 or A380 for the system that touches the parts, and F86 for the parts themselves.

What we build for device manufacturers

  • Cleanrooms ISO 7 and ISO 8 assembly, packaging and sterile-barrier rooms built to ISO 14644-1, with certification and periodic recertification to ISO 14644-2.
  • Purified water and DI systems USP Purified Water generation, storage and loop distribution, or resistivity-specified DI for rinse and ultrasonic duty.
  • Sanitary process piping Orbital-welded stainless to ASME BPE where product contact demands it, with weld logs and borescope records.
  • Passivation ASTM F86 for metallic implants, ASTM A967 with ASTM A380 cleaning for the process systems around them, with full documentation.
  • Turnkey process systems One contract covering envelope, mechanical, water, piping and qualification support, so interfaces do not fall between vendors.

Standards that govern device process systems

Quality system and process validation
21 CFR 820 and ISO 13485, with process validation expectations following the GHTF/IMDRF approach rather than drug-style batch validation.
Implant surface preparation
ASTM F86 for metallic surgical implants; ASTM A967 and ASTM A380 for passivation and cleaning of the stainless process equipment serving the line.
Cleanroom and environment
ISO 14644-1 for classification and ISO 14644-2 for monitoring, with viable and non-viable limits set by the product’s sterile-barrier and bioburden strategy.
Water
USP Purified Water per USP 643 and USP 645 where a compendial grade is specified, otherwise DI to a stated resistivity, justified by cleaning validation.

Where device manufacturing is concentrated

Device work clusters far more tightly than pharmaceutical work, which matters for crew scheduling and for how quickly we can get to a live line.

Major US medical device manufacturing clusters
ClusterWhat is made thereProcess-system implication
Warsaw, IndianaOrthopedic implants; roughly a third of world orthopedic manufacturing and about 60 percent of replacement hips and kneesHeavy demand for implant passivation to ASTM F86, ultrasonic cleaning lines and DI rinse water.
Minnesota (Medical Alley)Cardiovascular, neuromodulation and diagnosticsISO 7 assembly suites, tight particulate control, and cleanroom recertification cycles.
Massachusetts and ConnecticutDevices, diagnostics and combination productsHigh industrial electricity cost makes cleanroom air-change strategy a real ten-year cost decision.
CaliforniaDiagnostics, imaging and cardiovascularHighest continental power cost, so recirculation strategy and chiller efficiency dominate operating cost.
Utah and FloridaDevices alongside a large supplement and contract-manufacturing baseMixed-regime sites where device and 21 CFR 111 operations share utilities and need clear segregation.

Why Paul Industries

We are a nationwide single-source contractor, which on a device project means the cleanroom envelope, the water system, the piping and the passivation are all carried by one party. Device lines tend to fail at exactly those interfaces, where the cleanroom installer, the water vendor and the cleaning-line supplier each assume someone else owns the rinse-water specification or the final passivation record. Holding the whole scope removes that argument before it starts.

Standards referenced: ASTM F86 · ASTM A967 · ISO 14644-1 · ISO 13485 · 21 CFR 820 · ASTM A380 · 21 CFR 211 · ISO 14644-2 · ASME BPE · 21 CFR 111 · EIA electricity price data · EU GMP Annex 1 (EudraLex Vol. 4)

Services we provide for medical device manufacturers

Medical device cleanroom requirements are set by the sterilization validation and the Quality Management System Regulation rather than by a fixed class, so our device work starts by fixing the class the product actually needs. For device and implant plants we provide: medical device cleanroom construction at ISO 7 or ISO 8 for assembly and packaging, with a controlled-not-classified alternative where no validation assumes a particle limit; passivation of implants and instruments to ASTM F86 alongside pipe passivation of the plant’s utilities to ASTM A967; purified water and WFI systems for cleaning, rinsing and reprocessing validation; sanitary process piping and utility process piping; autoclave and sterilizer installation; process filtration; commissioning and qualification of the utilities behind a process validation; and equipment setting and rigging for molding, machining and packaging lines.

The device requirement set, reduced to five lines

ElementMedical device and implant manufacturing practice
Governing regulation and clause21 CFR 820, the Quality Management System Regulation, which incorporates ISO 13485:2016 by reference. Infrastructure sits at clause 6.3, work environment and contamination control at 6.4, process validation at 7.5.6, and sterilization process validation at 7.5.7.
Typical water gradeUSP Purified Water, or deionized water specified by resistivity at the point of use, commonly in the 1 to 18 megohm-cm band. WFI appears only where an endotoxin limit is carried directly; more often that limit is met by validated rinse and a finished-device endotoxin test.
Typical cleanroom classISO 14644-1 Class 8 for packaging, pouch sealing and bagged storage. Class 7 for implant and fluid-path assembly. Localized Class 5 under unidirectional flow where a critical surface is exposed. The class is selected from a bioburden and sterilization argument, not handed down by a regulation.
Typical documentation packageTraceability back into the design history file, installation and operational evidence tied to a validated process rather than to a batch record, cleaning and rinse residue limits with the analytical method named, water monitoring trend data, and a passivation certificate for implant lines.
Materials and surface finish316L on water, rinse and ultrasonic lines. Implant passivation runs to ASTM F86, the surgical implant practice, while ASTM A967 and ASTM A380 cover the process equipment around it. Finish is usually written as an Ra ceiling for cleanability rather than as an ASME BPE designation.

The line worth arguing over is the cleanroom class, because nothing in the quality system names one. You select it, then defend it with bioburden data and the sterilization modality you intend to use. A device bagged and sealed in Class 8 and then sterilized by ethylene oxide or gamma has a completely different air requirement from an implant assembled with an exposed critical surface. Contractors who carry a default ISO 7 specification from drug work sell air changes, HEPA coverage and monitoring points that buy no product benefit and then cost money every year in filters and fan energy. Build the classification from the bioburden limit backwards and the mechanical scope gets smaller and easier to qualify.

Modular cleanroom shell vs stick-built construction

A modular system arrives as engineered wall and ceiling panels with integrated services, set on a prepared slab. Stick-built means steel studs, board, joint treatment and a coating applied in place. Both can pass the same classification test, so the decision rests on what happens after handover.

Modular wins where the room layout will change. Panels come apart, a wall moves, and the seal detail that made the room classifiable is a manufactured joint rather than a site-applied one. It also compresses schedule, because panel fabrication runs while the slab and the air handling plant are still being built. The cost is a higher material price and a design freeze that has to happen early.

Stick-built wins on first cost and on awkward existing buildings, where a panel system has to be cut around structure it was never drawn for. The exposure is the coating: every penetration, corner and control joint is a field-applied seal, and the room stays classifiable only as long as that coating does. Device sites that wash down or run aggressive disinfectants tend to regret it around year five. The installed ranges for both approaches sit side by side on the cleanroom cost guide.

What a device manufacturer should require from a mechanical contractor

  • A stated basis for the classification being built, traceable to bioburden limits and the sterilization method, not to a drug-plant habit.
  • Passivation quoted to ASTM F86 for implants specifically, with the named test method and the record that will be issued.
  • DI water loop design showing resistivity at each point of use under simultaneous draw, not just at the polisher outlet.
  • Ultrasonic and parts-washing lines priced with drainage, rinse water quality and dry-off, since the rinse step is what the residue limit actually tests.
  • Recovery testing written into the OQ, so the room is shown to return to class within a stated time after a disturbance.
  • Pressure cascade and door interlock logic documented as a sequence, including what happens on power loss.
  • Qualification documents structured for a notified body auditor rather than for an FDA drug investigator, because those two read very different evidence.

Call 201-450-8280 or send drawings through the quote page.

Published cleanroom ranges for device space

From the cleanroom cost guide, installed and budgetary: ISO 8 runs $100 to $250 per sq ft as a modular or prefabricated build and $385 to $650 per sq ft inside a full GMP facility build. ISO 7, the usual assembly class, runs $250 to $450 per sq ft modular against $550 to $850 per sq ft in a full build. The panel systems themselves are broken out separately on that page: cleanroom-rated insulated metal panel at $22 to $34 per sq ft, a modular cleanroom wall system at $45 to $85 per sq ft, and stick-built drywall with epoxy coating at $18 to $32 per sq ft. The spread between the last two is the number to weigh against a decade of maintenance.

Frequently asked questions

Does a medical device facility need Water for Injection?

Usually not. Most device manufacturing runs on USP Purified Water or on deionized water specified by resistivity, because the cleaning validation has to demonstrate removal of manufacturing residues rather than control of a parenteral endotoxin limit. WFI becomes relevant for implants with bloodstream contact or for combination products carrying a drug. Specifying a hot WFI loop by default adds substantial capital and operating cost that a device line often cannot justify.

What is the difference between ASTM F86 and ASTM A967 passivation?

ASTM F86 is the practice written specifically for metallic surgical implants, covering surface preparation and marking of the implant itself. ASTM A967 is the general specification for chemical passivation of stainless steel parts and equipment, normally paired with ASTM A380 for cleaning and descaling. They are not interchangeable. On an implant line you frequently need both: F86 governs the product, A967 and A380 govern the process equipment that touches it.

What cleanroom class does device assembly usually require?

ISO 8 is common for general assembly and packaging, and ISO 7 for higher-risk assembly or sterile-barrier operations. The class is driven by the product’s bioburden strategy and by whether terminal sterilization follows, not by a fixed rule. A terminally sterilized device can often be assembled in a less stringent environment than one relying on aseptic presentation, which is where a lot of unnecessary cost gets designed in.

How does 21 CFR 820 change what you have to document?

The Quality System Regulation is built around design controls and process validation rather than batch records. For process equipment that means installation and operational qualification tied to a validated manufacturing process, with the equipment evidence feeding the device master record. In practice the deliverables look similar to pharmaceutical IQ/OQ/PQ, but the justification is written against process capability and design inputs rather than against a batch genealogy.

Do you work in Warsaw, Indiana and the orthopedic cluster?

Yes. We are a nationwide contractor and Warsaw is one of the densest concentrations of implant manufacturing anywhere, holding roughly a third of world orthopedic production and about 60 percent of replacement hip and knee manufacturing. The recurring scopes there are implant passivation to ASTM F86, ultrasonic and parts-cleaning lines, DI rinse water and the sanitary distribution feeding them.

Can you passivate implants and the equipment that handles them?

Yes, and they are treated as two separate documented activities. Implants follow ASTM F86 for surface preparation, while the tanks, piping and fixtures that contact them are cleaned per ASTM A380 and passivated per ASTM A967. We record procedure, chemistry, contact time, temperature, rinse quality and the final verification for each, because an auditor will ask which standard applied to which surface.

What does ISO 13485 require of a contractor working on our line?

ISO 13485 makes you responsible for controlling suppliers whose work affects product quality, so your contractor has to produce evidence you can put in front of a notified body. That means traceable materials, qualified welders, weld and borescope records, passivation documentation and clean handover packages. We build the documentation as a deliverable rather than assembling it retrospectively, because retrospective packages are where supplier audits find gaps.

How is cleaning validation different on a device line?

Device cleaning validation usually targets manufacturing residues such as cutting fluids, machining debris, polishing compounds and handling contamination, rather than active pharmaceutical ingredient carryover. That changes the analytical methods and the acceptance criteria, and it changes the rinse-water grade you can justify. It also makes the design of the ultrasonic and rinse sequence part of the validation argument rather than a purely mechanical choice.

Do you build ultrasonic and parts-cleaning lines?

Yes, including the water, drainage, ventilation and controls around them. The part most often underestimated is the rinse side: final rinse water quality, how it is delivered, how it drains and how it is sampled will determine whether the cleaning validation passes. We specify the rinse loop as part of the line rather than treating it as a utility connection made later by someone else.

Can you support a combination product that is part device, part drug?

Yes, and those projects need the stricter of the two regimes applied deliberately rather than by accident. A combination product can pull 21 CFR 211 requirements, WFI-grade water and Annex 1 thinking onto what otherwise looks like a device line. The engineering decision worth making early is which parts of the facility genuinely need the drug-side standard, so the whole plant is not built to it.

How long does a cleanroom recertification take?

For a typical ISO 7 or ISO 8 suite, testing itself is usually a matter of days, but the sequencing matters more than the duration. Recertification to ISO 14644-2 needs the room in a defined state, so the real planning question is how much production time is lost and whether testing can run across a shutdown. We schedule recertification against your production calendar rather than ours wherever the timing allows.

Do high electricity prices matter for a device cleanroom?

They matter wherever the room runs continuously, and they matter a great deal in the coastal clusters. California industrial electricity averaged 21.53 cents per kilowatt-hour in 2024 and Massachusetts 18.19, against a national average of 8.13 (EIA). Over ten years the air-change strategy on an ISO 7 room in those states can cost more than the room did to build, which makes recovery testing and recirculation design worth real engineering attention.

What goes wrong most often on device process-system projects?

Interfaces. The cleanroom contractor assumes the water vendor owns the final rinse specification, the water vendor assumes the cleaning-line supplier does, and the passivation record for the process equipment never gets written because nobody scoped it. None of these are hard engineering problems; they are ownership problems, which is the argument for holding the scopes under a single contract.

How do I get a quote for a device facility project?

Use the form on this page or call 201-450-8280. Useful things to have ready are the device and whether it is terminally sterilized, the cleanroom class you believe you need, the rinse-water grade your cleaning validation assumes, and whether any implant passivation is in scope. If you have a user requirement specification or design inputs, send them; if not, we can help define scope before pricing.

What does 21 CFR 820 require that 21 CFR 211 does not?

It is the Quality System Regulation for devices, organised around design controls, production and process controls, and corrective and preventive action rather than batch-based drug manufacturing. Design history and device master records replace batch records, which changes what a contractor's documentation has to feed into.

How does ISO 13485 affect a contractor working on a device line?

It puts requirements on supplier control, so the manufacturer has to qualify and monitor the contractor, and the contractor's records have to be acceptable as supplier evidence. In practice that means traceable materials, documented procedures and change notification rather than a separate certification for every trade.

What is ASTM F86 and when does it apply?

It covers surface preparation and marking of metallic surgical implants, including passivation practice for implant materials. It applies to the device itself rather than to the process equipment around it, which is generally treated under ASTM A967 and ASTM A380.

Does titanium need passivation?

Titanium forms a stable oxide naturally, so it is not passivated in the sense stainless is. What it needs is removal of embedded iron and processing contamination, which ASTM F86 addresses through its cleaning and surface preparation practices. Treating titanium with a stainless passivation recipe is not the same operation.

Why does Nitinol need special handling?

Its surface chemistry and the nickel content near the surface are central to its biocompatibility, so surface treatment affects device performance rather than only corrosion resistance. Processing is specified tightly and verified analytically, not judged by appearance.

What water grade does a device manufacturer need?

Purified water is common for final rinse of implants and components, with the specification set by the cleaning validation and the residue limits it has to demonstrate. Water for Injection is generally not required unless the device is a combination product with a parenteral drug component.

How is particulate controlled on an implant line?

Through filtered purified water in the final rinse, controlled drying, packaging in a classified environment, and handling procedures that avoid reintroducing particulate. Particulate limits frequently drive the cleanroom classification more than microbial concerns do.

How does the sterilisation method affect facility design?

Ethylene oxide requires aeration space and emissions control, radiation is usually contracted out and needs only logistics, and steam requires a sterilisation suite with clean steam. The choice changes the building substantially.

What effluent does a device cleaning line produce?

Spent aqueous cleaning solution containing machining fluids, metal fines and detergents, which usually needs treatment before discharge. It is the utility most often overlooked when a cleaning line is purchased as a standalone machine.

Can a combination product be supported as both device and drug?

Yes, and the facility has to satisfy both frameworks at the points where each applies. That usually means device quality system controls on the device portion and drug cGMP on the drug portion, with the interface defined explicitly rather than left to interpretation.

What cleanroom requirements apply to sterile barrier packaging?

Packaging and sealing of the sterile barrier system is generally performed in a controlled environment, with the classification set by the risk assessment for the device and the sterilisation method. It is often the tightest classification on the site.

Planning a device or implant line?

Tell us the product, the quality system it runs under and the date it has to be qualified. We will tell you what is realistic. Call 201-450-8280 or use the form below.

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