Medical device OEMs rarely move a machined part to a new country for price alone. A supplier change costs engineering time: a new first article, updated supplier files, a revised quality agreement and, for some parts, new verification work on the OEM side. The useful question is not “is Vietnam cheaper” but “which of my parts can a Vietnamese shop make to drawing, document properly and ship on time, with enough margin to justify the switch.”
This guide looks at medical device machining in Vietnam from the buyer’s side: why OEMs look at the country, which parts fit, what to verify at a shop, where regulatory responsibility sits, how shipping works, and how Medical Device Machining routes an RFQ to a shop that fits the part.
Why OEMs look at Vietnam
Supply chain diversification
Over the last several years, many OEMs in the US, EU and Japan have added a second source for machined components outside their main supplier country. The drivers are familiar: tariff changes, freight disruptions, and customer or board requirements for dual sourcing on critical parts. For a medical device company, a second qualified source for an instrument component is also a continuity measure. If one supplier has a fire, a capacity crunch or an export problem, the assembly line keeps running.
The southern Vietnam industrial base
Most export-oriented precision machining capacity sits in the south: Ho Chi Minh City and the industrial parks of Binh Duong and Dong Nai. These parks host foreign-invested plants in electronics, automotive and industrial equipment, and around them a layer of local CNC shops supplies fixtures, parts and subassemblies. Vietnam’s machining sector as a whole has shipped to buyers in Japan, Korea, the US and Europe for years, so export packaging, English drawings and customer inspection requirements are normal working conditions rather than exceptions.
In practice, 5-axis machining centers, Swiss-type lathes, heat treatment, finishing vendors and material stockists are within a short drive of each other. Export freight moves through Tan Son Nhat airport and the Cat Lai and Cai Mep port areas.
Cost structure
The pattern is consistent across most part types:
- Machinist, programmer and inspector labor costs are well below the US, Western Europe and Japan.
- Titanium bar and medical grade PEEK are largely imported, so material cost is close to world prices. Savings come from machining time, finishing, inspection labor and overhead, not from material.
- For parts where material is most of the price, such as a large titanium block with light machining, the gap to a domestic shop is smaller.
- For parts with long cycle times, many setups and tight inspection, the gap is larger.
Vietnam also has trade agreements with the EU (EVFTA) and is a member of CPTPP and RCEP. Whether a specific part qualifies for preferential duty depends on its HS code and rules of origin, so confirm with your customs broker before building it into a cost model.
How the sourcing options compare
| Option | Strengths | Trade-offs | Typical fit |
|---|---|---|---|
| Domestic shop (US, EU, Japan) | Same time zone, easy audits, short transit | Highest labor and machine-hour cost, capacity often tight | Launch builds, frequent design changes, very small lots |
| Mexico | Close to US, ground freight, USMCA framework | Precision medical capacity concentrated in a few regions, costs rising | US OEMs wanting nearshore for mid volumes |
| China | Very large supplier base, deep material supply | Tariff exposure for US buyers, concentration risk, IP concerns for some OEMs | Established parts with long-term suppliers |
| Vietnam, direct search | Lower cost than domestic, growing export base | Finding and vetting shops takes time, language and visit logistics | OEMs with a local team or sourcing office |
| Vietnam, through a matching service | Drawing reviewed once and routed to shops that fit, one point of contact at the RFQ stage | Buyer still qualifies and audits the chosen shop | OEMs testing a second source without a local team |
Parts that fit, and parts that need more thought
Within the capability window of the partner shops, these part families fit well:
- Surgical instrument components: forceps jaws, retractor blades, drivers, drill guides, cutting blocks.
- Orthopedic hardware: bone screw prototypes, plate trial components, instrument cases, fixation hardware.
- Dental abutments in prototype and small batch quantities.
- Diagnostic equipment housings, fluid-handling manifolds, optical mounts and valve seats.
| Part family | Typical materials | What drives cost | Notes |
|---|---|---|---|
| Instrument components | 17-4 PH, 316L | Setups, jaw serrations, heat treat | Passivation per ASTM A967 common |
| Orthopedic hardware | Ti-6Al-4V (ASTM F136 when specified), Ti Grade 2 | 5-axis time, thread forms, inspection | Laser marking on request |
| Dental abutments | Ti Grade 5 | Small features, interface tolerance | Interface geometry confirmed per drawing |
| Housings and manifolds | 316L, POM, PEEK | Internal passages, deburring | Leak test requirements must be stated |
| Optical mounts, valve seats | 316L, PEEK, PTFE | Flatness, surface finish | Ra 0.8 µm best case as machined |
Parts that need more thought: implantable components where your quality plan requires final cleaning and packaging in a controlled environment at the supplier, and very high annual volumes that belong on dedicated automated lines. Many OEMs keep final cleaning, packaging and sterilization in-house or at a contract sterilizer and buy the machined part to a defined cleanliness condition. If that is your model, say so in the RFQ.
Regulatory responsibility stays with the device maker
This point shapes the whole supplier relationship. Under FDA’s 21 CFR Part 820, which since February 2026 incorporates ISO 13485:2016 by reference as the Quality Management System Regulation, and under the EU MDR, the manufacturer of record is the device maker.
The device maker owns design controls, process validation where output cannot be fully verified, biocompatibility, cleaning and sterilization validation, labeling and regulatory submissions such as a 510(k) or MDR technical documentation. A machine shop is a supplier. It makes parts to your drawing and to the quality requirements you put on the purchase order, and you control it through purchasing controls: supplier evaluation, a quality agreement, incoming inspection and periodic review.
Medical Device Machining reviews drawings and matches them to shops. We do not act as the manufacturer and do not take over any part of the OEM’s regulatory role.
What to verify at a shop before the first order
Quality system
Ask which quality system the shop runs and, if a certificate is claimed, ask for a copy and check it with the issuing registrar. Beyond the certificate, look at how the shop controls drawing revisions, segregates nonconforming parts, records corrective actions and keeps calibration records. If your supplier requirements call for ISO 13485 or ISO 9001, write that into the RFQ. We will tell you plainly if no shop we work with meets it.
Material traceability
Every lot should trace from the mill certificate, by heat number, through the traveler to the shipment. If the drawing calls ASTM F136 for Ti-6Al-4V, the bar must be bought to F136, not to a general aerospace spec. Medical grade PEEK should come with the resin and stock shape certificates. Ask to see a sample traveler and how the heat number follows cut blanks through the shop.
Inspection equipment
Look for a CMM with current calibration, optical comparator, height gauges, surface roughness tester, thread and pin gauges. Ask for a sample CMM report and a sample FAI package. The quality and documentation page lists what a standard package contains.
Confidentiality
A mutual NDA can be signed before any drawing review. Ask the shop how files are stored, who can access them, and whether any operation is subcontracted. Subcontracted finishing such as passivation or anodizing should be named on the traveler.
Customer audits
Confirm that the shop accepts on-site audits by your team or a third-party auditor before production release. A video walk-through is a reasonable first screen; an in-person audit before a production PO is standard practice for critical parts.
Capability window of the partner shops
These values describe what the shops we work with typically reach. Each is confirmed per drawing with the quote, never guaranteed in advance. More detail is on the capabilities page.
| Characteristic | Typical | Best case |
|---|---|---|
| Linear tolerance | ±0.01 mm | ±0.005 mm on 5-axis |
| Bore / shaft fit | Standard fits per drawing | H6 bore, h5 shaft, IT5 on suitable features |
| Surface roughness, as machined | Ra 1.6 µm | Ra 0.8 µm |
| GD&T verification | CMM, comparator, height gauge | Flatness, profile, runout, concentricity, perpendicularity on CMM |
| Prototype lead time, 1 to 10 pcs | 2 to 3 weeks incl. FAI | Confirmed per drawing |
| Small batch, 10 to 500 pcs | 3 to 5 weeks | Confirmed per drawing |
Secondary operations available through the shops include passivation per ASTM A967, electropolishing of 316L, Type II and III anodizing, and laser marking. PPAP-style documentation, such as a Level 3 package, is available on request and quoted separately.
Logistics basics
Two Incoterms cover most machined part shipments from Vietnam (see the Incoterms overview for full definitions):
- EXW (Ex Works): you or your forwarder collect at the shop. Suits buyers with an express courier account or an established forwarder. Note that under EXW the buyer formally carries export clearance, so confirm your forwarder handles it.
- FOB Ho Chi Minh City: the shop clears export and delivers to the vessel at the named port. Suits sea shipments of larger batches.
Prototypes and small batches usually move by express air freight, which typically reaches major hubs in the US, EU and Japan within a few business days. Larger batches with less time pressure go by sea consolidation. Ask for parts to be bagged individually or in trays, with thread protectors and corrosion inhibiting packaging for steel. Shipping documents are the commercial invoice, packing list, certificate of conformance, material certificates and, if you are claiming preferential duty, a certificate of origin.
How the matching process works
- You send the drawing through the RFQ form. A mutual NDA is signed first if you request it.
- We review material, tolerances, finish, quantities and documentation requirements, and respond within 24 business hours.
- The part is routed to the shops whose equipment and material experience fit it. Files are not shared with shops that are not assigned.
- You receive a quote with DFM feedback at no charge, including notes on tolerances or features that drive cost.
- After your approval, the shop builds prototypes with an FAI report. You then qualify the shop through your own supplier process, including audits and a quality agreement.
More on how we work is on the about page. Machine shops interested in joining the network can read for suppliers.
If you are still comparing countries, our guide to offshore medical device machining puts Vietnam next to China, Mexico, Malaysia and Costa Rica.
Sending your first RFQ
A complete package gets a faster and more accurate quote. Include:
- 3D model (STEP) and 2D drawing (PDF) with revision letter and tolerances.
- Material specification and grade, for example Ti-6Al-4V per ASTM F136 or 316L bar.
- Quantity per lot and estimated annual volume.
- Finish and secondary operations: passivation standard, electropolish, anodize, laser marking content.
- Documentation required: FAI, certificate of conformance, material certificates, PPAP-style package if needed.
- Supplier requirements such as a specific quality system certificate.
- Target date and preferred Incoterm.
When the package is ready, send your drawing through the RFQ form. The first response comes within 24 business hours.