Typical Applications
- ✓Surgical instrument components
- ✓Diagnostic and monitoring device housings
- ✓Dental and orthopedic trial parts
- ✓Lab automation and analysis equipment parts
- ✓Custom fasteners and fittings for medical assemblies
Process Capabilities
- ✓CNC Milling: 3-axis and 4-axis machining for device housings, instrument handles and complex enclosures
- ✓CNC Turning: Precision shafts, fittings, screw tips and bone screws with tight concentricity
- ✓Swiss Machining: Long, slender parts (surgical tools, guide wires) with minimal deflection
- ✓Micro-Machining: Small features, fine details and thin-wall geometries for miniature device components
- ✓Surface Finishing: Polishing, passivation and bead blasting for smooth, cleanable surfaces
Materials for Medical CNC Machining
Stainless steel 303/304/316, titanium (Ti-6Al-4V), aluminum and engineering plastics such as PEEK and Delrin — chosen for biocompatibility, sterilization compatibility and corrosion resistance.
Material Selection Guide
Stainless steel 316L is the most common medical-grade alloy due to its corrosion resistance and autoclave compatibility. Titanium Ti-6Al-4V is preferred for implant-adjacent components and instruments requiring MRI compatibility. PEEK offers radiolucency and biocompatibility for trial components and spacers. For diagnostic device housings, aluminum 6061 with clear anodize provides a clean, corrosion-resistant surface at a lower cost than stainless.
Tolerances & Precision
Standard tolerance ±0.1 mm covers most medical device housings and instrument handles. Precision tolerances to ±0.05 mm or tighter are achievable on mating surfaces and critical dimensions. For surgical instrument tips and orthopedic trial components, tolerances to ±0.02 mm may be required — these are reviewed at quotation based on part geometry and material. We recommend specifying tight tolerances only on functional mating surfaces to control cost.
How to Order
Medical device procurement follows a similar workflow: upload your 3D file and 2D drawing, receive DFM feedback and a quote, then approve for production. Prototype runs ship with a dimensional report for design verification. Once the design is frozen, the same setup data is used for production batches, ensuring consistency across orders. For regulated programs, material certificates and first-article inspection reports provide the traceability documentation your quality system requires.
Quality & Documentation
In-house dimensional inspection on every batch; material certificates and first-article inspection reports available on request. Passivation and other finishing options support sterilization requirements.
CNC Machined Parts by Material
Related Industries
Full Machining Capabilities
See the complete range of processes, finishes and tolerances on our CNC Machining Services page.
Frequently Asked Questions
Can you support prototype and production phases of a medical device program?
Yes. There is no MOQ for prototypes, and approved designs can scale to repeatable production batches with consistent inspection documentation.
Which finishes do you offer for medical parts?
Polishing, passivation and bead blasting are commonly requested for medical components. Finishing is quoted based on your drawing callouts.
What tolerance can you hold on stainless steel medical components?
Standard tolerance ±0.1 mm is typical for housings. Precision tolerances to ±0.05 mm are achievable on mating surfaces. For surgical instrument tips, tolerances to ±0.02 mm may be possible depending on geometry — reviewed case by case at quotation.
Can you machine PEEK and other engineering plastics for medical use?
Yes. PEEK, Delrin and other engineering plastics are part of our standard material range. Plastics require different tooling and cutting parameters than metals, so DFM feedback is especially important to confirm wall thickness, feature size and tolerance feasibility.
Do you support design iterations during the prototype phase?
Yes. No MOQ for prototypes means you can iterate quickly. Each revision is treated as a new quote with DFM feedback, so you always know the cost impact of design changes before committing.
What inspection documentation do you provide for medical parts?
Dimensional inspection report with every batch as standard. Material certificates (mill test reports) and first-article inspection reports are available on request. Surface finish and coating certificates can also be provided when finishing is applied.
How do you ensure consistency between prototype and production batches?
The same setup data, tooling parameters and inspection criteria used for the approved first-article are locked in for all production batches. Each batch ships with a dimensional report referenced against the first-article baseline, so any deviation is immediately visible.