Difficult-Alloy Precision CNC Machining
Precision CNC Machining for 316L Medical Parts
When developing medical devices, surgical instruments, or diagnostic equipment, the reliability of your components is non-negotiable. At AXALLOY Precision, we specialize in the CNC machining of complex 316L medical parts, supporting your engineering and procurement teams from initial prototype validation through controlled, low-volume production.
Because 316L stainless steel is notoriously tough and prone to work-hardening, it requires rigid setups, optimized tool paths, and strict process controls. We evaluate the geometry, tolerances, and surface requirements of your design before the first chip is cut, ensuring you receive parts that meet strict medical industry standards.
What You Gain by Partnering with AXALLOY
We understand that medical OEMs and engineering firms value process stability and documentation just as much as the physical part. Here is how our machining approach directly supports your project:
Audit-Ready Traceability
Medical manufacturing requires absolute material certainty. You receive comprehensive documentation, including Material Test Reports (MTRs), First Article Inspection (FAI) reports, and full dimensional inspection data. This means your quality team spends less time verifying parts and can confidently pass regulatory audits.
Reduced Assembly Friction with Tight Tolerances
Complex medical assemblies often feature thin walls, micro-threads, and precision interfaces. By utilizing our 5-axis milling and Swiss CNC turning capabilities, we machine multi-feature rotational and prismatic parts in fewer setups. You get components with position tolerances down to 0.010 mm, ensuring your parts fit together perfectly on the assembly line without manual rework.
Hygienic, Ready-to-Use Surfaces
Surface finish is critical for 316L medical parts to prevent bacterial growth and ensure biocompatibility. Through precision machining, grinding, and specialized deburring, we achieve surface finishes down to Ra 0.2 μm. You receive parts with smooth, burr-free surfaces that are ready for passivation or immediate clean-room assembly.
How Our Speed Accelerates Your Time-to-Market
We don't just process orders quickly; we align our manufacturing speed with your development cycles.
In the medical device industry, regulatory approvals (like FDA or CE marks) depend on physical testing. Our 5–10 business day prototype lead time means your engineering team gets physical 316L parts in hand faster to perform design validation, functional testing, and clinical trials.
Once your design is locked, our transition into low-volume manufacturing (20–500 parts) takes 10–20 business days. This controlled scaling ensures your supply chain remains stable, allowing you to meet initial market demand without committing to massive inventory overhead.
5–10
Business Days
Prototype Lead Time
10–20
Business Days
Production Lead Time
Machining Capabilities for 316L Stainless Steel
Whether you need intricate surgical pins, durable pump housings, or complex fluid manifolds, our equipment is configured for high-precision medical components.
| Parameter | Standard Capability |
|---|---|
| Machining Processes | 3/4/5-Axis Milling, Mill-Turn, Swiss Turning, Wire/Sinker EDM, Grinding |
| Precision Dimensional Tolerance | ±0.005 mm |
| Position Tolerance | Down to 0.010 mm |
| Minimum Wall Thickness | 0.5 mm |
| Minimum Machined Hole | Ø0.5 mm |
| Minimum Thread Size | M0.8 (Swiss Turning) / M1.0 (Milling & Turning) |
| Precision Machined Finish | Ra 0.8 μm |
| Ground Surface Finish | Down to Ra 0.2 μm |
| Supported Volumes | Prototypes (1–20), Low-Volume (20–500), Batch (500–10,000+) |
| Prototype Lead Time | 5–10 business days |
| Standard Production Lead Time | 10–20 business days |
Quality Control & Medical Documentation
Your 316L medical parts are inspected in our temperature-controlled facility using calibrated CMM and optical measurement equipment. We provide the exact documentation your supplier quality engineers require.
Documentation & Inspection Availability
-
✓
Material Test Report (MTR)
Standard / Available
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✓
Certificate of Conformance (CoC)
Standard / Available
-
✓
First Article Inspection (FAI)
Available
-
✓
Full Dimensional Inspection
Available (CMM up to 1.8 + L/300 μm accuracy)
-
✓
Surface Roughness Report
Available
-
✓
Passivation / Coating Certificates
Available
-
✓
Material & Lot Traceability
Available
Temperature-Controlled Inspection Facility
Our metrology lab maintains strict environmental controls to ensure measurement accuracy and repeatability for your most critical 316L medical components.
- Calibrated CMM equipment
- Optical measurement systems
- Full dimensional verification
Start Your Project Today
If you are transferring a project from an underperforming supplier, or need a reliable manufacturing route for a new medical device, we are ready to review your requirements.
Our engineering team will provide a thorough drawing review and Design for Manufacturability (DFM) feedback to help you optimize production costs without sacrificing quality.
Ready to get started?
Send us your 3D CAD models (STEP, STP, IGES) and 2D drawings (PDF with critical tolerances and documentation requirements).
We accept files up to 500 MB per RFQ.