Precision Medical Parts CNC Milling

Medical Machining Parts
January 14, 2026
Brief: We show the practical steps and results so you can judge suitability quickly. This video demonstrates the precision CNC milling process for 316L stainless steel capillary tube medical filling needles. You'll see how advanced micro-machining creates sharp, precise tips and integrated features for sterile liquid transfer in pharmaceutical and laboratory applications.
Related Product Features:
  • Precision-engineered from 316L stainless steel capillary tubing for superior corrosion resistance and biocompatibility.
  • Advanced CNC milling creates integrated needle assemblies with sharp beveled, blunt polished, or specialized tip geometries.
  • Electropolished internal lumen ensures smooth, non-stick fluid flow with Ra ≤ 0.2 µm surface finish.
  • Customizable outer diameter from 0.5mm to 2.0mm and inner diameter from 0.2mm to 1.5mm for specific flow requirements.
  • Integrated Luer lock connectors and body features milled for seamless assembly into medical devices.
  • Validated for Gamma irradiation and Ethylene Oxide sterilization with sterility assurance level of 10⁻⁶.
  • Full ISO 10993 biocompatibility certification and complete material lot traceability.
  • High-pressure rating suitable for demanding pharmaceutical filling and diagnostic applications.
FAQs:
  • What sterilization methods are compatible with these CNC milled filling needles?
    These 316L stainless steel capillary tube needles are validated for both Gamma Irradiation (25 kGy) and Ethylene Oxide (EtO) sterilization methods, achieving a sterility assurance level of 10⁻⁶ for medical and pharmaceutical applications.
  • Can the needle tip geometry be customized for specific applications?
    Yes, through precision CNC milling and grinding, we can create sharp beveled points for septum piercing, blunt polished ends for cannula applications, or specialized geometries like side-bore and deflected tips to meet your specific fluid direction requirements.
  • What are the key advantages of using 316L stainless steel for medical filling needles?
    316L stainless steel offers superior corrosion resistance, especially to chlorides, and excellent biocompatibility compliant with ISO 10993 standards. Combined with CNC milling, it enables the creation of robust, integrated components that maintain sterile integrity and reliable performance with sensitive medical fluids.
  • How is the internal lumen finished to ensure consistent fluid flow?
    The internal bore undergoes electropolishing to achieve an exceptionally smooth surface finish of Ra ≤ 0.2 µm, which prevents protein adhesion, ensures consistent fluid flow, and facilitates easy cleaning and sterilization procedures.