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CNC Milling Small Parts 304 316L Stainless Steel

CNC lathe milling
January 02, 2026
Category Connection: CNC Lathe Milling
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#CNC Precision Milling #CNC Precision Milling Services #CNC Milling Services
Brief: In this video, we take a focused look at the specifications and what they mean in practice for precision CNC milling of 304 and 316L stainless steel small and micro parts. You'll see how our micro-machining capabilities produce components with features as small as 0.1mm, ideal for medical, optical, and electronics applications where miniaturization and accuracy are critical.
Related Product Features:
  • Manufactured from AISI 304 or medical-grade AISI 316L stainless steel for excellent corrosion resistance and biocompatibility.
  • Specializes in producing ultra-precision parts with overall dimensions typically under 10mm and feature sizes down to 0.1mm.
  • Achieves high-precision tolerances of ±0.01mm standard, with ±0.002mm possible for select critical features.
  • Capable of creating complex geometries including micro-threads from M0.6, thin walls of ~0.05mm, and intricate 3D contours.
  • Utilizes micro-precision CNC Swiss-type lathes and 5-axis micro-milling machines with tooling down to Ø0.1mm.
  • Provides superior surface finishes with Ra ≤ 0.2 µm standard and can achieve Ra < 0.1 µm with polishing.
  • Includes comprehensive quality inspection using vision measuring systems, optical profilers, and specialized micro-CMMs.
  • Offers medical-grade post-processing including electropolishing and cleaning in ISO Class 5 cleanroom environments.
FAQs:
  • What are the key differences between 304 and 316L stainless steel for these micro parts?
    AISI 304 stainless steel offers cost-effective performance with good corrosion resistance, suitable for general applications. AISI 316L is medical-grade, providing superior corrosion and chemical resistance along with proven biocompatibility, making it ideal for medical implants and devices requiring stringent material performance.
  • What is the smallest feature size you can machine on these micro components?
    We can machine minimum bore diameters of approximately 0.1 mm and achieve minimum wall thicknesses around 0.05 mm, depending on the specific design. We also produce micro-threads starting from M0.6 and smaller using specialized micro-machining processes.
  • What quality control measures are in place for these precision micro parts?
    Our quality control includes inspection with advanced Vision Measuring Systems, Non-Contact Optical Profilers, High-Magnification Microscopy, and Specialized Micro-CMMs. We provide detailed inspection reports with dimensional data, microscopic images, and surface roughness measurements, all under an ISO 13485 certified Quality Management System for medical components.
  • Are these parts suitable for medical implant applications?
    Yes, particularly parts made from AISI 316L stainless steel, which is supplied with ISO 10993 biocompatibility test reports. These components are manufactured under an ISO 13485 certified system and can undergo medical-grade finishing like electropolishing for enhanced corrosion resistance and cleanability.
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