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CNC Milled Ruhr Joint Spray Needle

CNC lathe milling
February 01, 2026
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Brief: In this walkthrough, we highlight key design ideas and how they translate to performance. Watch as we demonstrate the CNC milling process of the 316L Stainless Steel Experimental Spray Needle with Luer Joint, showcasing its monolithic construction, precision fluid path, and secure Luer lock connector for demanding laboratory applications.
Related Product Features:
  • Monolithic 316L stainless steel construction ensures maximum pressure integrity and eliminates weak points from assembly.
  • Precision CNC-milled Luer lock connector provides a secure, leak-proof seal with standard laboratory syringes and tubing.
  • Electropolished internal lumen with Ra ≤ 0.4 µm promotes laminar flow and prevents contamination.
  • Customizable tip geometries and orifice sizes from 0.05 mm to 1.0 mm for specific spraying or jetting applications.
  • Excellent chemical compatibility with acids, bases, and solvents due to 316L stainless steel and ASTM A967 passivation.
  • High-pressure rating exceeding 5000 psi, making it suitable for analytical instruments like HPLC and GC/MS.
  • Available in various outer diameters (1.5-6.0 mm) and lengths (20-100 mm) to fit diverse experimental setups.
  • Cleanroom packaged and optionally sterilizable via autoclave, ETO, or gamma radiation for laboratory use.
FAQs:
  • What are the advantages of the monolithic construction?
    The one-piece design eliminates joints and adhesives, providing superior pressure integrity, preventing leaks, and ensuring full chemical compatibility throughout the fluid path.
  • Is this spray needle compatible with standard laboratory syringes?
    Yes, it features a precision CNC-milled female Luer lock connector per ISO 80369-7, ensuring a secure and leak-proof fit with standard male Luer lock syringes and tubing.
  • Can the internal diameter and tip geometry be customized?
    Absolutely. The internal lumen diameter can be customized from 0.1 mm to 2.0 mm, and the tip can be machined to various geometries like conical taper for jetting or flat bevel for spraying, with orifice sizes from 0.05 mm to 1.0 mm.
  • How is the chemical resistance ensured for this needle?
    The 316L stainless steel material offers excellent inherent corrosion resistance, which is further enhanced by surface passivation per ASTM A967, maximizing protection against a wide range of acids, bases, and solvents.
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