316l Stainless Steel Experimental Spray Needle Cnc Milling Of Ruhr Joint

The 316L Stainless Steel Laboratory Spray/Liquid Jet Needle with CNC Milled Luer Connector is a precision-engineered, all-metal fluidic component designed for demanding experimental and analytical applications. This unit integrates a needle body optimized for liquid spraying or precise jetting with a robust, leak-proof Luer connector, all machined from a single piece of medical-grade 316L stainless steel via精密CNC milling.

The monolithic construction eliminates potential weak points from assembly, while the 316L material provides superior chemical resistance and corrosion stability. The CNC-milled Luer threads (typically Luer lock) ensure a perfect, secure fit with standard laboratory syringes or tubing, making it an ideal, durable tool for controlled fluid delivery in research, chromatography, and micro-dispensing.

• Material Preparation: A solid rod of certified 316L stainless steel is selected and cut to a suitable blank length.
• CNC Swiss Machining / Multi-Axis Milling: The blank is loaded into a精密CNC Swiss-type lathe or a multi-axis milling center. The machining process in a single setup includes:
  • Turning: Creating the primary outer diameters and tapers of the needle body and connector base
  • Milling the Luer Threads: Using live tooling, the precise, standardized Luer lock threads are cut onto the connector section
  • Drilling the Internal Lumen: A deep, straight hole is drilled or gun-drilled through the entire length to form the fluid channel
  • Forming the Tip/Orifice: The distal end is machined to form the specific spray/jet geometry
• Deburring & Internal Polishing: All machined edges are meticulously deburred. The internal bore is honed and/or electrophished to achieve a smooth, contaminant-free surface.
• Surface Passivation: The entire component undergoes chemical passivation per ASTM A967 to maximize corrosion resistance.
• Cleaning, Inspection & Marking: Final ultrasonic cleaning removes all residues. 100% inspection verifies critical dimensions. Laser marking is applied for identification.
• Packaging: Packaged clean and dry, suitable for laboratory use. Can be supplied non-sterile or sterilized.

• Analytical Chemistry: Sample introduction needles for GC/MS, HPLC, or ICP-MS requiring secure, metal-to-metal connection and precise spray tip for nebulization
• Microfluidic Research: Robust interface to connect syringes or pumps to microfluidic chips or lab-built apparatus
• Precision Dispensing: Laboratory-scale dispensing of reagents, solvents, or standards where secure Luer connection and specific jet profile are needed
• Spray Characterization Studies: Standardized, durable nozzle for studying droplet size, spray patterns, or jet breakup in fluid dynamics research
• Chemical Synthesis: Controlled addition of reactants in small-scale or automated synthesis setups