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Precision Spray Needle 304 Stainless Steel

Medical Machining Parts
January 14, 2026
Category Connection: Medical Machining Parts
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Tags:
#Medical Needle #CNC Milling Parts #Cnc Medical Parts
Brief: Here’s a fast, informative look at what this solution does and how it behaves. In this video, you'll see a detailed demonstration of the 304 stainless steel CNC milling thread spray needle, showcasing its precision manufacturing process from bar stock to finished product. Watch as we explore its high-pressure fluid delivery capabilities, various spray pattern configurations, and applications across industrial and medical sectors.
Related Product Features:
  • Manufactured from solid 304 stainless steel bar stock using advanced CNC machining for superior structural integrity.
  • Features precision-machined external or internal threads for secure mounting in various applications.
  • Includes meticulously crafted internal channels and tip orifices designed for specific spray patterns or liquid streams.
  • Capable of operating under high-pressure conditions up to 1000+ bar for demanding industrial and medical uses.
  • Offers customizable orifice designs including round, slot, fan pattern, and multi-orifice configurations.
  • Provides high precision tolerances with orifice diameter accuracy within ±0.005 mm for consistent performance.
  • Features electropolished internal fluid paths with Ra ≤ 0.2 µm for smooth flow and clog prevention.
  • Suitable for diverse applications including adhesive dispensing, medical devices, analytical instrumentation, and fuel injection.
FAQs:
  • What are the main advantages of CNC milling these needles from solid bar stock versus using capillary tubing?
    CNC milling from solid 304 stainless steel bar stock provides greater design freedom and structural integrity, allowing for complex internal geometries not possible with simple tubing. This method enables the creation of precise internal channels, custom orifice shapes, and robust construction ideal for high-pressure applications.
  • What types of spray patterns can be achieved with these precision spray needles?
    These needles can produce various spray patterns including conical spray, flat fan, solid stream, and multi-orifice configurations. The spray angle and pattern are defined by the orifice geometry and can be customized to specific requirements such as 15°, 30°, or 80° fan angles based on application needs.
  • How does the surface finishing process benefit the performance of these spray needles?
    The standard passivation (ASTM A967) and optional electropolishing of internal passages create smooth surfaces with Ra ≤ 0.2 µm, which minimizes turbulence, reduces pressure drop, and prevents clogging. This ensures consistent fluid delivery and enhances compatibility with various chemicals, adhesives, fuels, and biological fluids.
  • What quality assurance measures are implemented during manufacturing?
    Each needle undergoes comprehensive quality checks including microscopic inspection of the orifice, CMM verification of critical dimensions, and flow/pressure/spray pattern testing on dedicated rigs. This ensures dimensional accuracy, concentricity within 0.02 mm TIR, and performance validation according to customer specifications.
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