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| Brand Name: | yue lin sen |
| Model Number: | Y6622 |
| MOQ: | 100 pcs |
| Price: | 0.5-20 |
| Payment Terms: | T/T |
| Supply Ability: | 5000000pcs |
304 Stainless Steel Capillary Precision Laser Drilling Thread Experiment Spray Needle
This product is an ultra-precision microfluidic component designed for advanced research, analytical instrumentation, and pilot-scale applications requiring controlled, atomized spray generation from a threaded interface.
Mass Spectrometry (MS) Ion Sources: Electrospray Ionization (ESI) and Atmospheric Pressure Chemical Ionization (APCI) emitter needles for introducing liquid samples into the mass spectrometer.
Micro-Dispensing & Aerosol Research: Precision nozzles for generating monodisperse aerosol droplets in pharmaceutical inhaler testing, climate research, or micro-reactor systems.
Chromatography & Flow Chemistry: Nano-flow and micro-flow spray tips for coupling liquid chromatography (LC) with MS, or as reaction jet nozzles in lab-scale flow chemistry setups.
Additive Manufacturing & Coating: Micro-droplet jetting nozzles for 3D bioprinting, electronics printing, or applying functional coatings at a micro-scale.
Fuel Injection & Combustion Research: Model injector nozzles for studying spray patterns, droplet size distribution, and atomization physics in laboratory settings.
We fabricate high-performance experimental spray needles by integrating multiple advanced processes on 304 stainless steel capillary tubing. The core of the needle features a precision laser-drilled micro-orifice at the tip, typically with diameters in the tens to hundreds of microns, ensuring a consistent and symmetric spray cone. For secure and leak-free integration into laboratory apparatus, the needle incorporates a machined external thread (e.g., M3, M4, M6, 10-32 UNF) at the proximal end. The use of capillary tubing allows for excellent control over the internal diameter, which dictates flow resistance and laminar flow characteristics upstream of the orifice. These needles are ideal for R&D applications where parameters like orifice size, thread specification, and needle length need to be tailored to specific experimental conditions. They are supplied clean and ready for integration into custom manifolds or OEM devices.
| Category | Parameter | Details / Specification |
|---|---|---|
| Base Material | Tubing Material | 304 Stainless Steel Precision Capillary Tubing (UNS S30400) |
| Key Attributes | Excellent chemical compatibility, good mechanical strength, smooth internal bore. | |
| Needle Architecture | Tip Feature | Laser-drilled terminal orifice at the sealed tip of the capillary tube. |
| Proximal Feature | CNC-machined external thread for mounting into a matching threaded port or manifold. | |
| Flow Path | Straight, unobstructed internal capillary lumen leading to the laser-drilled orifice. | |
| Critical Dimensions | Capillary Outer Diameter (OD) | 0.5 mm to 2.0 mm (standard range). |
| Capillary Inner Diameter (ID) | 0.1 mm to 1.0 mm (defines flow rate & back-pressure). | |
| Orifice Diameter (d) | 15 µm to 200 µm (laser drilling capability). Most common: 50 µm - 100 µm. | |
| Thread Specification | Metric (e.g., M3x0.5, M4x0.7, M6x1.0) or Unified (e.g., 10-32 UNF). Custom threads available. | |
| Overall Length (OAL) | Custom, typically 20 mm to 100 mm from thread end to orifice tip. | |
| Threaded Section Length | Custom, typically 5 mm to 10 mm. | |
| Manufacturing & Precision | Orifice Drilling Process | Pulsed Fiber Laser Drilling or Femtosecond Laser Drilling for high circularity and minimal recast layer. |
| Thread Machining Process | Precision CNC Turning/Milling. | |
| Orifice Circularity & Tolerance | ≥ 95% circularity. Diameter tolerance: ±2 µm (for orifices >50µm). | |
| Orifice Taper/Angle | Can be drilled as a cylindrical hole or with a minor inlet/outlet taper for flow conditioning. | |
| Thread Tolerance | Standard: 6g for external threads. Ensures leak-tight connection with proper sealing. | |
| Concentricity | Orifice concentric to capillary OD: < 0.02 mm TIR. | |
| Surface & Finish | Internal Finish | Smooth as-drawn capillary finish. Electropolishing available for ultra-clean, hydrophilic surfaces. |
| External Finish | As-machined or lightly polished. Can be passivated per ASTM A967. | |
| Performance Characterization | Spray Characteristics | Produces a stable, conical spray pattern. Spray angle influenced by orifice geometry and pressure. |
| Flow Rate Compatibility | Designed for nano-liter to micro-liter per minute flow rates typical in analytical chemistry. | |
| Pressure Rating | Withstands typical HPLC/MS system pressures (up to several hundred bar). | |
| Quality & Documentation | Inspection | 100% visual inspection under microscope for orifice defects. Dimensional verification of thread and OD. |
| Orifice Validation | Sample microscopy images or orifice measurement data can be provided. | |
| Cleanliness | Ultrasonically cleaned in solvents, packaged in clean, anti-static bags. | |
| Documentation | Dimensional drawing/specification sheet, material certification. |
Address
Room 203, Building 2, Ande Alley, Changan Town, Dongguan City, Guangdong Province
Tel
86--13267262720
