Deconstructing 8 Core Processes: The Production Logic Behind The V3 Infusion Needle

A qualified V3 Infusion Needle appears simple-a hex base and a dual-port tip-but conceals a sophisticated production logic spanning 8 core stages: material screening, precision machining, forming, welding, surface treatment, cleaning, inspection, and packaging. This mature system, refined over years in the precision parts industry, represents the manufacturer's core competitiveness.

1. Raw Material Screening:​ Only premium 304 stainless steel tubes are sourced. Incoming batches undergo sampling for hardness and composition analysis to block substandard materials.
2. Base Machining:​ The Citizen Cincom L12-1M7 Swiss lathe machines the hex profile and ASME B1.21M-compliant threads. High-precision machining ensures tight thread engagement, preventing loosening or leakage during high-speed operation.
3. Tip Forming:​ A two-die rotary swager cold-forms the dual orifices. Unlike drilled holes, swaged bores are smooth, ensuring viscous oils flow freely without clogging.
4. Laser Welding & Marking:​ High-energy laser welding fuses the base and tip with minimal thermal distortion. A permanent "V3" laser mark facilitates future traceability.
5. Electropolishing:​ Conducted per ASTM B912 to remove burrs and micro-cracks, enhancing corrosion resistance and smoothness.
6. Passivation:​ Citric acid immersion removes free iron and forms a protective oxide layer, extending service life.
7. Ultrasonic Cleaning:​ 40 kHz high-frequency vibration dislodges microscopic debris from internal channels, followed by thorough drying to ensure food-grade cleanliness.
8. Comprehensive QC:​ High-magnification microscopy verifies orifice integrity, while CMMs validate dimensions. Only parts meeting stringent criteria for size, hardness, and aesthetics proceed to PP bag packaging; custom packaging is available.

Many competitors cut corners by omitting polishing, passivation, or cleaning-issues that manifest as blockages or rust only after extended use. The V3 manufacturer adheres strictly to all eight processes under ISO 13485 oversight. In precision manufacturing, there are no shortcuts; reliability is earned by upholding every process standard.