This high-precision custom puncture needle is crafted from 304 or 316L stainless steel capillary tubing. Designed for specialized applications requiring precise penetration and fluid handling, it features key manufacturing processes such as tapering and reducing the needle's diameter for a sharp, robust tip and specific needle profiles. Finished with sandblasting for a uniform, matte, and non-slip surface, it is marked with clear, permanent graduations for accurate depth control. A comprehensive custom machining solution, it offers excellent biocompatibility and corrosion resistance, perfect for demanding environments.


Medical & Veterinary: Ideal for biopsy needles, fluid aspiration/injection, epidural/anesthesia needles, ophthalmic surgery, and micro-invasive procedures.
Industrial & Scientific: Perfect for precision fluid sampling (e.g., chromatography), probe needles for testing, micro-dispensing, and specialized fluidic system connections.
| Parameter Category | Specific Parameter | Description / Standard Options |
|---|---|---|
| Base Material | Material Grade | 304 Stainless Steel / 316L Stainless Steel |
| Key Property | 316L offers superior corrosion resistance, ideal for harsh environments like saline. | |
| Dimensions | Outer Diameter (OD) | Customizable, standard range from 0.2 mm to 2.5 mm. |
| Inner Diameter (ID) | Customizable, determined by wall thickness requirement. | |
| Wall Thickness | Customizable. | |
| Needle Length | Customizable as per application. | |
| Processing & Features | Tapering / Point Grinding | Precision ground to a sharp, burr-free point (e.g., lancet, pencil point). |
| Reducing (Swaging) | Tube OD is reduced to create specific profiles or facilitate fittings. | |
| Graduations / Scale | Precision laser-engraved scales for depth measurement. | |
| Surface Finish | Sandblasting/ Bead Blasting: Standard matte, non-glare finish. | |
| Marking | Permanent laser marking for logos or part numbers. |



Our facility has obtained the GB/T 19001-2016/ISO 9001:2015 quality system certification, as well as the GB/T 42061-2022/ISO 13485:2016 medical device quality system certification. We focus on the research and production of non-standard metal medical device precision parts.
Equipped with dozens of high-precision engraving lathes and CNC equipment, including CNC numerical control, centering machines, automatic lathes, and turning-milling combined machines. We specialize in precision laser cutting and secondary processing of stainless steel capillary tubes and thin-walled tubes.




