Dongguan Yuelinsen Metal Technology Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 50000000pcs |
| Delivery Time | 5-8 working days |
| Packaging Details | Vacuum packaging cardboard box |
| Shape | Circle |
| Quality Control | 100% Inspection Berore Shipment |
| Size | Customized |
| Biocompatibility | Meets ASTM F138 standards |
| Surfacefinish | Ra 0.8 - 1.6 µm |
| Cnc Milling Tolerance | ± 0.05 mm (± 0.002 |
| Manufacturingprocess | CNC Machining, Milling, Turning |
| Process | Cnc Machining+deburrs |
| Wall Thickness | 0.1 mm - 3.0 mm |
| Type | CNC Machining |
| Laser Cutting Tolerance | ± 0.10 mm (± 0.004 |
| Payment Term | TT Westerm Union MomeyGram Paypal |
| Sizerange | Custom sizes available, typically 1mm to 300mm |
| Feature | Slip Resistant |
| Composition | Stainless Steel |
| Brand Name | Yue lin sen |
| Model Number | Y2661 |
| Certification | ISO9001 ISO13485 |
| Place of Origin | Guangdong |
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Product Specification
| Payment Terms | T/T | Supply Ability | 50000000pcs |
| Delivery Time | 5-8 working days | Packaging Details | Vacuum packaging cardboard box |
| Shape | Circle | Quality Control | 100% Inspection Berore Shipment |
| Size | Customized | Biocompatibility | Meets ASTM F138 standards |
| Surfacefinish | Ra 0.8 - 1.6 µm | Cnc Milling Tolerance | ± 0.05 mm (± 0.002 |
| Manufacturingprocess | CNC Machining, Milling, Turning | Process | Cnc Machining+deburrs |
| Wall Thickness | 0.1 mm - 3.0 mm | Type | CNC Machining |
| Laser Cutting Tolerance | ± 0.10 mm (± 0.004 | Payment Term | TT Westerm Union MomeyGram Paypal |
| Sizerange | Custom sizes available, typically 1mm to 300mm | Feature | Slip Resistant |
| Composition | Stainless Steel | Brand Name | Yue lin sen |
| Model Number | Y2661 | Certification | ISO9001 ISO13485 |
| Place of Origin | Guangdong | ||
| High Light | 316L Stainless Steel Capillary Tube ，CNC Milling Filling Needle ，Biocompatible Medical Needle | ||
316L Stainless Steel Capillary Tube Medical Parts CNC Milling Filling Needle
The 316L Stainless Steel Capillary Tubing Medical Component CNC Milled Filling Needle is a precision-engineered instrument designed for the accurate and sterile transfer, dispensing, or micro-dosing of liquids in medical, pharmaceutical, and laboratory settings. Utilizing 316L stainless steel capillary tubing as the core material, this component undergoes advanced CNC milling to create a robust, integrated needle assembly with a sharp, precise tip, controlled internal lumen, and custom external features. It is specifically designed for applications requiring high corrosion resistance, biocompatibility, and reliable performance with sensitive fluids.
Material Preparation: Selection and cutting of certified 316L stainless steel capillary tubing (ASTM A269) to precise length.
Precision Tip Machining (CNC Milling/ Grinding): Using micro-machining techniques to shape the needle tip. This can create:
A sharp, beveled point for piercing septa.
A blunt, polished end for cannula applications.
A specialized geometry (e.g., side-bore, deflected tip).
Body/Feature Milling: CNC milling of flats, grooves, shoulders, or mounting features onto the capillary tubing body to integrate it into a larger assembly (e.g., a syringe barrel adaptor, Luer lock hub).
Hub/Connector Fabrication & Integration: Machining a separate hub (from 316L or medical plastic) and permanently attaching it to the capillary tube via laser welding, press-fitting, or adhesive bonding.
Internal Lumen Polishing: Electropolishing of the internal bore to achieve a smooth, non-stick surface for consistent fluid flow and easy cleaning.
Surface Finishing: Full component electropolishing and passivation to maximize corrosion resistance and cleanability.
Cleaning & Sterilization: Ultrasonic cleaning and validation for Gamma irradiation or Ethylene Oxide (EtO) sterilization.
Functional Testing: Flow rate verification, leak testing, and tip sharpness assessment.
Pharmaceutical Aseptic Filling: For precise, sterile filling of vials, syringes, or cartridges with vaccines, biologics, or high-value drugs.
In-Vitro Diagnostics (IVD) & Analyzers: As a sample probe or reagent dispenser in automated blood analyzers, PCR systems, or clinical chemistry instruments.
Microfluidic Device Interfaces: Serving as a robust, precision connection between macro-scale fluidic systems (e.g., syringes, pumps) and microfluidic chips or cartridges.
Laboratory Automation: As a component in liquid handling robots for nanoliter to microliter dispensing.
Medical Device Drug Delivery: Integrated into specialized syringes or auto-injectors for controlled administration.
Adhesive/Sealant Dispensing in Medical Assembly: For precise application of medical-grade adhesives during device manufacturing.
| Parameter Category | Specification | Details & Options |
|---|---|---|
| Material | Primary Material | 316L Stainless Steel Capillary Tubing (Low Carbon, ASTM A269). Offers superior corrosion resistance, especially to chlorides, and excellent biocompatibility (ISO 10993 compliant). |
| Construction | Method | Hybrid: Combines capillary tubing with CNC milled features (tip, hub, body details). |
| Needle Tip | Tip Types | Sharp Bevel (Hypodermic): For septum piercing. Blunt/Polished (Cannula): For existing openings or delicate tissues. Side-Bore/Deflected: For specific flow direction. |
| Tip Geometry Tolerance | High precision; bevel angle consistency within ±1°. | |
| Tubing Specifications | Outer Diameter (OD) | Standard Range: 0.5 mm (25G) to 2.0 mm (14G). |
| Inner Diameter (ID) / Lumen | Customizable: Dictates flow rate. Typical range: 0.2 mm to 1.5 mm. | |
| Wall Thickness | Calculated as (OD-ID)/2. Determines pressure rating and rigidity. | |
| Integrated Features (Milled) | Hub/Connector | Luer Lock (Male or Female): ISO 594 standard. Tapered (Luer Slip). Custom thread or barbed fitting. |
| Body Features | Flats for wrench grip, grooves for O-rings/snap rings, fins for handling. | |
| Dimensions | Overall Length | Common: 20 mm to 150 mm. Fully customizable. |
| Performance | Flow Rate | Calculated based on ID, length, and fluid viscosity (Poiseuille's law). Can be validated. |
| Pressure Rating | High, due to 316L strength. Suitable for high-pressure dispensing (e.g., 100+ bar). | |
| Dead Volume | Can be minimized through design, crucial for precious fluids. | |
| Surface Finish | Internal Lumen (Critical) | Electropolished to Ra ≤ 0.2 µm. Ensures smooth flow, prevents protein adhesion, and eases cleaning/sterilization. |
| External Surface | Electropolished & Passivated. Ra ≤ 0.4 µm. | |
| Tolerances | Critical Dimensions | OD/ID: ±0.02 mm. Length: ±0.1 mm. Concentricity: < 0.05 mm TIR. |
| Sterilization & Packaging | Sterilization Method | Validated for Gamma Irradiation (25 kGy) and Ethylene Oxide (EtO). |
| Sterility Assurance Level (SAL) | 10⁻⁶ | |
| Packaging | Individual sterile blister pack or tray, suitable for cleanroom unpacking. | |
| Quality & Compliance | Biocompatibility | ISO 10993 certified (Cytotoxicity, Sensitization, Irritation – typically passed by 316L). |
| Traceability | Full material lot traceability from tubing to finished needle. | |
| Customization | High Degree of Customization | Tip style, OD/ID, length, hub type, and any milled features can be tailored to the specific fluid path and integration requirements of the customer's device or system. |
| Key Advantage | Material + Process Combination | The 316L material provides the essential corrosion resistance and biocompatibility for medical fluids. The CNC milling process allows the creation of a complex, integrated, and robust component from this tubing, beyond simple cut-and-polished needles. |
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2018
Total Annual:
1 million-2 million
Employee Number:
20~50
Ecer Certification：
Verified Supplier
Dongguan Yue Lin Sen Metal Technology Co., Ltd. has passed the GB/T 19001-2016/ISO 9001:2015 quality management system certification and the GB/T 42061-2022/ISO 13485:2016 medical device quality management system certification. It specializes in the research and production of non-standard metal medi... Dongguan Yue Lin Sen Metal Technology Co., Ltd. has passed the GB/T 19001-2016/ISO 9001:2015 quality management system certification and the GB/T 42061-2022/ISO 13485:2016 medical device quality management system certification. It specializes in the research and production of non-standard metal medi...
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