At LIJ Med Tube, our ultra-thin wall stainless steel and specialized alloy tubing represents the precision standard in the medical device industry. Through our advanced cold-drawing process, we consistently deliver exceptional material surface finishes and microscopic wall thickness tolerances. Starting with premium raw materials, we engineer our thin-wall tubing to meet the most stringent quality and biosecurity standards required for critical medical applications.
Going beyond standard execution, we treat Micro-Tubing and Medical Needles as two distinct technical dimensions. Our small-diameter tubing is cold-drawn to exact dimensions, achieving flawless inside (ID) and outside (OD) diameter finishes. Simultaneously, our dedicated needle division features proprietary tip grinding, multi-bevel configurations, and precision laser processing to ensure optimal penetration and structural integrity.
Backed by a rigorous, medical-grade cleaning process and agile manufacturing capabilities, LIJ Med Tube delivers custom, burr-free components with reliable turnaround times to keep your global MedTech projects perfectly on track.
Custom Thin-Wall Stainless Steel Tubing Specifications
At LIJ Med Tube, we do not just offer standard sizes—we specialize in 100% custom-engineered dimensions tailored to your exact blueprints. From high-precision medical hypotubes to complex delivery system components, every run of our thin-walled steel tubing is cold-drawn to achieve microscopic tolerances and absolute wall uniformity across the entire batch.
We routinely push the structural boundaries of metal fabrication, offering ultra-thin wall limits down to 0.03 mm to maximize flow volume while maintaining structural integrity.
| Parameter | Minimum | Maximum | Manufacturing Capability |
|---|---|---|---|
| Outside Diameter (OD) | 0.05 mm | 6.00 mm | Fully customizable to print |
| Wall Thickness (WT) | 0.025 mm | 1.5mm | Engineered at the physical limit |
Stainless Steel Alloys
Our stainless steel tubing is most commonly available in the following compositions:
- Austenitic 304 (SUS304 / 1.4301)： Needle tubes and hypotubes,etc.
- 316L (SUS316L / 1.4404)：This is an extra-low-carbon stainless steel alloyed with molybdenum (Mo). It offers significantly superior pitting and corrosion resistance compared to 304 stainless steel, making it better suited for implants and endoscopic components that come into long-term contact with human tissue or highly corrosive medicinal fluids.
- Duplex 2205 (S32205)：It is primarily used for large-scale reaction vessels in pharmaceutical plants, high-pressure chemical pipelines, and components of certain specialized interventional medical devices subject to extremely high loads.
- Precipitation Hardening（17-4 PH (630), 15-5 PH）：It is commonly used to manufacture high-strength, precision components—such as handles for minimally invasive surgical robots, complex drive shafts, and surgical forceps pivots—that must withstand repeated high-temperature, high-pressure sterilization without deforming.
Other Alloys
Our stainless steel tubing is most commonly available in the following compositions:
- Nitinol – NiTi: Guide Wires & Micro-tubing，Self-expanding Stents,etc.
- Cobalt-Chromium – CoCr: Coronary Stents，Joint Replacements，Heart Valve Frames ,etc.
- Platinum-Iridium – Pt-Ir: Marker Bands,Pacemaker Lead Tips,Electrodes for Neural Stimulation and Brain-Computer Interfaces,etc.
Precision Cold-Drawing & Dimension Customization
This is the foundation of our business.
- 100% custom-made to specifications: Offering ultra-thin-walled microtubes with outer diameters ranging from 0.05 mm to 6.00 mm and wall thicknesses as low as 0.025 mm.
- Multi-material drawing: Covers austenitic stainless steels (304/304L, 316L) as well as a range of specialty alloys, meeting diverse requirements for biocompatibility and corrosion resistance.
- Micron-level tolerance control: Ensures absolute wall thickness uniformity across the entire tube section during mass production.
Advanced Secondary Processing
We offer one-stop deep processing services.
- Precision Burr-Free Cutting: Ensures the cut end of the tube is extremely smooth and free of any metal burrs—a critical requirement for instruments such as endoscopes and interventional catheters that necessitate internal threading.
- Precision Tip Grinding: Tailored to medical needle dimensions, this process utilizes proprietary multi-bevel and specialized tip grinding techniques to ensure superior puncture performance.
- Laser Slotting & Drilling: Intricate serpentine slots are laser-cut into microtubes (such as hypotubes) to impart optimal flexibility to the stainless steel tubing, enabling it to bend freely within blood vessels.
Medical-Grade Surface Treatment and Cleaning Services
We meet the extremely stringent requirements for the inner surface and cleanliness of microtubes used in medical devices.
- ID/OD Polishing: Provides polishing services with ultra-high surface finish to reduce fluid resistance along the inner walls.
- Proprietary Medical-Grade Cleaning: Thoroughly removes contaminants such as metal debris and drawing oils resulting from cold-drawing and machining processes, meeting extremely stringent standards for biocompatibility and cleanliness.
- Surface passivation treatment：We provide surface passivation treatments that meet the requirements of various international standards.
Let’s work together
We provide the industry's best services and cost-effective solutions.
sales@lijmedtube.com
Phone
86-13057769315
Adress
NO. 1568,AVENUE 1ST, BINHAI ZONE, WENZHOU ECO. TECH DEV. DIST WENZHOU CITY, ZHEJIANG, 325024, CHINA