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High-Quality Custom Precision Capillary Stainless Steel Tubes (OD 1mm - 8mm) from China Suppliers & Factory Service, Exporter
Product Description
Product Overview
Shenzhen Sunmy Hardware Co.,Ltd. specializes in manufacturing high-precision capillary stainless steel tubes and pipes, offering unparalleled quality for demanding industrial applications. With outer diameters ranging from 1mm to 8mm, these micro-tubular components are engineered for critical systems in medical devices, aerospace, precision instrumentation, and automotive engineering. Acting as your dedicated manufacturing partner, we provide 100% fully customizable OEM and ODM solutions. Whether you require standard straight tubes or complex geometric configurations, our robust development capabilities ensure your exact specifications are transformed into flawless physical products.
Process & Manufacturing Insights
Our capillary stainless steel tubes are crafted through a rigorous combination of advanced cold-drawing and Precision CNC Turning processes.
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Precision Turned Parts
We excel in secondary machining. Using state-of-the-art CNC lathes, we can perform intricate internal and external turning, threading, chamfering, and grooving on micro-tubes with exceptional accuracy.
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Comprehensive Fabrication
Beyond basic cutting, our in-house capabilities include precision bending, welding, punching, decoiling, and end-forming.
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Stringent Quality Control
From raw material selection to final surface treatment, every step is monitored to maintain a strict ±1% tolerance, ensuring perfect concentricity, structural integrity, and a burr-free finish.
Key Specifications
| Specification Category | Details / Parameters |
|---|---|
| Product Type | Seamless Capillary Stainless Steel Tube / Pipe |
| Material Grade | 300 Series (304, 304L, 316, 316L, 316Ti, 310S), 201, 2205, 2507 |
| Outer Diameter (OD) | 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm (100% Customizable) |
| Tolerance | ± 1% (High Precision) |
| Section Shape | Round (Customizable to Square/Rectangular) |
| Manufacturing Standard | AISI, ASTM, DIN, JIS, BS, NB |
| Processing Services | Precision Turning, Cutting, Welding, Bending, Punching, Decoiling, Molding |
| Surface Treatment | Polished, Hairline, Pickled, NO.1, etc. |
| Origin | Shenzhen, China (Shenzhen Sunmy Hardware Co.,Ltd.) |
| Lead Time | 15 - 21 Days (Subject to order volume and complexity) |
Main Features & Advantages
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🎯100% Customization Driven: We do not just sell standard parts; we engineer solutions. From exact lengths and specific OD/ID ratios to complex turned features, every tube is tailored to your blueprint.
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💪Exceptional Durability: Manufactured from premium 300-series stainless steel, these tubes offer outstanding resistance to corrosion, oxidation, and high temperatures, making them ideal for harsh environments.
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🔬High-Precision Tolerances: Our advanced turning and machining capabilities guarantee micro-level precision, ensuring seamless integration into your final assembly.
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🏠One-Stop Manufacturing Hub: Shenzhen Sunmy Hardware provides end-to-end services, reducing your supply chain complexity by handling raw material sourcing, precision machining, surface finishing, and global logistics under one roof.
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Frequently Asked Questions
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Can you customize the ends of the capillary tubes?
Yes. Because our core expertise includes Precision Turned Parts, we can customize the tube ends with threads, chamfers, flares, or custom grooves to fit your specific assembly requirements perfectly.
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What is the standard lead time for customized orders?
Our standard production cycle is typically 15 to 21 days. However, for urgent projects, our flexible production lines and strong R&D team can expedite the process upon request.
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How do you guarantee the quality of such small diameter tubes?
We employ rigorous inspection protocols, including dimensional checks using optical measurement systems, material composition analysis, and pressure testing (if required), ensuring every batch meets international standards (ASTM, DIN, etc.) and your exact tolerances.
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Which stainless steel grades are most suitable for medical device applications?
For medical device applications, we recommend 316L or 316Ti grades due to their superior biocompatibility, excellent corrosion resistance to body fluids and sterilization chemicals, and low carbon content that minimizes sensitization risk.
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What surface treatment options are available, and how do I choose the right one?
We offer a range of surface finishes including Polished (mirror or satin), Hairline, Pickled, and NO.1 finish. The right choice depends on your application: polished finishes are ideal for medical or food-grade uses, pickled finishes improve corrosion resistance, and hairline finishes suit decorative or precision instrument applications.
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Do you provide material certifications and test reports with shipments?
Yes. We provide full material traceability documentation including Mill Test Reports (MTR), material composition certificates, and dimensional inspection reports with every order. Third-party testing can also be arranged upon request.
Get a Fast, Technical Quote & Free DFM Review
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