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Zhejiang Jingliang Copper-Tube Products Co., Ltd

Wholesale Seamless Precision Tube

Seamless Precision Tube

-- Steady & Reliable Manufacturer --

Engineering Excellence in Micro-Tolerances

Seamless precision copper tube is the "Elite Grade" of tubing, designed for high-performance applications where standard industrial tolerances are simply not enough. At Zhejiang Jingliang, our precision tubes are characterized by "Micro-Scale Accuracy" in both Outside Diameter (OD) and Wall Thickness. Unlike general-purpose pipes, these tubes are produced through multiple stages of cold-pilgering and "Floating Plug" drawing, which achieves an internal and external surface finish that is nearly mirror-like. This is critical for applications involving high-velocity fluid flow, where even the smallest surface irregularity can cause turbulence, noise, or localized erosion. Our seamless manufacturing ensures there is no "weak seam," allowing these tubes to handle extreme burst pressures that would rupture standard welded or less-refined tubing.

The "Seamless" nature of our precision tube is vital for "Critical Leak-Free Environments," such as aerospace fuel lines or semiconductor gas delivery. We offer these in various alloys, including oxygen-free copper (C10200) for vacuum applications. A major focus of our precision line is "Eccentricity Control"—ensuring the hole is perfectly centered in the tube. This allows for uniform heat distribution and predictable mechanical strength when the tube is flared or swaged. Whether used in the miniature heat pipes of a high-end laptop or the hydraulic controls of a luxury aircraft, Jingliang Seamless Precision Tubes provide the reliability that only comes from 100% metallurgical integrity and world-class manufacturing standards.

Precision Engineering & Tolerance Specs

PropertyPrecision Tube Specification
OD ToleranceUp to ± 0.02mm (Custom tight tolerances)
Wall Thickness ToleranceUp to ± 0.03mm
Surface Roughness (Ra)≤ 0.4 μm (Internal and External)
Concentricity≥ 95% (Excellent uniformity)
Material GradeC12200 / C10200 / C12000
Temper RangeO60 to H80 (Tailored to application)
Non-Destructive Testing100% Eddy Current & Ultrasonic
Internal Cleanliness< 0.015 g/m² (Ultra-Clean)
StandardASTM B75 / EN 12449 / DIN 1754
SizesOD 1.0mm to 50mm

Aerospace, Semiconductors, and High-End Electronics

Seamless precision tubes are essential in "Aerospace Fuel and Hydraulic Lines," where weight saving and high-pressure reliability are paramount. They are used in "Semiconductor Manufacturing" for the delivery of high-purity process gases. In the "Electronics" industry, micro-diameter precision tubes are used as "Heat Pipes" to cool CPUs and GPUs in gaming computers and servers. "Automotive Fuel Injection" systems use them for high-pressure diesel or gasoline rails. They are also found in "Medical Equipment," such as high-end MRI cooling systems and surgical instruments. In "Instrumentation and Control," they serve as the sensing lines for precision pressure gauges and laboratory chromatography equipment where "dead volume" must be minimized through perfect internal diameter control.

Ultra-High Reliability and Performance Consistency

The primary advantage is "Unmatched Pressure Integrity," as the seamless construction eliminates the risk of seam failure under thermal or mechanical shock. "Exceptional Surface Smoothness" reduces fluid friction, which "Lowers Pumping Energy" and prevents the accumulation of contaminants inside the line. Our "Tight Dimensional Tolerances" allow for "Automated Robotic Assembly" without the risk of parts not fitting, which significantly "Reduces Manufacturing Costs" for our clients. The "High Concentricity" of our tubes ensures that when they are joined via high-precision orbital welding or compression fittings, the seal is 100% reliable. Copper’s "Natural Ductility" combined with our precision drawing makes these tubes "Easily Formable" into complex shapes without kinking. Finally, the "Ultra-Clean Interior" makes them "Ready-to-Use" for the most sensitive gas or liquid applications, saving you the cost of secondary cleaning processes.

Clean-Room Packaging and Secure Transit

Precision tubes are treated as "Technical Components." Each tube is individually sleeved in plastic and shipped in "Impact-Resistant PVC or Wooden Tubes" to ensure they remain perfectly straight and scratch-free. Payment is 30% T/T and 70% L/C. We ship from Ningbo, providing "Full Dimensional Inspection Reports" for every batch. For ultra-high purity applications, we offer "Double-Bagged Vacuum Packaging" and nitrogen purging. Our logistics team understands that even a small dent can ruin a precision tube, so we use "White Glove" handling procedures throughout the loading and unloading process.

  • Q: What is the thinnest wall you can produce for precision tubes?
  • A: We can produce walls as thin as 0.2mm for specialized electronic heat pipe applications.
  • Q: Do you provide "Certificate of Conformity" for aerospace use?
  • A: Yes, we provide full traceability back to the raw material melt, including all mechanical and chemical testing results required for aerospace standards.
ABOUT US
30+YEARS OF
EXPERIENCE
About Us

A Reliable Partner of the Copper Tube Industry

Zhejiang Jingliang Copper-Tube Products Co., Ltd is China Seamless Precision Tube and Seamless Precision Tube Factory, which established in 1994, has been deeply involved in the copper tube industry for over three decades. The company primarily produce various specifications of products such as copper tubes, brass tubes, copper square tubes, fin copper tubes, copper capillary tubes, condenser copper tubes, copper evaporator tubes, and conductive rods, which are of quality and have earned the trust and acclaim of customers both domestically and internationally.

Wide Applications:

These products are widely used in various fields including air conditioning, refrigeration, heat exchange, sanitary ware, automotive, machinery, electric furnaces, and chemical industries.

Convenient Transportation:

Strategically located in Tangpu Town, renowned as the “home of copper tubes” in East China. Our company enjoys a prime location, adjacent to the Shangsan Expressway and National Highway 104, and is conveniently situated just over 70 kilometers from Hangzhou and Ningbo, ensuring easy accessibility and a business position.

Strong Financial Resources:

With its strong financial resources and advanced copper tube processing technology, our company holds an advantageous position in market share, brand value, technological content, and product quality, becoming a preferred supplier for many listed groups.

Large Scale Production:

The company occupies an area of over 20,000 square meters, with a construction area of 12,800 square meters. In 2022, our annual production exceeded 7,500 tons, with a value output of up to 450 million yuan, demonstrating our strong production capacity and market competitiveness.

Comprehensive Industry Chain:

Jingliang has now developed into a complete industrial chain integrating smelting, extrusion, drawing, precision rolling, and annealing. It has been awarded multiple honors, including "Top Ten Copper Tube Enterprises" and "Leading Taxpayer in the Copper Tube Industry".

Smart Manufacturing:

Jingliang Copper-Tube Products will better integrate the concept of factory construction into its corporate development strategy, insist on refining technology and polishing products more finely, and the future of "intelligent manufacturing".

Genuine Cooperation:

Zhejiang Jingliang Copper-Tube Products Co.,Ltd warmly welcomes friends from all walks of life to visit and offer guidance. We look forward to joining hands with you to create a brilliant future together.

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